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发表于 2017-5-31 18:52:09
只看该作者
沙发
附上 应用代码
{
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
}
} |
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