使用 addView() 时我的应用程序崩溃

Posted 2023-04-14

【中文标题】使用 addView() 时我的应用程序崩溃

【英文标题】：My app crashes when using addView()

【发布时间】：2014-03-15 00:27:20

【问题描述】：

我是 android 的菜鸟。每当我使用 ViewGroup addView() 方法时，我的应用程序总是崩溃，但在我使用 Activity addContentView() 方法时可以正常工作。

我想使用 addView() 而不是 addContentView() 的原因是我希望能够在不需要时删除布局，而 addContentView() 是不可能的。

代码： MainActivity.java

protected void onCreate(Bundle savedInstanceState) 
    super.onCreate(savedInstanceState);

    //CAMERA VIEW
    setContentView(R.layout.activity_main);
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

    surfaceView = (SurfaceView)findViewById(R.id.surfaceview);
    surfaceHolder = surfaceView.getHolder();
    surfaceHolder.addCallback(this);
    surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

    ViewGroup rootView = (ViewGroup) findViewById(R.layout.activity_main);
    LayoutInflater mLayoutInflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);

    //GRAPHICS VIEW
    glSurfaceView = new GLSurfaceView(this);
    glSurfaceView.setEGLConfigChooser(8, 8, 8, 8, 16, 0);
    glSurfaceView.getHolder().setFormat(PixelFormat.TRANSLUCENT);
    glSurfaceView.setRenderer(new GLRenderer());
    //crash
    //rootView.addView(glSurfaceView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    //not crash
    addContentView(glSurfaceView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    glSurfaceView.setZOrderMediaOverlay(true);

    //CONTROLS VIEW
    View ctrlLayout = mLayoutInflater.inflate(R.layout.activity_controls, rootView);
        //crash
        //rootView.addView(ctrlLayout, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
        //not crash
    addContentView(ctrlLayout, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    ctrlLayout.bringToFront();
    textView = (TextView)ctrlLayout.findViewById(R.id.text);
    rtTextView = (TextView)ctrlLayout.findViewById(R.id.rt_text);
    btnStart = (Button)ctrlLayout.findViewById(R.id.button1);

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_
    android:layout_
    tools:context=".MainActivity" >

    <SurfaceView
        android:id="@+id/surfaceview"
        android:layout_
        android:layout_ />

</RelativeLayout>

activity_controls.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_
    android:layout_ >

    <TextView
        android:id="@+id/text"
        android:layout_
        android:layout_
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="14dp"
        android:text="@string/hello_world" />

    <TextView
        android:id="@+id/rt_text"
        android:layout_
        android:layout_
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true"
        android:layout_marginRight="18dp"
        android:layout_marginTop="14dp"
        android:text="@string/str_rttext" />

    <TextView
        android:id="@+id/title"
        android:layout_
        android:layout_
        android:layout_alignTop="@+id/rt_text"
        android:layout_centerHorizontal="true"
        android:text="@string/str_title"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <Button
        android:id="@+id/button1"
        android:layout_
        android:layout_
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/btn_start" />

</RelativeLayout>

编辑：

我按照 FD_ 的建议更改了我的代码

ViewGroup rootView = mLayoutInflater.inflate(R.layout.activity_main, null); 现在，当我在 onCreate 函数末尾调用 setContentView(rootView) 时，它会崩溃。

这里是日志：

02-16 08:00:28.142: I/dalvikvm(2153): threadid=1: stack overflow on call to Landroid/view/View;.isLayoutDirectionInherited:Z
02-16 08:00:28.142: I/dalvikvm(2153):   method requires 12+20+4=36 bytes, fp is 0xb02fe320 (32 left)
02-16 08:00:28.152: I/dalvikvm(2153):   expanding stack end (0xb02fe300 to 0xb02fe000)
02-16 08:00:28.152: I/dalvikvm(2153): Shrank stack (to 0xb02fe300, curFrame is 0xb0303ec4)
02-16 08:00:28.152: D/AndroidRuntime(2153): Shutting down VM
02-16 08:00:28.152: W/dalvikvm(2153): threadid=1: thread exiting with uncaught exception (group=0xb1aeab90)
02-16 08:00:28.932: D/dalvikvm(2153): GC_FOR_ALLOC freed 117K, 6% free 3266K/3448K, paused 80ms, total 86ms
02-16 08:00:29.382: D/dalvikvm(2153): GC_FOR_ALLOC freed 356K, 11% free 3423K/3844K, paused 46ms, total 47ms
02-16 08:00:29.402: E/AndroidRuntime(2153): FATAL EXCEPTION: main
02-16 08:00:29.402: E/AndroidRuntime(2153): Process: com.example.previewcamera, PID: 2153
02-16 08:00:29.402: E/AndroidRuntime(2153): java.lang.***Error
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5713)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetResolvedLayoutDirection(ViewGroup.java:5714)
02-16 08:00:29.402: E/AndroidRuntime(2153):     at android.view.ViewGroup.resetRes
02-16 08:00:29.632: D/dalvikvm(2153): GC_FOR_ALLOC freed 548K, 16% free 3386K/4000K, paused 54ms, total 55ms

【参考方案1】：

对于最终在这里尝试使用自定义视图追踪该错误的其他人，请仔细检查您是否正确充气。以下更改解决了我的问题。

错误：

View view = inflate(getContext(), R.layout.foo, this);
addView(view);

工作正常：

View view = inflate(getContext(), R.layout.foo, null);
addView(view);

【讨论】：

实际使用View view = inflate(getContext(), R.layout.foo, this, false);是正确的方法。

【参考方案2】：

您必须先致电setContentView()，然后才能在您的Activity 中使用findViewById()。此外，findViewById() 返回包含在内容视图中并由作为参数传递的 id 值标识的视图，因此传递布局资源永远不会起作用。

另一种选择是使用 LayoutInflater 自己膨胀视图：

LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
ViewGroup rootView  = inflater.inflate(R.layout.main, null);

【讨论】：

完成了这项工作。我的应用程序不再崩溃，但现在 addView() 没有显示任何内容。有什么建议吗？

我已经尝试将 glSurfaceView 和 ctrlView 的布局参数更改为 WRAP_CONTENT 但仍然无法正常工作。

如果您使用上述方法（LayoutInflater），您将不得不调用 setContentView(rootView);在 onCreate 结束时。

是的，我正在做你的方法。我试图调用 setContentView(rootView) 但是当我调用它时我的应用程序崩溃了。

您似乎正在添加一个 View 作为其自身的子项，但我无法告诉您在哪里，因为我没有代码。

【参考方案3】：

我在使用 attachToRoot = true 时遇到了同样的问题

final View submitButton = LayoutInflater.from(this).inflate
            (R.layout.view_button_simple, rootView, true);

我不得不把它改成

final View submitButton = LayoutInflater.from(this).inflate
            (R.layout.view_button_simple, rootView, false);

【参考方案4】：

Accessign 错误的布局也会导致应用崩溃。检查您是否在弹出布局中添加了具有相同 id 的布局