{}解決 - 安卓ViewPager與碎片不會推出

我一直試圖讓這個工作現在某個時候，一切我嘗試已經失敗，所以這是我的最後一招..{}解決 - 安卓ViewPager與碎片不會推出

所以基本上我開發一個應用程序，允許你在屏幕之間滑動將只有兩個屏幕，我會在之間滑動。當應用程序啓動一個res/splash_layout.xml屏幕將出現（或者點擊一個按鈕來啓動休息或自動切換）。那麼你應該可以在res/maps_layout.xml和res/markers_layout.xml之間滑動。但對於一些奇怪的原因的應用程序不會推出

任何意見或解決方案將不勝感激問候喬

下面的源代碼：

RES/splash_layout.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:orientation="vertical" > 

    <android.support.v4.view.ViewPager 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:id="@+id/pager" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" /> 

</RelativeLayout>

res/maps_layout.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="#00FF00" 
    android:orientation="vertical" > 

</RelativeLayout>

RES/markers_layout.xml

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:background="#0000FF" 
    android:orientation="vertical" > 

</RelativeLayout>

然後我們有SRC代碼

的src/PagerAdapter.java

package joe.wit.app.locophoto; 

import java.util.List; 

import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentManager; 
import android.support.v4.app.FragmentPagerAdapter; 

public class PagerAdapter extends FragmentPagerAdapter { 



    private List<Fragment> fragments; 

    public PagerAdapter(FragmentManager fm, List<Fragment> fragments) { 
     super(fm); 
     // TODO Auto-generated constructor stub 
     this.fragments = fragments; 
    } 

    @Override 
    public Fragment getItem(int arg0) { 
     // TODO Auto-generated method stub 
     return this.fragments.get(arg0); 
    } 

    @Override 
    public int getCount() { 
     // TODO Auto-generated method stub 
     return this.fragments.size(); 
    } 

}

的src/Splash.java

package joe.wit.app.locophoto; 

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.RelativeLayout; 

public class Splash extends Fragment { 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) { 
     if(container == null){ 
      return null; 
     } 

     return (RelativeLayout) inflater.inflate(R.layout.splash_layout, container); 
    } 



}

的src/Markers.java

package joe.wit.app.locophoto; 

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.LinearLayout; 

public class Markers extends Fragment { 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) { 
     if(container == null){ 
      return null; 
     } 

     return (LinearLayout) inflater.inflate(R.layout.markers_layout, container); 
    } 



}

SRC/Map.java

package joe.wit.app.locophoto; 

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.view.LayoutInflater; 
import android.view.View; 
import android.view.ViewGroup; 
import android.widget.LinearLayout; 

public class Map extends Fragment { 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
      Bundle savedInstanceState) { 
     if(container == null){ 
      return null; 
     } 

     return (LinearLayout) inflater.inflate(R.layout.map_layout, 
       container, false); 
    } 



}

SRC/MainActivity。java的

package joe.wit.app.locophoto; 

import java.util.List; 
import java.util.Vector; 

import android.os.Bundle; 
import android.support.v4.app.Fragment; 
import android.support.v4.app.FragmentActivity; 
import android.support.v4.view.ViewPager; 




public class MainActivity extends FragmentActivity { 

    private PagerAdapter mPagerAdapter; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.splash_layout); 
     inistialisePaging(); 
    } 

    private void inistialisePaging() { 
     List<Fragment> fragments = new Vector<Fragment>(); 
     fragments.add(Fragment.instantiate(this, Map.class.getName())); 
     fragments.add(Fragment.instantiate(this, Markers.class.getName())); 

     mPagerAdapter =new PagerAdapter(this.getSupportFragmentManager(), fragments); 

     ViewPager pager = (ViewPager) findViewById(R.id.pager); 
     pager.setAdapter(mPagerAdapter);   
    } 

}

最新logcat的錯誤

02-10 10:42:44.045: E/AndroidRuntime(21334): FATAL EXCEPTION: main 
02-10 10:42:44.045: E/AndroidRuntime(21334): Process: joe.wit.app.locophoto, PID: 21334 
02-10 10:42:44.045: E/AndroidRuntime(21334): java.lang.ClassCastException: android.support.v4.view.ViewPager cannot be cast to android.widget.RelativeLayout 
02-10 10:42:44.045: E/AndroidRuntime(21334): at joe.wit.app.locophoto.Markers.onCreateView(Markers.java:19) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.Fragment.performCreateView(Fragment.java:1786) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:947) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1126) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1489) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:486) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.view.ViewPager.populate(ViewPager.java:1073) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.view.ViewPager.populate(ViewPager.java:919) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.View.measure(View.java:16660) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.View.measure(View.java:16660) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5150) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.View.measure(View.java:16660) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5150) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.View.measure(View.java:16660) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5150) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2421) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.View.measure(View.java:16660) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2058) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1189) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1374) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1076) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5905) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:807) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.Choreographer.doCallbacks(Choreographer.java:601) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.Choreographer.doFrame(Choreographer.java:562) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:791) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.os.Handler.handleCallback(Handler.java:733) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.os.Handler.dispatchMessage(Handler.java:95) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.os.Looper.loop(Looper.java:157) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at android.app.ActivityThread.main(ActivityThread.java:5633) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at java.lang.reflect.Method.invokeNative(Native Method) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at java.lang.reflect.Method.invoke(Method.java:515) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:896) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:712) 
02-10 10:42:44.045: E/AndroidRuntime(21334): at dalvik.system.NativeStart.main(Native Method)

來源

2015-02-09 Irishdiablo

請解釋一下，完整，準確地說，「應用程序不會推出」的意思。你崩潰了嗎？如果是這樣，當您檢查LogCat並查看Java堆棧跟蹤時，您看到了什麼？ – CommonsWare 2015-02-09 16:12:53

https://beingsouthafricando.files.wordpress.com/2010/12/image001.png – 2015-02-09 16:14:00

對不起我的壞人 – Irishdiablo 2015-02-09 16:18:18

在你Map和Markers類，取代

return (LinearLayout) inflater.inflate(R.layout.map_layout, 
      container, false);

與

return (RelativeLayout) inflater.inflate(R.layout.map_layout, 
      container, false);

此外，在Markers類，您使用

inflater.inflate(R.layout.markers_layout, container, false);

，而不是

inflater.inflate(R.layout.markers_layout, container);

基本上，ViewGroup根必須不充當RelativeLayout的母公司，因此false參數必須傳遞是非常重要的。

試試這個。這應該工作。

來源

2015-02-09 16:21:40

@Irishdiablo：你有沒有試過這個？你仍然面臨一個問題？ – 2015-02-09 17:19:49

是的，我已經添加了這個修復，但不幸的是我仍然得到一個fata例外 – Irishdiablo 2015-02-10 09:20:31

http://pastebin.com/WS7XLuRV – Irishdiablo 2015-02-10 09:21:55

Markers.java和Map.java將錯誤的類轉換爲佈局。

改變這一點：

return (LinearLayout) inflater.inflate(R.layout.markers_layout, container);

到：

return (RelativeLayout) inflater.inflate(R.layout.markers_layout, container);

來源

2015-02-09 16:22:28 jvrodrigues

是的，我將它添加到他們兩個，但我仍然得到相同的logcat錯誤... – Irishdiablo 2015-02-09 16:36:48

現在應該稍有不同，請重新檢查。 – jvrodrigues 2015-02-09 16:39:20

目前步行到我的車將檢查當我回家..乾杯的這個幫助 – Irishdiablo 2015-02-09 16:44:52

{}解決 - 安卓ViewPager與碎片不會推出

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