使用RecyclerView时应用程序崩溃

此应用程序用于在屏幕上显示回收站视图，并在启动时崩溃。的logcat的：使用RecyclerView时应用程序崩溃

:16.836 8259-8259/com.robyn.frog E/AndroidRuntime: FATAL EXCEPTION: main 
                  Process: com.robyn.frog, PID: 8259 
                  java.lang.OutOfMemoryError: Failed to allocate a 512174316 byte allocation with 16777120 free bytes and 227MB until OOM 
                   at dalvik.system.VMRuntime.newNonMovableArray(Native Method) 
                   at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method) 
                   at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:609) 
                   at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:444) 
                   at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:988) 
                   at android.content.res.Resources.loadDrawableForCookie(Resources.java:2596) 
                   at android.content.res.Resources.loadDrawable(Resources.java:2503) 
                   at android.content.res.Resources.getDrawable(Resources.java:864) 
                   at android.content.Context.getDrawable(Context.java:403) 
                   at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:353) 
                   at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:201) 
                   at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:189) 
                   at android.support.v7.content.res.AppCompatResources.getDrawable(AppCompatResources.java:100) 
                   at android.support.v7.widget.AppCompatImageHelper.loadFromAttributes(AppCompatImageHelper.java:54) 
                   at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:66) 
                   at android.support.v7.widget.AppCompatImageView.<init>(AppCompatImageView.java:56) 
                   at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:106) 
                   at android.support.v7.app.AppCompatDelegateImplV9.createView(AppCompatDelegateImplV9.java:1026) 
                   at android.support.v7.app.AppCompatDelegateImplV9.onCreateView(AppCompatDelegateImplV9.java:1083) 
                   at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:725) 
                   at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) 
                   at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
                   at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
                   at com.robyn.frog.RecyclerFragment$FrogHolder.<init>(RecyclerFragment.java:0) 
                   at com.robyn.frog.RecyclerFragment$FrogAdapter.onCreateViewHolder(RecyclerFragment.java:72) 
                   at com.robyn.frog.RecyclerFragment$FrogAdapter.onCreateViewHolder(RecyclerFragment.java:63) 
                   at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6411) 
                   at android.support.v7.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5597) 
                   at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5482) 
                   at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5478) 
                   at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2215) 
                   at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1542) 
                   at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1502) 
                   at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:595) 
                   at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3625) 
                   at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3354) 
                   at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3886) 
                   at android.view.View.layout(View.java:15737) 
                   at android.view.ViewGroup.layout(ViewGroup.java:5041) 
                   at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
                   at android.widget.LinearLayout.layoutHorizontal(LinearLayout.java:1692) 
                   at android.widget.LinearLayout.onLayout(LinearLayout.java:1468) 
                   at android.view.View.layout(View.java:15737) 
                   at android.view.ViewGroup.layout(ViewGroup.java:5041) 
                   at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
                   at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
                   at android.view.View.layout(View.java:15737) 
                   at android.view.ViewGroup.layout(ViewGroup.java:5041) 
                   at android.support.v7.widget.ActionBarOverlayLayout.onLayout(ActionBarOverlayLayout.java:434) 
                  at android.view.View.lay

主要活动：

public class MainActivity extends AppCompatActivity { 

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

    FragmentManager fm = getSupportFragmentManager(); 
    Fragment fragment = fm.findFragmentById(R.id.fragment_container); 

    if (fragment == null) { 
     fragment = new RecyclerFragment(); 
     fm.beginTransaction().add(R.id.fragment_container, fragment).commit(); 
    } 
}

}

回收站片段，容器中的适配器和viewholder。添加使用适配器的updateUI方法后，应用程序崩溃。

public class RecyclerFragment extends Fragment { 
private RecyclerView mRecyclerView; 
private FrogAdapter mAdapter; 
@Nullable 
@Override 
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.recycler, container, false); 
    mRecyclerView = (RecyclerView) view.findViewById(R.id.recycler_view); 
    mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity())); 

    updateUI(); 
    return view; 
} 

private void updateUI() { 
    Pond pond = Pond.get(getActivity()); 
    List<Frog> frogs = pond.getFrogs(); 
    if (mAdapter == null) { 
     mAdapter = new FrogAdapter(frogs); 
     mRecyclerView.setAdapter(mAdapter); 
    } else { 
     mAdapter.notifyDataSetChanged(); 
    } 
} 

private class FrogHolder extends RecyclerView.ViewHolder implements View.OnClickListener { 
    private TextView mName; 
    private TextView mWord; 

    public FrogHolder(LayoutInflater inflater, ViewGroup parent) { 
     super(inflater.inflate(R.layout.item, parent, false)); 
     itemView.setOnClickListener(this); 

     mName = (TextView) itemView.findViewById(R.id.name); 
     mWord = (TextView) itemView.findViewById(R.id.word); 
    } 

    @Override 
    public void onClick(View v) { 

    } 
} 


private class FrogAdapter extends RecyclerView.Adapter<FrogHolder>{ 
    private List<Frog> mFrogs; 

    public FrogAdapter(List<Frog> frogs) { 
     mFrogs = frogs; 
    } 
    @Override 
    public FrogHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     LayoutInflater layoutInflater = LayoutInflater.from(getActivity()); 
     return new FrogHolder(layoutInflater, parent); 
    } 

    @Override 
    public void onBindViewHolder(FrogHolder holder, int position) { 
     Frog frog = mFrogs.get(position); 
     holder.mName.setText(frog.getName()); 
     holder.mWord.setText(frog.getWord()); 
    } 

    @Override 
    public int getItemCount() { 
     return mFrogs.size(); 
    } 
} 
}

这个类弥补了回收视图列表显示：

public class Pond { 

public class Frog { 
    private String mName; 
    private String mWord; 

    public String getName() { 
     return mName; 
    } 

    public void setName(String name) { 
     mName = name; 
    } 

    public String getWord() { 
     return mWord; 
    } 

    public void setWord(String word) { 
     mWord = word; 
    } 
} 

private static Pond sPond; 

private List<Frog> mFrogs; 

public static Pond get(Context context) { 
    if (sPond == null) { 
     sPond = new Pond(context); 
    } 
    return sPond; 
} 

private Pond(Context context) { 
    mFrogs = new ArrayList<>(); 
    for (int i = 0; i < 100; i++) { 
     Frog frog = new Frog(); 
     frog.setName("Frog #" + i); 
     frog.setWord("qqq"); 
     mFrogs.add(frog); 
    } 
} 

public List<Frog> getFrogs() { 
    return mFrogs; 
}

}

布局文件： activity_main.xml中

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:orientation="horizontal" 
    android:id="@+id/fragment_container" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    tools:context="com.robyn.frog.MainActivity"> 

</LinearLayout>

recycler.xml

<?xml version="1.0" encoding="utf-8"?> 
<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android" 
       android:id="@+id/recycler_view" 
       android:layout_width="match_parent" 
       android:layout_height="match_parent" 
       android:orientation="vertical"> 
</android.support.v7.widget.RecyclerView>

item.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
       xmlns:app="http://schemas.android.com/apk/res-auto" 
       android:layout_width="match_parent" 
       android:layout_height="wrap_content" 
       android:orientation="horizontal"> 
    <ImageView 
     android:id="@+id/imageView" 
     android:layout_width="50dp" 
     android:layout_height="50dp" 
     android:layout_margin="10dp" 
     app:srcCompat="@drawable/frog"/> 
    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_margin="10dp" 
     android:orientation="vertical"> 
     <TextView 
      android:id="@+id/name" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="TextView"/> 
     <TextView 
      android:id="@+id/word" 
      android:layout_width="match_parent" 
      android:layout_height="wrap_content" 
      android:text="TextView"/> 
    </LinearLayout> 
</LinearLayout>

来源

2017-04-17 Robin

此问题引起的Android时开始处理位图。主要原因是内存空间不足，而且垃圾收集器不能释放一些空间。

您的这个情况两种解决方案：

largeHeap

转到您的清单文件，并添加

机器人：largeHeap = “真”

android：hardwareAccelerated =“false”

内部应用标签例如

<application 
    android:allowBackup="true" 
    android:hardwareAccelerated="false" 
    android:largeHeap="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@style/AppTheme">

使用库等通用图像装载机

https://github.com/nostra13/Android-Universal-Image-Loader

来源

2017-04-17 22:37:29

这有助于。谢谢！ – Robin

欢迎您:)！ –

使用RecyclerView时应用程序崩溃

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