Java 设计模式最佳实践
因此,我开始用设计模式编写应用程序。我被夹在两者之间。如果我犯了愚蠢的错误,请原谅我 我开始创建一个基本活动,比如 基本活动:Java 设计模式最佳实践,java,android,Java,Android,因此,我开始用设计模式编写应用程序。我被夹在两者之间。如果我犯了愚蠢的错误,请原谅我 我开始创建一个基本活动,比如 基本活动: public abstract class BaseAppCompatActivity extends AppCompatActivity { private ProgressDialog mProgressDialog; private Toolbar mToolbar; private TabLayout mTabLayout;
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(getLayoutResource());
initiateViews();
initToolBar();
initTabLayout();
}
public abstract int getLayoutResource();
protected abstract void initiateViews();
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
public int getLayoutResource() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".activity.SplashActivity">
<include layout="@layout/content_splash" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:background="@color/colorPrimary"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".activity.SplashActivity"
tools:showIn="@layout/activity_splash">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/margin_32"
android:text=""
android:textColor="@android:color/white"
android:textSize="36sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
protected abstract void initiateViews();
private void initDatabase() {
ActiveAndroid.initialize(this);
}
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
protected int getLayoutResourceId() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
现在,我的第一个活动SplashActivity
将扩展该BaseAppCompatActivity
,我将其编码如下:
splash活动:
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(getLayoutResource());
initiateViews();
initToolBar();
initTabLayout();
}
public abstract int getLayoutResource();
protected abstract void initiateViews();
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
public int getLayoutResource() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".activity.SplashActivity">
<include layout="@layout/content_splash" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:background="@color/colorPrimary"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".activity.SplashActivity"
tools:showIn="@layout/activity_splash">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/margin_32"
android:text=""
android:textColor="@android:color/white"
android:textSize="36sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
protected abstract void initiateViews();
private void initDatabase() {
ActiveAndroid.initialize(this);
}
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
protected int getLayoutResourceId() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
问题是我得到的是白色屏幕,而不是我的布局。为什么?
请提供适当和详细的原因回答。此外,我如何进一步改进当前的BaseAppCompatActivity
编辑:根据请求添加清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.androidveteran.android.xxx">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:name=".baseclass.BaseApplication"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".activity.SplashActivity"
android:label="@string/app_name"
android:theme="@style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".activity.IntroductionActivity"
android:label="@string/title_activity_introduction"
android:theme="@style/AppTheme.NoActionBar" />
<activity
android:name=".activity.LoginActivity"
android:label="@string/title_activity_login"
android:parentActivityName=".activity.IntroductionActivity"
android:theme="@style/AppTheme.NoActionBar">
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.androidveteran.android.restclient.activity.IntroductionActivity" />
</activity>
<meta-data
android:name="AA_DB_NAME"
android:value="xxx.db" />
<meta-data
android:name="AA_DB_VERSION"
android:value="1" />
<meta-data
android:name="AA_MODELS"
android:value="com.androidveteran.android.xxx.database.model.User" />
<activity
android:name=".activity.HomeActivity"
android:label="@string/title_activity_home"
android:theme="@style/AppTheme.NoActionBar" />
</application>
</manifest>
活动\u splash.xml:
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(getLayoutResource());
initiateViews();
initToolBar();
initTabLayout();
}
public abstract int getLayoutResource();
protected abstract void initiateViews();
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
public int getLayoutResource() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".activity.SplashActivity">
<include layout="@layout/content_splash" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:background="@color/colorPrimary"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".activity.SplashActivity"
tools:showIn="@layout/activity_splash">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/margin_32"
android:text=""
android:textColor="@android:color/white"
android:textSize="36sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
protected abstract void initiateViews();
private void initDatabase() {
ActiveAndroid.initialize(this);
}
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
protected int getLayoutResourceId() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
content\u splash.xml:
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(getLayoutResource());
initiateViews();
initToolBar();
initTabLayout();
}
public abstract int getLayoutResource();
protected abstract void initiateViews();
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
public int getLayoutResource() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".activity.SplashActivity">
<include layout="@layout/content_splash" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:background="@color/colorPrimary"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".activity.SplashActivity"
tools:showIn="@layout/activity_splash">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/margin_32"
android:text=""
android:textColor="@android:color/white"
android:textSize="36sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
protected abstract void initiateViews();
private void initDatabase() {
ActiveAndroid.initialize(this);
}
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
protected int getLayoutResourceId() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
是。使用带有一个参数的方法原型是第一步,在
BaseAppCompatActivity
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
}
到
。我还必须在SplashActivity中将onCreate()
的方法类型更改为public:
@Override
public void onCreate(Bundle savedInstanceState) {
}
直到那时,它才起作用。最后,我的代码如下所示:
基本活动:
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(getLayoutResource());
initiateViews();
initToolBar();
initTabLayout();
}
public abstract int getLayoutResource();
protected abstract void initiateViews();
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
public int getLayoutResource() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".activity.SplashActivity">
<include layout="@layout/content_splash" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:background="@color/colorPrimary"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".activity.SplashActivity"
tools:showIn="@layout/activity_splash">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/margin_32"
android:text=""
android:textColor="@android:color/white"
android:textSize="36sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
protected abstract void initiateViews();
private void initDatabase() {
ActiveAndroid.initialize(this);
}
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
protected int getLayoutResourceId() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
splash活动:
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
super.onCreate(savedInstanceState, persistentState);
setContentView(getLayoutResource());
initiateViews();
initToolBar();
initTabLayout();
}
public abstract int getLayoutResource();
protected abstract void initiateViews();
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
public int getLayoutResource() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".activity.SplashActivity">
<include layout="@layout/content_splash" />
</android.support.design.widget.CoordinatorLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
android:background="@color/colorPrimary"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context=".activity.SplashActivity"
tools:showIn="@layout/activity_splash">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:orientation="vertical">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/logo" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="@dimen/margin_32"
android:text=""
android:textColor="@android:color/white"
android:textSize="36sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
public abstract class BaseAppCompatActivity extends AppCompatActivity {
private ProgressDialog mProgressDialog;
private Toolbar mToolbar;
private TabLayout mTabLayout;
private boolean hasToolBar;
private boolean hasTabLayout;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(getLayoutResourceId());
}
protected abstract int getLayoutResourceId();
protected abstract void initiateViews();
private void initDatabase() {
ActiveAndroid.initialize(this);
}
public void setHasToolBar(boolean hasToolBar){
this.hasToolBar = hasToolBar;
}
public void initToolBar() {
if (hasToolBar){
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
}
}
public Toolbar getToolBar(){
return mToolbar;
}
public void setHasTabLayout(boolean hasTabLayout){
this.hasTabLayout= hasTabLayout;
}
public void initTabLayout(){
if (hasTabLayout){
mTabLayout = (TabLayout)findViewById(R.id.tabLayout);
}
}
public void showProgressDialog() {
mProgressDialog = ProgressDialog.show(this, "Loading", "Please wait...", true, false);
}
public void hideProgressDialog() {
if (mProgressDialog != null && mProgressDialog.isShowing()) {
mProgressDialog.dismiss();
}
}
public void showToast(String message) {
Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
}
public void logInformation(Class tag, String description) {
Log.i(tag.getName(), description);
}
public void logError(Class tag, String description) {
Log.e(tag.getName(), description);
}
public void logDebug(Class tag, String description) {
Log.d(tag.getName(), description);
}
public void launchActivity(Class activity, Bundle bundle) {
Intent intent = new Intent(this, activity);
if (bundle != null) {
intent.putExtras(bundle);
}
startActivity(intent);
}
public void launchActivity(Class activity) {
launchActivity(activity, null);
}
public void loadFragment(){}
public String getStringResource(int key){
return getResources().getString(key);
}
}
public class SplashActivity extends BaseAppCompatActivity {
private Context mContext = this;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// setContentView(R.layout.activity_splash);
// new Handler().postDelayed(new Runnable() {
// @Override
// public void run() {
// startActivity(new Intent(mContext, IntroductionActivity.class));
// }
// }, 4000);
}
@Override
protected int getLayoutResourceId() {
return R.layout.activity_splash;
}
@Override
protected void initiateViews() {
setHasToolBar(false);
}
}
事情发生在您调用的
onCreate()
方法的SplashActivity
中
@Override
public void onCreate(Bundle savedInstanceState) {
但是,在BaseAppCompatActivity
中,您正在使用带有其他参数的onCreate()
方法
@Override
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) {
尝试使用相同的参数。请显示android清单。请共享activity_splash.xml,因为这有您的屏幕布局。我的清单和布局代码很好,我很确定。我在实现自己的
BaseAppCompativeActivity
@bigdescroyer时出错了。您可以检查我的清单。尝试将@Override public void onCreate(Bundle savedInstanceState,persistable Bundle persistentState){
更改为@Override public void onCreate(Bundle savedInstanceState){
在baseAppCompativity
好。如果我将其改写为答案,你会接受我的评论吗?@VasilyKabunov为什么不..添加你的答案并解释一下,我会接受。不是问题:)