Android中Camera拍照时报takePicture failed错误。

Log日志
07-12 09:01:59.238: E/AndroidRuntime(5780): Process: cyyz.cn, PID: 5780
07-12 09:01:59.238: E/AndroidRuntime(5780): java.lang.RuntimeException: takePicture failed
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.hardware.Camera.native_takePicture(Native Method)
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.hardware.Camera.takePicture(Camera.java:1363)
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.hardware.Camera.takePicture(Camera.java:1289)
07-12 09:01:59.238: E/AndroidRuntime(5780): at cyyz.cn.jy.activity.TakePhotoActivity.onAutoFocus(TakePhotoActivity.java:671)
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.hardware.Camera$EventHandler.handleMessage(Camera.java:1018)
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.os.Handler.dispatchMessage(Handler.java:102)
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.os.Looper.loop(Looper.java:136)
07-12 09:01:59.238: E/AndroidRuntime(5780): at android.app.ActivityThread.main(ActivityThread.java:5336)
07-12 09:01:59.238: E/AndroidRuntime(5780): at java.lang.reflect.Method.invokeNative(Native Method)
07-12 09:01:59.238: E/AndroidRuntime(5780): at java.lang.reflect.Method.invoke(Method.java:515)
07-12 09:01:59.238: E/AndroidRuntime(5780): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:871)
07-12 09:01:59.238: E/AndroidRuntime(5780): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:687)
07-12 09:01:59.238: E/AndroidRuntime(5780): at dalvik.system.NativeStart.main(Native Method)

我的onAutoFocus方法是:
@Override
public void onAutoFocus(boolean success, Camera camera) {
// TODO Auto-generated method stub

    Log.d("onAutoFocus", "onAutoFocus="+success);
    setImg();

    if (success) {
        myCamera.takePicture(shutter, raw, jpeg);
    } else {
        System.out.println("failer");
    }
    isClicked = false;

}

没看到关键的报错地方, 不过可以看下 你的myCamera 对象实例化了吗 ? 判断下 是否为null

  private BroadcastReceiver receiver  = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            //图片处理完成,拍照完成或者是自动抓取图片重新验证
            boolean  result = intent.getBooleanExtra("result", false);

            if(intentSer != null){
                stopService(intentSer); 
            }

            if(result ){
                //自动拍照
                isPreview = false;
                myCamera.autoFocus((AutoFocusCallback) TakePhotoActivity.this);

            }
            else{
                isPreview = true;
            }
            Log.d("isPreview", "isPreview_receiver="+isPreview);
        }
    };
    myCamera 对象应该是不会为空的,不然应该就报空指针了。
    我就是启动了一个service,当满足某些条件时发广播,然后调用自动对焦的方法,