附上 應(yīng)用代碼

{

private Camera mBackCamera;

private Camera mFrontCamera;

private BackCameraPreview mBackCamPreview;

private FrontCameraPreview mFrontCamPreview;

public static String TAG = "DualCamActivity";

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_dual_cam);

Log.i(TAG, "Number of cameras: " + Camera.getNumberOfCameras());

// Create an instance of Camera

mBackCamera = getCameraInstance(0);

// Create back camera Preview view and set it as the content of our activity.

mBackCamPreview = new BackCameraPreview(this, mBackCamera);

FrameLayout backPreview = (FrameLayout) findViewById(R.id.back_camera_preview);

backPreview.addView(mBackCamPreview);

mFrontCamera = getCameraInstance(1);

mFrontCamPreview = new FrontCameraPreview(this, mFrontCamera);

FrameLayout frontPreview = (FrameLayout) findViewById(R.id.front_camera_preview);

frontPreview.addView(mFrontCamPreview);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.dual_cam, menu);

return true;

}

public static Camera getCameraInstance(int cameraId){

Camera c = null;

try {

c = Camera.open(cameraId); // attempt to get a Camera instance

}

catch (Exception e){

// Camera is not available (in use or does not exist)

Log.e(TAG,"Camera " + cameraId + " not available! " + e.toString() );

}

return c; // returns null if camera is unavailable

}

}

總結(jié)

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