Java Android-未找到片段的视图
我正试图使替换的片段显示在详细信息片段中,但在平板电脑模拟器上调试我的应用程序并选择必要的列表视图项后,日志cat显示以下错误: 原因:java.lang.IllegalArgumentException:未找到碎片数据库{3b4ea8fb#0 id=0x7f0c0050}的id 0x7f0c0050(com.apptacularaps.exitExpertLondonLite:id/detail_container)的视图 我真的不明白,当我的片段在我的项目中时,为什么会出现这个错误。有人知道我做错了什么,以及如何解决这个问题吗 FragmentWCLine.javaJava Android-未找到片段的视图,java,android,android-intent,android-fragments,android-activity,Java,Android,Android Intent,Android Fragments,Android Activity,我正试图使替换的片段显示在详细信息片段中,但在平板电脑模拟器上调试我的应用程序并选择必要的列表视图项后,日志cat显示以下错误: 原因:java.lang.IllegalArgumentException:未找到碎片数据库{3b4ea8fb#0 id=0x7f0c0050}的id 0x7f0c0050(com.apptacularaps.exitExpertLondonLite:id/detail_container)的视图 我真的不明白,当我的片段在我的项目中时,为什么会出现这个错误。有人知道
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class FragmentWCLine extends android.support.v4.app.Fragment {
public final static String EXTRA_MESSAGE = "Station_key";
private class WC {
private CharSequence station;
private CharSequence zone;
private Class<? extends Activity> activityClass;
private Class<? extends android.support.v4.app.Fragment> fragmentClass;
public WC(int stationResId, int zoneResId, Class<? extends Activity> activityClass, Class<? extends android.support.v4.app.Fragment> fragmentClass) {
this.fragmentClass = fragmentClass;
this.activityClass = activityClass;
this.station = getResources().getString(stationResId);
this.zone = getResources().getString(zoneResId);
}
@Override
public String toString() { return station.toString(); }
public String getzone(){ return zone.toString(); }
}
private static WC[] mWC;
private boolean mTwoPane;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View v = inflater.inflate(R.layout.fragment_wc_line, container, false);
// Instantiate the list of stations.
mWC = new WC[]{
new WC(R.string.bank, R.string.zone_1, WCBankActivity.class, FragmentWCBank.class),
new WC(R.string.wat, R.string.zone_1, WCWATActivity.class, FragmentWCWAT.class)
};
final ListView listView = (ListView)v.findViewById(R.id.list_wc);
listView.setAdapter(new MyAdapter(getActivity(), mWC));
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if(mTwoPane){
setItemNormal();
View rowView = view;
setItemSelected(rowView);
}
else{
Intent intent = new Intent(getActivity(), mWC[position].activityClass);
String station = mWC[position].station.toString();
intent.putExtra(EXTRA_MESSAGE, station);
startActivity(intent);
}
}
public void setItemSelected(View view){
View rowView = view;
view.setBackgroundColor(Color.parseColor("#66CCCC"));
TextView tv0 = (TextView)rowView.findViewById(R.id.list_item_station);
tv0.setTextColor(Color.parseColor("#000099"));
TextView tv1 = (TextView)rowView.findViewById(R.id.list_item_zone);
tv1.setTextColor(Color.parseColor("#000099"));
}
public void setItemNormal()
{
for (int i=0; i< listView.getChildCount(); i++) {
View v = listView.getChildAt(i);
v.setBackgroundColor(Color.TRANSPARENT);
TextView tv0 = ((TextView) v.findViewById(R.id.list_item_station));
tv0.setTextColor(Color.WHITE);
TextView tv1 = ((TextView) v.findViewById(R.id.list_item_zone));
tv1.setTextColor(Color.parseColor("#B5B5B5"));
}
}
});
return v;
}
static class MyAdapter extends BaseAdapter {
static class ViewHolder {
TextView station;
TextView zone;
}
LayoutInflater inflater;
WC[] mWC;
public MyAdapter(Context contexts, WC[] samples) {
this.mWC = samples;
inflater = LayoutInflater.from(contexts);
}
@Override
public int getCount() {
return mWC.length;
}
@Override
public Object getItem(int position) {
return mWC[position];
}
@Override
public long getItemId(int position) {
return 0;
}
/**set selected position**/
private int selectPosition = -1;
public void setSelectPosition(int position){
if(position!=selectPosition){
selectPosition = position;
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.list_item_dualline, null);
viewHolder = new ViewHolder();
viewHolder.station = (TextView) convertView.findViewById(R.id.list_item_station);
viewHolder.zone = (TextView) convertView.findViewById(R.id.list_item_zone);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.station.setText(mWC[position].station);
viewHolder.zone.setText(mWC[position].getzone());
//change item color
if(position==selectPosition){
convertView.setBackgroundColor(Color.parseColor("#000099"));
viewHolder.station.setTextColor(Color.parseColor("#000099"));
}else {
}
return convertView;
}
}
}
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
public class WCBankActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "Station_key";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_wc_bank);
if (savedInstanceState == null) {
// Get the message from the intent
Intent intent = getIntent();
// Notice to specify the sender Activity for the message
String station = intent.getStringExtra(WCBankActivity.EXTRA_MESSAGE);
FragmentWCBank newFragment = new FragmentWCBank();
FragmentTransaction transaction = this.getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.detail_container, newFragment);
transaction.commit();
}
}
}
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentWCBank extends android.support.v4.app.Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_wc_bank, container, false);
return v;
}
}
FragmentWCBank.java
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class FragmentWCLine extends android.support.v4.app.Fragment {
public final static String EXTRA_MESSAGE = "Station_key";
private class WC {
private CharSequence station;
private CharSequence zone;
private Class<? extends Activity> activityClass;
private Class<? extends android.support.v4.app.Fragment> fragmentClass;
public WC(int stationResId, int zoneResId, Class<? extends Activity> activityClass, Class<? extends android.support.v4.app.Fragment> fragmentClass) {
this.fragmentClass = fragmentClass;
this.activityClass = activityClass;
this.station = getResources().getString(stationResId);
this.zone = getResources().getString(zoneResId);
}
@Override
public String toString() { return station.toString(); }
public String getzone(){ return zone.toString(); }
}
private static WC[] mWC;
private boolean mTwoPane;
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
View v = inflater.inflate(R.layout.fragment_wc_line, container, false);
// Instantiate the list of stations.
mWC = new WC[]{
new WC(R.string.bank, R.string.zone_1, WCBankActivity.class, FragmentWCBank.class),
new WC(R.string.wat, R.string.zone_1, WCWATActivity.class, FragmentWCWAT.class)
};
final ListView listView = (ListView)v.findViewById(R.id.list_wc);
listView.setAdapter(new MyAdapter(getActivity(), mWC));
listView.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if(mTwoPane){
setItemNormal();
View rowView = view;
setItemSelected(rowView);
}
else{
Intent intent = new Intent(getActivity(), mWC[position].activityClass);
String station = mWC[position].station.toString();
intent.putExtra(EXTRA_MESSAGE, station);
startActivity(intent);
}
}
public void setItemSelected(View view){
View rowView = view;
view.setBackgroundColor(Color.parseColor("#66CCCC"));
TextView tv0 = (TextView)rowView.findViewById(R.id.list_item_station);
tv0.setTextColor(Color.parseColor("#000099"));
TextView tv1 = (TextView)rowView.findViewById(R.id.list_item_zone);
tv1.setTextColor(Color.parseColor("#000099"));
}
public void setItemNormal()
{
for (int i=0; i< listView.getChildCount(); i++) {
View v = listView.getChildAt(i);
v.setBackgroundColor(Color.TRANSPARENT);
TextView tv0 = ((TextView) v.findViewById(R.id.list_item_station));
tv0.setTextColor(Color.WHITE);
TextView tv1 = ((TextView) v.findViewById(R.id.list_item_zone));
tv1.setTextColor(Color.parseColor("#B5B5B5"));
}
}
});
return v;
}
static class MyAdapter extends BaseAdapter {
static class ViewHolder {
TextView station;
TextView zone;
}
LayoutInflater inflater;
WC[] mWC;
public MyAdapter(Context contexts, WC[] samples) {
this.mWC = samples;
inflater = LayoutInflater.from(contexts);
}
@Override
public int getCount() {
return mWC.length;
}
@Override
public Object getItem(int position) {
return mWC[position];
}
@Override
public long getItemId(int position) {
return 0;
}
/**set selected position**/
private int selectPosition = -1;
public void setSelectPosition(int position){
if(position!=selectPosition){
selectPosition = position;
}
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder;
if (convertView == null) {
convertView = inflater.inflate(R.layout.list_item_dualline, null);
viewHolder = new ViewHolder();
viewHolder.station = (TextView) convertView.findViewById(R.id.list_item_station);
viewHolder.zone = (TextView) convertView.findViewById(R.id.list_item_zone);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
}
viewHolder.station.setText(mWC[position].station);
viewHolder.zone.setText(mWC[position].getzone());
//change item color
if(position==selectPosition){
convertView.setBackgroundColor(Color.parseColor("#000099"));
viewHolder.station.setTextColor(Color.parseColor("#000099"));
}else {
}
return convertView;
}
}
}
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.ActionBarActivity;
public class WCBankActivity extends ActionBarActivity {
public final static String EXTRA_MESSAGE = "Station_key";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_wc_bank);
if (savedInstanceState == null) {
// Get the message from the intent
Intent intent = getIntent();
// Notice to specify the sender Activity for the message
String station = intent.getStringExtra(WCBankActivity.EXTRA_MESSAGE);
FragmentWCBank newFragment = new FragmentWCBank();
FragmentTransaction transaction = this.getSupportFragmentManager().beginTransaction();
transaction.replace(R.id.detail_container, newFragment);
transaction.commit();
}
}
}
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
public class FragmentWCBank extends android.support.v4.app.Fragment {
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_wc_bank, container, false);
return v;
}
}
分段通货膨胀
fragment\u wc\u bank.xml布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/detail_container">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Bank"
android:id="@+id/textView0"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/fragmentwcline">
<ListView
android:id="@+id/list_wc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="false"
android:layout_centerHorizontal="true"/>
</LinearLayout>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/master_container"
android:name="com.apptacularapps.exitsexpertlondonlite.FragmentMainList"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
fragment\u wc\u line.xml布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/detail_container">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Bank"
android:id="@+id/textView0"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/fragmentwcline">
<ListView
android:id="@+id/list_wc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="false"
android:layout_centerHorizontal="true"/>
</LinearLayout>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/master_container"
android:name="com.apptacularapps.exitsexpertlondonlite.FragmentMainList"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
活动\u main.xml布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/detail_container">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Bank"
android:id="@+id/textView0"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/fragmentwcline">
<ListView
android:id="@+id/list_wc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="false"
android:layout_centerHorizontal="true"/>
</LinearLayout>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/master_container"
android:name="com.apptacularapps.exitsexpertlondonlite.FragmentMainList"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
活动\u main.xml布局(sw600dp)
意外结果
您的活动正在尝试膨胀布局,然后在布局中放置一个片段以代替视图详细信息容器。该布局中不存在detail_容器-要么您忘记添加它,要么您正在膨胀错误的内容。我注意到您正在为片段和主活动扩展R.layout.fragment\u wc\u bank,我猜您在活动中扩展了错误的布局。您的活动正在尝试扩展布局,然后在其中放置片段以代替视图详细信息容器。该布局中不存在detail_容器-要么您忘记添加它,要么您正在膨胀错误的内容。我注意到您正在为片段和主活动扩展R.layout.fragment\u wc\u bank,我猜您在活动中扩展了错误的布局。您的代码事务。替换(R.id.
detail\u container
…现在这可能是正确的UI元素。我假设这是正确的UI。如果是这样,fragment\u wc\u bank
layout xml没有该iddetail\u container
,因此您会得到一个简单的错误。然而activity\u main.xml有该id,我再次假设detail\u container
是您想要的正确UI
建议代码来自:
setContentView(R.layout.fragment_wc_bank);
致:
注:
您的代码是transaction.replace(R.id.
detail\u container
…现在这可能是正确的UI元素。我假设这是正确的UI。如果是这样,fragment\u wc\u bank
layout xml没有该iddetail\u container
,因此您会得到一个简单的错误。然而activity\u main.xml有该id,我再次假设detail\u container
是您想要的正确UI
建议代码来自:
setContentView(R.layout.fragment_wc_bank);
致:
注:
为了澄清,我想对详细信息容器中的R.layout.fragment\u wc\u bank进行充气,mTwoPane为true(平板电脑屏幕)。但是如果mTwoPane为false(非平板电脑屏幕)然后我希望WCBankActivity打开,其中将包含R.layout.fragment\u wc\u bank片段。基于此,建议更改什么代码?我将为WCBankActivity创建一个新的布局,其中包含一个带有id detail\u容器的ViewStub。然后,您的活动应该将其膨胀并将该片段膨胀到其中。然后,您不需要任何其他代码更改,仅更改xml文件并更改为调用setContentView的id。为了澄清,我想在详细信息中膨胀R.layout.fragment\u wc\u bank\u容器中的mTwoPane为true(平板电脑屏幕)。但是如果mTwoPane为false(非平板电脑屏幕)然后我希望WCBankActivity打开,其中将包含R.layout.fragment\u wc\u bank片段。基于此,建议更改什么代码?我将为WCBankActivity创建一个新的布局,其中包含一个带有id detail\u容器的ViewStub。然后,您的活动应该将其膨胀并将该片段膨胀到其中。然后,您不需要任何其他代码更改,仅更改xml文件并更改为调用setContentView的id。请显示导致异常错误的代码。我怀疑是WCBankActivity类中的代码,但我不确定。只需单击错误或调试代码,一次一行,以找出导致错误的代码。我知道我一直在重复此建议。我t是WCBankActivity中的代码。顺便说一句,它是mTwoPane的东西,现在是问题所在,并且从昨天起一直是问题所在。它不会取代详细的片段!您需要显示布局,这意味着至少有2个xml文件,特别是对于fragment_wc_bank。这将节省时间。这个问题与片段代码逻辑无关。这是严格意义上的布局nd GUI ID问题。刚刚为4个布局添加了代码,我认为其中至少有1个是罪魁祸首。请显示导致异常错误的代码。我怀疑是WCBankActivity类中的代码,但我不确定。只需单击错误或调试代码,一次一行,找出导致错误的代码。我知道我一直在重复此建议ice。这是WCBankActivity中的代码。顺便说一句,这是mTwoPane的东西,它现在是问题,从昨天开始就一直是问题。它不会取代细节片段!你需要显示你的布局,这意味着