Android 导航抽屉汉堡图标丢失
我这里有一个设置导航抽屉的代码。所有工作正常,但应在那里单击并打开抽屉的汉堡图标未出现。Main活动:Android 导航抽屉汉堡图标丢失,android,Android,我这里有一个设置导航抽屉的代码。所有工作正常,但应在那里单击并打开抽屉的汉堡图标未出现。Main活动: import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.ActionBarDrawerToggle; import android.support.v7.app.AppCompatActivity; import a
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBar;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.defcomm.invento.NavigationDrawerActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
public class INVENTO extends AppCompatActivity {
private Toolbar toolbar;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_invento);
toolbar= (Toolbar) findViewById(R.id.app_bar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
NavigationDrawerActivity drawerFragment= (NavigationDrawerActivity) getSupportFragmentManager().
findFragmentById(R.id.navigation_drawer);
drawerFragment.setUp(R.id.navigation_drawer, (DrawerLayout) findViewById(R.id.drawerlayout), toolbar);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_invento, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
导航效率:
import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.widget.Toolbar;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
/**
* A simple {@link Fragment} subclass.
*/
public class NavigationDrawerActivity extends Fragment {
private ActionBarDrawerToggle mdrawerToggle;
private DrawerLayout mdrawerLayout;
private boolean mUserLearnedState;
View containerId;
public static final String file_pref_name="Testpef";
public static final String KEY_USER_VALUE="user_learned_drawer";
private boolean mfromSavedInstanceState;
public NavigationDrawerActivity() {
// Required empty public constructor
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mUserLearnedState=Boolean.valueOf(readPreference(getActivity(), KEY_USER_VALUE, "false"));
if (savedInstanceState!=null){
mfromSavedInstanceState=true;
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.fragment_navigation_drawer, container, false);
}
public void setUp(int fragmentId,DrawerLayout drawerlayout,Toolbar toolbar) {
mdrawerLayout=drawerlayout;
containerId=getActivity().findViewById(fragmentId);
mdrawerToggle= new ActionBarDrawerToggle(getActivity(),drawerlayout,
R.string.drawer_open,R.string.drawer_close){
@Override
public void onDrawerOpened(View drawerView) {
super.onDrawerOpened(drawerView);
if(!mUserLearnedState){
mUserLearnedState=true;
saveToPreference(getActivity(),KEY_USER_VALUE,mUserLearnedState+"");
}
getActivity().invalidateOptionsMenu();
}
@Override
public void onDrawerClosed(View drawerView) {
super.onDrawerClosed(drawerView);
mdrawerToggle.setDrawerIndicatorEnabled(true);
getActivity().invalidateOptionsMenu();
}
};
if(!mUserLearnedState&&!mfromSavedInstanceState){
mdrawerLayout.openDrawer(containerId);
}
mdrawerLayout.setDrawerListener(mdrawerToggle);
mdrawerLayout.post(new Runnable() {
@Override
public void run() {
mdrawerToggle.syncState();
mdrawerToggle.setDrawerIndicatorEnabled(true);
}
});
}
public static void saveToPreference (Context context,String preferenceName,String preferenceValue){
SharedPreferences shared= context.getSharedPreferences(file_pref_name, Context.MODE_PRIVATE);
SharedPreferences.Editor editor=shared.edit();
editor.putString(preferenceName,preferenceValue);
editor.apply();
}
public static String readPreference(Context context,String preferenceName,String defaultValue){
SharedPreferences share= context.getSharedPreferences(file_pref_name,Context.MODE_PRIVATE);
return share.getString(preferenceName,defaultValue);
}
}
mainactivity.xml
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:id="@+id/drawerlayout"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">
<RelativeLayout android:layout_width="match_parent"
android:layout_height="match_parent"
>
<include
layout="@layout/app_bar"
android:id="@+id/app_bar"/>
<TextView
android:layout_below="@+id/app_bar"
android:text="@string/hello_world"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
<fragment
android:id="@+id/navigation_drawer"
android:layout_width="@dimen/drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
app:layout="@layout/fragment_navigation_drawer"
android:name="com.defcomm.invento.NavigationDrawerActivity"
tools:layout="@layout/fragment_navigation_drawer" />
我不知道这其中的错误在哪里。我正在使用这里的自定义工具栏交叉检查。但没用。我不知道故障是否真的在这里。请帮忙
final ActionBar actionBar = getSupportActionBar();
if(actionBar!=null)
{
actionBar.setHomeAsUpIndicator(android.R.drawable.ic_drawer);
actionBar.setDisplayHomeAsUpEnabled(true);
}
在您的任何活动中使用上述代码来放置导航抽屉的图标。你甚至可以在不同的活动中更改它
使用以下代码--
在
manifest.xml
<style name="AppTheme" parent="Theme.AppCompat.Light">
<!-- Customize your theme here. -->
<item name="colorPrimary">@color/primaryColor</item>
<item name="colorPrimaryDark">@color/primaryColor</item>
<item name="colorAccent">@color/primaryColor</item>
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="android:textColorPrimary">@android:color/white</item>
<item name="drawerArrowStyle">@style/DrawerArrowStyle</item>
<item name="actionMenuTextColor">@android:color/holo_blue_dark</item>
<item name="android:actionMenuTextColor">@android:color/holo_blue_dark</item>
<item name="android:windowBackground">@android:color/white</item>
<item name="android:screenOrientation">portrait</item>
</style>
<style name="DrawerArrowStyle" parent="Widget.AppCompat.DrawerArrowToggle">
<item name="spinBars">true</item>
<item name="color">@android:color/white</item>
</style>
<style name="ToolBarStyle" parent="">
<item name="popupTheme">@style/ThemeOverlay.AppCompat.Light</item>
<item name="theme">@style/ThemeOverlay.AppCompat.Light</item>
</style>
并在活动的onCreate
中调用此方法
setupNavigationView();
这是上面的方法
private void setupNavigationView() {
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, mToolbar, R.string.drawer_open, R.string.drawer_close) {
@Override
public void onDrawerClosed(View drawerView) {
// Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
super.onDrawerClosed(drawerView);
}
@Override
public void onDrawerOpened(View drawerView) {
// Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
super.onDrawerOpened(drawerView);
}
};
//Setting the actionbarToggle to drawer layout
mDrawerLayout.setDrawerListener(actionBarDrawerToggle);
//calling sync state is necessay or else your hamburger icon wont show up
actionBarDrawerToggle.syncState();
}
好的,很抱歉,我犯了一个错误,我的自定义工具栏犯了一个错误,我没有将它作为参数传递给mdrawerToggle。现在它工作正常。我的mainactivity.xml文件如下所示:检查这个编辑的答案,它经过测试,工作正常!先生,我在我的项目中使用了这种方法,但单击它时抽屉不会弹出。请帮助我。虽然按钮正在显示,但让我给您一个简单的解决方案,这将帮助您理解。并且会给你一个预煮的代码。如果您正在使用eclipse,请单击文件>新建>其他>Android>AndroidActivityNavigationDrawer及其在Android Studio中的类似功能。右键单击软件包>新建文件>活动>导航抽屉活动。试一下这个,你就会明白所有的流程。请参阅上一篇文章中编辑的答案。我尝试键入这个,但出现错误。也许我不知道要键入到哪里。请告诉我要键入到哪里。
mToolbar = (Toolbar) findViewById(R.id.toolbar_actionbar);
setSupportActionBar(mToolbar);
getSupportActionBar().setDisplayShowHomeEnabled(true);
getSupportActionBar().setTitle("Your Title");
setupNavigationView();
private void setupNavigationView() {
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
ActionBarDrawerToggle actionBarDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, mToolbar, R.string.drawer_open, R.string.drawer_close) {
@Override
public void onDrawerClosed(View drawerView) {
// Code here will be triggered once the drawer closes as we dont want anything to happen so we leave this blank
super.onDrawerClosed(drawerView);
}
@Override
public void onDrawerOpened(View drawerView) {
// Code here will be triggered once the drawer open as we dont want anything to happen so we leave this blank
super.onDrawerOpened(drawerView);
}
};
//Setting the actionbarToggle to drawer layout
mDrawerLayout.setDrawerListener(actionBarDrawerToggle);
//calling sync state is necessay or else your hamburger icon wont show up
actionBarDrawerToggle.syncState();
}