OpenCV und Android Studio: "leider App hat aufgehört"

Question

Ich habe versucht, die Android-Kamera mit OpenCV zugreifen. Ich hatte Erfolg bei der Erstellung eines Projekts und es lief ohne Probleme. Ich habe versucht, einen Code aus dem Internet zu verwenden und es in meinem Projekt zu überprüfen. Aber die App stoppte. Es scheint ein RuntimeException-Problem zu sein, aber ich weiß nicht, wie ich es lösen soll. , dass mein Code ist, dass ich von dieser Website kopiert http://people.oregonstate.edu/~robinsti/CS_496/Tutorial/:

mainActivity.java

public class MainActivity extends AppCompatActivity implements View.OnTouchListener, CameraBridgeViewBase.CvCameraViewListener2{ 

private CameraBridgeViewBase mOpenCvCameraView; 
private Mat mRgba; 

@Override 
public void onCreate(Bundle savedInstanceState, PersistableBundle persistentState) { 
    super.onCreate(savedInstanceState, persistentState); 
    setContentView(R.layout.activity_main); 

    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); 
    mOpenCvCameraView = (CameraBridgeViewBase) findViewById(R.id.Surface); 
    mOpenCvCameraView.setVisibility(SurfaceView.VISIBLE); 
    //mOpenCvCameraView.setMaxFrameSize(176, 152); 
    mOpenCvCameraView.setCvCameraViewListener(this); 
} 

private BaseLoaderCallback mLoaderCallBack = new BaseLoaderCallback(this) { 
    @Override 
    public void onManagerConnected(int status) { 
     super.onManagerConnected(status); 
     switch (status) { 
      case LoaderCallbackInterface.SUCCESS: { 
       mOpenCvCameraView.enableView(); 
       mOpenCvCameraView.setOnTouchListener(MainActivity.this); 
      } break; 
      default: { 
       super.onManagerConnected(status); 
      } break; 
     } 
    } 
}; 

@Override 
public void onPause() { 
    super.onPause(); 
    if(mOpenCvCameraView != null) { 
     mOpenCvCameraView.disableView(); 
    } 
} 

@Override 
public void onResume() { 
    super.onResume(); 
    if(mOpenCvCameraView != null) { 
     mOpenCvCameraView.disableView(); 
    } 

} 


@Override 
public void onDestroy() { 
    super.onDestroy(); 

    if(!OpenCVLoader.initDebug()) { 
     OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_1_0,this, mLoaderCallBack); 
    } 
    else { 
     mLoaderCallBack.onManagerConnected(LoaderCallbackInterface.SUCCESS); 
    } 
} 

@Override 
public void onCameraViewStarted(int width, int height) { 

} 

@Override 
public void onCameraViewStopped() { 

} 

@Override 
public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) { 
    mRgba = inputFrame.rgba(); 
    return mRgba; 
} 

@Override 
public boolean onTouch(View view, MotionEvent motionEvent) { 
    return false; 
} 

}

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_width="match_parent" 
android:layout_height="match_parent" 
android:orientation="horizontal" 
xmlns:opencv="http://schemas.android.com/apk/res-auto" 
tools:context="com.tech.te.smartrotate.MainActivity"> 

<org.opencv.android.JavaCameraView 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:id="@+id/Surface" /> 

</RelativeLayout> 

AndroidManifest.xml:

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
package="     "> 
<uses-permission android:name="android.permission.CAMERA"/> 
<uses-feature android:name="android.hardware.camera.autofocus"/> 
<uses-feature android:name="android.hardware.camera.front"/> 
<uses-feature android:name="android.hardware.camera.front.autofocus"/> 

<application 
    android:allowBackup="true" 
    android:icon="@mipmap/ic_launcher" 
    android:label="@string/app_name" 
    android:supportsRtl="true" 
    android:theme="@android:style/Theme.NoTitleBar.Fullscreen">  <!--android:theme="@style/AppTheme">--> 
    <activity android:name=".MainActivity"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 

      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity> 
</application> 

Logcat:

07-29 15:54:44.066 31188-31188/com.tech.te.app W/art: Failed to find OatDexFile for DexFile /data/data/com.tech.te.app/files/instant-run/dex/slice-slice_2-classes.dex (canonical path /data/data/com.tech.te.app/files/instant-run/dex/slice-slice_2-classes.dex) with checksum 0x7f90e189 in OatFile /data/data/com.tech.te.app/cache/slice-slice_2-classes.dex 
07-29 15:54:45.836 31188-31195/com.tech.te.app W/art: Suspending all threads took: 19.602ms 
07-29 15:54:45.946 31188-31188/com.tech.te.app D/DisplayManager: DisplayManager() 
07-29 15:54:46.376 31188-31188/com.tech.te.app W/art: Before Android 4.1, method android.graphics.PorterDuffColorFilter android.support.graphics.drawable.VectorDrawableCompat.updateTintFilter(android.graphics.PorterDuffColorFilter, android.content.res.ColorStateList, android.graphics.PorterDuff$Mode) would have incorrectly overridden the package-private method in android.graphics.drawable.Drawable 
07-29 15:54:46.596 31188-31188/com.tech.te.app E/VdcInflateDelegate: Exception while inflating 
                      java.lang.RuntimeException: Failed to resolve attribute at index 1 
                       at android.content.res.TypedArray.twGetColorStateList(TypedArray.java:437) 
                       at android.content.res.TypedArray.getColorStateList(TypedArray.java:419) 
                       at android.support.graphics.drawable.VectorDrawableCompat.updateStateFromTypedArray(VectorDrawableCompat.java:518) 
                       at android.support.graphics.drawable.VectorDrawableCompat.inflate(VectorDrawableCompat.java:472) 
                       at android.support.graphics.drawable.VectorDrawableCompat.createFromXmlInner(VectorDrawableCompat.java:436) 
                       at android.support.v7.widget.AppCompatDrawableManager$VdcInflateDelegate.createFromXmlInner(AppCompatDrawableManager.java:708) 
                       at android.support.v7.widget.AppCompatDrawableManager.loadDrawableFromDelegates(AppCompatDrawableManager.java:348) 
                       at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:188) 
                       at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:181) 
                       at android.support.v7.widget.AppCompatDrawableManager.checkVectorDrawableSetup(AppCompatDrawableManager.java:689) 
                       at android.support.v7.widget.AppCompatDrawableManager.getDrawable(AppCompatDrawableManager.java:186) 
                       at android.support.v7.widget.TintTypedArray.getDrawableIfKnown(TintTypedArray.java:77) 
                       at android.support.v7.app.AppCompatDelegateImplBase.(AppCompatDelegateImplBase.java:83) 
                       at android.support.v7.app.AppCompatDelegateImplV7.(AppCompatDelegateImplV7.java:146) 
                       at android.support.v7.app.AppCompatDelegateImplV11.(AppCompatDelegateImplV11.java:28) 
                       at android.support.v7.app.AppCompatDelegateImplV14.(AppCompatDelegateImplV14.java:41) 
                       at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:193) 
                       at android.support.v7.app.AppCompatDelegate.create(AppCompatDelegate.java:173) 
                       at android.support.v7.app.AppCompatActivity.getDelegate(AppCompatActivity.java:511) 
                       at android.support.v7.app.AppCompatActivity.onCreate(AppCompatActivity.java:71) 
                       at android.app.Activity.performCreate(Activity.java:6112) 
                       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1117) 
                       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2609) 
                       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2721) 
                       at android.app.ActivityThread.access$900(ActivityThread.java:168) 
                       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) 
                       at android.os.Handler.dispatchMessage(Handler.java:102) 
                       at android.os.Looper.loop(Looper.java:135) 
                       at android.app.ActivityThread.main(ActivityThread.java:5753) 
                       at java.lang.reflect.Method.invoke(Native Method) 
                       at java.lang.reflect.Method.invoke(Method.java:372) 
                       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405) 
                       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200) 
07-29 15:54:46.596 31188-31202/com.tech.te.app I/art: Background sticky concurrent mark sweep GC freed 6652(1091KB) AllocSpace objects, 1(20KB) LOS objects, 14% free, 5MB/6MB, paused 36.125ms total 277.107ms 
07-29 15:54:46.616 31188-31202/com.tech.te.app I/art: Background sticky concurrent mark sweep GC freed 274(43KB) AllocSpace objects, 0(0B) LOS objects, 14% free, 5MB/6MB, paused 7.366ms total 16.707ms 
07-29 15:54:46.706 31188-31188/com.tech.te.app D/AndroidRuntime: Shutting down VM 
07-29 15:54:46.716 31188-31188/com.tech.te.app E/AndroidRuntime: FATAL EXCEPTION: main 
                     Process: com.tech.te.app, PID: 31188 
                     java.lang.RuntimeException: Unable to start activity ComponentInfo{com.tech.te.app/com.tech.te.app.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. 
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2656) 
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2721) 
                      at android.app.ActivityThread.access$900(ActivityThread.java:168) 
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393) 
                      at android.os.Handler.dispatchMessage(Handler.java:102) 
                      at android.os.Looper.loop(Looper.java:135) 
                      at android.app.ActivityThread.main(ActivityThread.java:5753) 
                      at java.lang.reflect.Method.invoke(Native Method) 
                      at java.lang.reflect.Method.invoke(Method.java:372) 
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405) 
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200) 
                      Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. 
                      at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:343) 
                      at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:312) 
                      at android.support.v7.app.AppCompatDelegateImplV7.onPostCreate(AppCompatDelegateImplV7.java:167) 
                      at android.support.v7.app.AppCompatActivity.onPostCreate(AppCompatActivity.java:98) 
                      at android.app.Instrumentation.callActivityOnPostCreate(Instrumentation.java:1198) 
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2638) 
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2721)  
                      at android.app.ActivityThread.access$900(ActivityThread.java:168)  
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1393)  
                      at android.os.Handler.dispatchMessage(Handler.java:102)  
                      at android.os.Looper.loop(Looper.java:135)  
                      at android.app.ActivityThread.main(ActivityThread.java:5753)  
                      at java.lang.reflect.Method.invoke(Native Method)  
                      at java.lang.reflect.Method.invoke(Method.java:372)  
                      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)  
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)  
07-29 15:54:50.366 31188-31188/com.tech.te.app I/Process: Sending signal. PID: 31188 SIG: 9 

Vielen Dank.

Answer 1

Sie laden OpenCV auf Ihrem OnDestroy, das sollten Sie nicht tun.

@Override 
public void onDestroy() { 
    super.onDestroy(); 

    if(!OpenCVLoader.initDebug()) { 
     OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_3_1_0,this, mLoaderCallBack); 
    } 
    else { 
     mLoaderCallBack.onManagerConnected(LoaderCallbackInterface.SUCCESS); 
    } 
} 

Außerdem sollten Sie initDebug und initAsync nicht gleichzeitig verwenden.

InitDebug ist für die statische Initialisierung, müssen Sie die Bibliotheken in Ihrer apk haben.

initAsync ist mit installiertem OpenCV Manager zu verwenden.

für statische Initialisierung, gibt es eine gute Antwort Here

onResume, onPause und onDestroy so gehen sollte:

@Override 
protected void onResume() 
{ 
    super.onResume(); 
    _javaCameraView.enableView(); 
} 

@Override 
protected void onPause() { 
    if (_javaCameraView != null) { 
     _javaCameraView.disableView(); 
    } 
    super.onPause(); 
} 

@Override 
public void onDestroy() { 
    if (_javaCameraView != null) { 
     _javaCameraView.disableView(); 
    } 
    super.onDestroy(); 
} 

Einige Informationen über statische Initialisierung:

public class MainActivity extends Activity implements CameraBridgeViewBase.CvCameraViewListener2 { 

private static boolean openCVStarted = false; 
JavaCameraView _javaCameraView; 

    static{ 
     System.loadLibrary("opencv_java3"); 


     if(!OpenCVLoader.initDebug()) { 
      Log.d("ERROR", "Unable to load OpenCV"); 
      openCVStarted = false; 
     } else { 
      Log.d("SUCCESS", "OpenCV loaded"); 
      openCVStarted = true; 
     } 
    } 

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

     _javaCameraView = (JavaCameraView)findViewById(R.id.cameraView); 
     //_javaCameraView.setMaxFrameSize(size.width, size.height); 
     _javaCameraView.setVisibility(SurfaceView.VISIBLE); 
     _javaCameraView.setCvCameraViewListener(this); 
     _javaCameraView.enableView(); 
     _javaCameraView.enableFpsMeter(); 
    } 

    @Override 
    public Mat onCameraFrame(CameraBridgeViewBase.CvCameraViewFrame inputFrame) 
    { 
     _imgBgrTemp = inputFrame.rgba(); 
     // Work with the frame here 
     return _imgBgrTemp; 
    }