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copied!<p>I found the same problem. Maybe we use the front camera. I find that there is another to use the camera and find code blow. </p> <p>AndroidManifest.xml: </p> <pre><code> </application> <uses-sdk android:minSdkVersion="8" /> <uses-permission android:name="android.permission.CAMERA" /> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-feature android:name="android.hardware.camera"/> <uses-feature android:name="android.hardware.camera.autofocus"/></manifest> </code></pre> <p>Source code:</p> <pre><code>import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.Calendar; import java.util.Locale; import android.app.Activity; import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.PixelFormat; import android.hardware.Camera; import android.os.Bundle; import android.text.format.DateFormat; import android.util.Log; import android.view.KeyEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.Window; import android.view.WindowManager; import android.widget.FrameLayout; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity { private CameraView cv; private Camera mCamera = null; private Bitmap mBitmap = null; public Camera.PictureCallback pictureCallback = new Camera.PictureCallback() { public void onPictureTaken(byte[] data, Camera camera) { Log.i("yao","onPictureTaken"); Toast.makeText(getApplicationContext(), "saving……", Toast.LENGTH_LONG).show(); mBitmap = BitmapFactory.decodeByteArray(data, 0, data.length); File file = new File("/sdcard/YY"+ new DateFormat().format("yyyyMMdd_hhmmss", Calendar.getInstance(Locale.CHINA)) + ".jpg"); try { file.createNewFile(); BufferedOutputStream os = new BufferedOutputStream(new FileOutputStream(file)); mBitmap.compress(Bitmap.CompressFormat.PNG, 100, os); os.flush(); os.close(); Toast.makeText(getApplicationContext(), "save completed", Toast.LENGTH_LONG).show(); } catch (IOException e) { e.printStackTrace(); } } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN); getWindow().setFormat(PixelFormat.TRANSLUCENT); FrameLayout fl = new FrameLayout(this); cv = new CameraView(this); fl.addView(cv); TextView tv = new TextView(this); tv.setText("take a picture"); fl.addView(tv); setContentView(fl); } public boolean onKeyDown(int keyCode, KeyEvent event) { Log.i("yao","MainActivity.onKeyDown"); if (keyCode == KeyEvent.KEYCODE_CAMERA) { if (mCamera != null) { Log.i("yao","mCamera.takePicture"); mCamera.takePicture(null, null, pictureCallback); } } return cv.onKeyDown(keyCode, event); } class CameraView extends SurfaceView { private SurfaceHolder holder = null; public CameraView(Context context) { super(context); Log.i("yao","CameraView"); holder = this.getHolder(); holder.addCallback(new SurfaceHolder.Callback() { @Override public void surfaceDestroyed(SurfaceHolder holder) { mCamera.stopPreview(); mCamera.release(); mCamera = null; } @Override public void surfaceCreated(SurfaceHolder holder) { mCamera = Camera.open(); try { mCamera.setPreviewDisplay(holder); } catch (IOException e) { mCamera.release(); mCamera = null; } } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { Camera.Parameters parameters = mCamera.getParameters(); parameters.setPictureFormat(PixelFormat.JPEG); parameters.setPreviewSize(854, 480); parameters.setFocusMode("auto"); parameters.setPictureSize(2592, 1456); mCamera.setParameters(parameters); mCamera.startPreview(); } }); holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); } } } </code></pre>

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