我的应用程序崩溃与导航抽屉

我正在开发一个应用程序，其中我有一次打开活动（名为“logIn”）后跟我的main_activity。在一些博客的帮助下，我试图在main_activity中实现一个导航抽屉（名为“聊天”）。我的应用程序崩溃与导航抽屉

我Chats.java文件：

public class Chats extends AppCompatActivity { 

String TITLES[] = {"Home","Events","Mail","Shop","Travel"}; 
int ICONS[] = {R.drawable.ic_action_alarms,R.drawable.ic_action_alarms,R.drawable.ic_action_alarms,R.drawable.ic_action_alarms,R.drawable.ic_action_alarms}; 

String NAME = "Karan Nagpal"; 
String EMAIL = "[email protected]"; 
int PROFILE = R.drawable.ic_action_alarms; 

private Toolbar toolbar;        // Declaring the Toolbar Object 

RecyclerView mRecyclerView;       // Declaring RecyclerView 
RecyclerView.Adapter mAdapter;      // Declaring Adapter For Recycler View 
RecyclerView.LayoutManager mLayoutManager;   // Declaring Layout Manager as a linear layout manager 
DrawerLayout Drawer;         // Declaring DrawerLayout 

ActionBarDrawerToggle mDrawerToggle; 


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

    Boolean isFirstTime; 
    SharedPreferences app_preferences = getSharedPreferences("mainuser",MODE_PRIVATE); 
    SharedPreferences.Editor editor = app_preferences.edit(); 

    isFirstTime = app_preferences.getBoolean("isFirstTime", true); 

    if (isFirstTime) { 
     Intent i = new Intent(this, logIn.class); 
     startActivity(i); 
     editor.putBoolean("isFirstTime", false); 
     editor.commit(); 
    } 
    else{ 
     setContentView(R.layout.activity_chats); 
     final String username = app_preferences.getString("username", null); 
     if(username==null){ 
      Intent i = new Intent(this, logIn.class); 
      startActivity(i); 
      editor.putBoolean("isFirstTime", false); 
      editor.commit(); 
     } 
     TextView main_user = (TextView) findViewById(R.id.main_user); 
     main_user.setText(username); 

    } 

    toolbar = (Toolbar) findViewById(R.id.tool_bar); 
    setSupportActionBar(toolbar); 

    mRecyclerView = (RecyclerView) findViewById(R.id.RecyclerView); // Assigning the RecyclerView Object to the xml View 

    mRecyclerView.setHasFixedSize(true);       // Letting the system know that the list objects are of fixed size 

    mAdapter = new MyAdapter(TITLES,ICONS,NAME,EMAIL,PROFILE);  

    mRecyclerView.setAdapter(mAdapter);        

    mLayoutManager = new LinearLayoutManager(this);     

    mRecyclerView.setLayoutManager(mLayoutManager);     


    Drawer = (DrawerLayout) findViewById(R.id.drawer_layout);   
    mDrawerToggle = new ActionBarDrawerToggle(this,Drawer,toolbar,R.string.openDrawer,R.string.closeDrawer){ 

     @Override 
     public void onDrawerOpened(View drawerView) { 
      super.onDrawerOpened(drawerView); 

     } 

     @Override 
     public void onDrawerClosed(View drawerView) { 
      super.onDrawerClosed(drawerView); 
     } 
    }; 

    Drawer.setDrawerListener(mDrawerToggle); 
    mDrawerToggle.syncState();    
    } 
}

登录错误：

10-02 23:53:31.484 2258-2334/com.nagpal.karan.radarchat I/OpenGLRenderer: Initialized EGL, version 1.4 
    10-02 23:53:31.503 2258-2334/com.nagpal.karan.radarchat D/OpenGLRenderer: Enabling debug mode 0 
    10-02 23:53:31.516 2258-2258/com.nagpal.karan.radarchat E/Xposed: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Context android.view.View.getContext()' on a null object reference 
     at tw.fatminmin.xposed.minminguard.blocker.NameBlocking.clearAdViewInLayout(NameBlocking.java:87) 
     at tw.fatminmin.xposed.minminguard.blocker.NameBlocking$3.afterHookedMethod(NameBlocking.java:150) 
     at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:754) 
     at android.view.LayoutInflater.inflate(<Xposed>) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
     at de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative(Native Method) 
     at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:740) 
     at android.view.LayoutInflater.inflate(<Xposed>) 
     at com.nagpal.karan.radarchat.MyAdapter.onCreateViewHolder(MyAdapter.java:98) 
     at com.nagpal.karan.radarchat.MyAdapter.onCreateViewHolder(MyAdapter.java:11) 
     at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:5836) 
     at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5060) 
     at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4970) 
     at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2029) 
     at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1414) 
     at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1377) 
     at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:578) 
     at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3315) 
     at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3124) 
     at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3568) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1221) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) 
     at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) 
     at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2097) 
     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1854) 
     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1069) 
     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5915) 
     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) 
     at android.view.Choreographer.doCallbacks(Choreographer.java:580) 
     at android.view.Choreographer.doFrame(Choreographer.java:550) 
     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessag 
    10-02 23:53:31.517 2258-2258/com.nagpal.karan.radarchat E/Xposed: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.Context android.view.View.getContext()' on a null object reference 
     at tw.fatminmin.xposed.minminguard.blocker.NameBlocking.clearAdViewInLayout(NameBlocking.java:87) 
     at tw.fatminmin.xposed.minminguard.blocker.NameBlocking$3.afterHookedMethod(NameBlocking.java:150) 
     at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:754) 
     at android.view.LayoutInflater.inflate(<Xposed>) 
     at com.nagpal.karan.radarchat.MyAdapter.onCreateViewHolder(MyAdapter.java:98) 
     at com.nagpal.karan.radarchat.MyAdapter.onCreateViewHolder(MyAdapter.java:11) 
     at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:5836) 
     at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5060) 
     at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4970) 
     at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2029) 
     at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1414) 
     at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1377) 
     at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:578) 
     at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3315) 
     at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3124) 
     at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3568) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1221) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) 
     at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) 
     at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2097) 
     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1854) 
     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1069) 
     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5915) 
     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) 
     at android.view.Choreographer.doCallbacks(Choreographer.java:580) 
     at android.view.Choreographer.doFrame(Choreographer.java:550) 
     at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) 
     at android.os.Handler.handleCallback(Handler.java:739) 
     at android.os.Handler.dispatchMessage(Handler.java:95) 
     at android.os.Looper.loop(Looper.java:139) 
     at android.app.ActivityThread.main(ActivityThread.java:5298) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:372) 
     at com.android.internal.os.ZygoteInit$MethodAndAr 
    10-02 23:53:31.517 2258-2258/com.nagpal.karan.radarchat D/AndroidRuntime: Shutting down VM 
    10-02 23:53:31.520 2258-2258/com.nagpal.karan.radarchat E/AndroidRuntime: FATAL EXCEPTION: main 
    Process: com.nagpal.karan.radarchat, PID: 2258 
    android.view.InflateException: Binary XML file line #43: Error inflating class de.hdodenhof.circleimageview.CircleImageView 
     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:757) 
     at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:504) 
     at de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative(Native Method) 
     at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:740) 
     at android.view.LayoutInflater.inflate(<Xposed>) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:414) 
     at de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative(Native Method) 
     at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:740) 
     at android.view.LayoutInflater.inflate(<Xposed>) 
     at com.nagpal.karan.radarchat.MyAdapter.onCreateViewHolder(MyAdapter.java:98) 
     at com.nagpal.karan.radarchat.MyAdapter.onCreateViewHolder(MyAdapter.java:11) 
     at android.support.v7.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:5836) 
     at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5060) 
     at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4970) 
     at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2029) 
     at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1414) 
     at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1377) 
     at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:578) 
     at android.support.v7.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3315) 
     at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:3124) 
     at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:3568) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.support.v4.widget.DrawerLayout.onLayout(DrawerLayout.java:1221) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) 
     at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1703) 
     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1557) 
     at android.widget.LinearLayout.onLayout(LinearLayout.java:1466) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.widget.FrameLayout.layoutChildren(FrameLayout.java:579) 
     at android.widget.FrameLayout.onLayout(FrameLayout.java:514) 
     at android.view.View.layout(View.java:15715) 
     at android.view.ViewGroup.layout(ViewGroup.java:5046) 
     at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2097) 
     at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1854) 
     at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1069) 
     at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5915) 
     at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) 
     at android.view.Choreographer.doCallbacks(Choreographer.java:580) 
     at android.view.Choreographer.doFrame(Choreographer.java:550) 
     at android.view.Choreographer$FrameD 
    10-02 23:53:31.521 2258-2258/com.nagpal.karan.radarchat D/AppTracker: App Event: crash 
    10-02 23:53:31.870 2258-2258/com.nagpal.karan.radarchat I/Process: Sending signal. PID: 2258 SIG: 9

XML文件：

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent" 
android:layout_height="178dp" 
android:background="@drawable/ic_action_alarms" 
android:orientation="vertical" 
android:weightSum="1"> 

<LinearLayout 
    android:layout_width="match_parent" 
    android:layout_height="56dp" 
    android:orientation="vertical" 
    android:layout_alignParentBottom="true" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true"> 
    <TextView 
     android:id="@+id/name" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginLeft="16dp" 
     android:textColor="#ffffff" 
     android:text="Akash Bangad" 
     android:textSize="14sp" 
     android:textStyle="bold" 
     /> 
    <TextView 
     android:id="@+id/email" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textColor="#ffffff" 
     android:layout_marginLeft="16dp" 
     android:layout_marginTop="5dp" 
     android:text="[email protected]" 
     android:textSize="14sp" 
     android:textStyle="normal"/> 
</LinearLayout> 
<de.hdodenhof.circleimageview.CircleImageView 
    android:layout_width="70dp" 
    android:layout_height="70dp" 
    android:src="@drawable/ic_action_alarms" 
    android:layout_marginLeft="16dp" 
    android:layout_marginTop="38dp" 
    android:id="@+id/circleView" 
    />

来源

2016-10-02 Karan Nagpal

setContentView()只叫你else if-else语句的一部分。这意味着如果你的逻辑进入if部分，它会开始一个像你一样的新活动，但是由于你没有完成活动，它会继续进行。

if-else之后，你在做findViewById()。如果没有视图附加到活动，那么这是行不通的。

就叫this.finish()在if部分

只是在顶部取消注释setContentView(R.layout.activity_chats);从else部分删除。

我推荐第二个选项。如果你打算开始一项新的活动，如果你首先附上一个视图，它将不会产生影响。

编辑：

替换此：

<de.hdodenhof.circleimageview.CircleImageView 
    android:layout_width="70dp" 
    android:layout_height="70dp" 
    android:src="@drawable/ic_action_alarms" 
    android:layout_marginLeft="16dp" 
    android:layout_marginTop="38dp" 
    android:id="@+id/circleView" />

有了这个：

<de.hdodenhof.circleimageview.CircleImageView 
    xmlns:app="http://schemas.android.com/apk/res-auto" 
    android:id="@+id/circleView" 
    android:layout_width="70dp" 
    android:layout_height="70dp" 
    android:src="@drawable/ic_action_alarms" 
    android:layout_marginLeft="16dp" 
    android:layout_marginTop="38dp" />

来源

2016-10-02 19:03:27

应用仍然是改变后同一LOGERROR崩溃。 –

实际上，我刚刚在错误日志中看到了其他内容。你能否更新你的问题并向我们展示XML文件？ –

我在我的问题中添加了xml文件，但角色超出了限制。 –

我的应用程序崩溃与导航抽屉

回答

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