setParameters例外......无法使用相机

Question

嗨，大家好 我使用下面的代码从我的应用程序访问照相机： -

public void onCreate(Bundle savedInstanceState) { 

    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    isPreviewRunning = false; 
    surface = (SurfaceView)findViewById(R.id.surface); 
    holder = surface.getHolder(); 
    holder.addCallback(this); 


} 
@Override 
public void surfaceChanged(SurfaceHolder holder, int format, int width, 
     int height) { 
    if (isPreviewRunning) { 
      camera.stopPreview(); 
     } 

    Camera.Parameters p = camera.getParameters(); 
    p.setPreviewSize(480, 800); 
    p.setPictureFormat(PixelFormat.JPEG); 
    camera.setParameters(p); 

    try { 
     camera.setPreviewDisplay(holder); 

    } catch (IOException e) { 
     // TODO Auto-generated catch block 
     e.printStackTrace(); 
    } 
    camera.startPreview(); 
    isPreviewRunning=true; 
} 
@Override 
public void surfaceCreated(SurfaceHolder holder) { 
    // TODO Auto-generated method stub 
    camera = Camera.open(); 
} 
@Override 
public void surfaceDestroyed(SurfaceHolder holder) { 
    // TODO Auto-generated method stub 
    camera.stopPreview(); 
    camera.release(); 
    camera=null; 
} 

我得到强制关闭，并在日志猫错误的是以下几点： -

04-13 15:21:36.979: ERROR/AndroidRuntime(14583): FATAL EXCEPTION: main 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583): java.lang.RuntimeException: setParameters failed 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.hardware.Camera.native_setParameters(Native Method) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.hardware.Camera.setParameters(Camera.java:655) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at org.mycamera.mycamera.surfaceChanged(mycamera.java:44) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.SurfaceView.updateWindow(SurfaceView.java:546) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.SurfaceView.dispatchDraw(SurfaceView.java:339) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.drawChild(ViewGroup.java:1646) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.drawChild(ViewGroup.java:1646) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.View.draw(View.java:6742) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.widget.FrameLayout.draw(FrameLayout.java:352) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.drawChild(ViewGroup.java:1648) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.drawChild(ViewGroup.java:1646) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1375) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.View.draw(View.java:6742) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.widget.FrameLayout.draw(FrameLayout.java:352) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1872) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewRoot.draw(ViewRoot.java:1422) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewRoot.performTraversals(ViewRoot.java:1167) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1744) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.os.Handler.dispatchMessage(Handler.java:99) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.os.Looper.loop(Looper.java:144) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at android.app.ActivityThread.main(ActivityThread.java:4937) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at java.lang.reflect.Method.invokeNative(Native Method) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at java.lang.reflect.Method.invoke(Method.java:521) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 
04-13 15:21:36.979: ERROR/AndroidRuntime(14583):  at dalvik.system.NativeStart.main(Native Method) 

Answer 1

你将不得不使用支持图片的大小一个：

Camera.Parameters p = camera.getParameters(); 
List<Size> sizes = p.getSupportedPictureSizes(); 
// Choose any one you want among sizes 
size = sizes.get(0); 
p.setPictureSize(size.width, size.height); 
camera.setParameters(p);