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Не срабатывает событие surfaceChanged
21.07.2017, 21:37. Показов 353. Ответов 0
Скажите пожалуйста почему у меня не срабатывает событие surfaceChanged?
MainActivity :
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| public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback {
static final Integer CAMERA = 0x1;
static final Integer WRITE_EXST = 0x2;
static final Integer READ_EXST = 0x3;
SurfaceView camView; // drawing camera preview using this variable
SurfaceHolder surfaceHolder; // variable to hold surface for surfaceView which means display
boolean camCondition = false; // conditional variable for camera preview checking and set to false
Button cap; // image capturing button
public Camera camera; // camera class variable
int height;
int width;
boolean mBounded;
ShotService mServer;
@Override
protected void onStart() {
super.onStart();
Intent mIntent = new Intent(this, ShotService.class);
bindService(mIntent, mConnection, BIND_AUTO_CREATE);
};
ServiceConnection mConnection = new ServiceConnection() {
public void onServiceDisconnected(ComponentName name) {
Toast.makeText(MainActivity.this, "Service is disconnected", Toast.LENGTH_SHORT).show();
mBounded = false;
mServer = null;
}
public void onServiceConnected(ComponentName name, IBinder service) {
Toast.makeText(MainActivity.this, "Service is connected", Toast.LENGTH_SHORT).show();
mBounded = true;
ShotService.LocalBinder mLocalBinder = (ShotService.LocalBinder)service;
mServer = mLocalBinder.getServerInstance();
camera = mServer.camera;
Display display = getWindowManager().getDefaultDisplay();
width = display.getWidth(); // deprecated
height = display.getHeight(); // deprecated
getWindow().setFormat(PixelFormat.UNKNOWN);
camView = (SurfaceView) findViewById(R.id.camerapreview);
askForPermission(Manifest.permission.CAMERA,CAMERA);
askForPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE,WRITE_EXST);
askForPermission(Manifest.permission.READ_EXTERNAL_STORAGE,READ_EXST);
// getWindow() to get window and set it's pixel format which is UNKNOWN
getWindow().setFormat(PixelFormat.UNKNOWN);
// refering the id of surfaceView
camView = (SurfaceView) findViewById(R.id.camerapreview);
// refering button id
cap = (Button) findViewById(R.id.button2);
// getting access to the surface of surfaceView and return it to surfaceHolder
surfaceHolder = camView.getHolder();
// adding call back to this context means MainActivity
surfaceHolder.addCallback(MainActivity.this);
// to set surface type
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_NORMAL);
// click event on button
cap.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
}
};
@Override
protected void onStop() {
super.onStop();
if(mBounded) {
unbindService(mConnection);
mBounded = false;
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
int value;
public void surfaceCreated(SurfaceHolder surfaceHolder) {
value = this.getResources().getConfiguration().orientation;
if (value == Configuration.ORIENTATION_PORTRAIT) {
//orientation = "Portrait";
camera.setDisplayOrientation(90); // setting camera preview orientation
}
if (value == Configuration.ORIENTATION_LANDSCAPE) {
camera.setDisplayOrientation(0); // setting camera preview orientation
//orientation = "Landscape";
}
}
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub
// stop the camera
if(camCondition){
camera.stopPreview(); // stop preview using stopPreview() method
camCondition = false; // setting camera condition to false means stop
}
// condition to check whether your device have camera or not
if (camera != null){
try {
Camera.Parameters parameters = camera.getParameters();
//parameters.setColorEffect(Camera.Parameters.FOCUS_MODE_AUTO); //applying effect on camera
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
camera.setParameters(parameters); // setting camera parameters
camera.setPreviewDisplay(surfaceHolder); // setting preview of camera
camera.startPreview(); // starting camera preview
camCondition = true; // setting camera to true which means having camera
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
} |
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И собственно сам Service :
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public class ShotService extends Service {
final String LOG_TAG = "myLogs";
public Camera camera; // camera class variable
public boolean pause;
Integer degrees = 0;
private int rotate;
public int onStartCommand(Intent intent, int flags, int startId) {
Log.d(LOG_TAG, "onStartCommand");
return super.onStartCommand(intent, flags, startId);
}
public void onDestroy() {
super.onDestroy();
Log.d(LOG_TAG, "onDestroy");
}
IBinder mBinder = new LocalBinder();
@Override
public IBinder onBind(Intent intent) {
camera = Camera.open(); // opening camera
//STEP #1: Get rotation degrees
Camera.CameraInfo info = new Camera.CameraInfo();
Camera.getCameraInfo(Camera.CameraInfo.CAMERA_FACING_BACK, info);
Display display = ((WindowManager) getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
int rotation = display.getRotation();
switch (rotation) {
case Surface.ROTATION_0: degrees = 0; break; //Natural orientation
case Surface.ROTATION_90: degrees = 90; break; //Landscape left
case Surface.ROTATION_180: degrees = 180; break;//Upside down
case Surface.ROTATION_270: degrees = 270; break;//Landscape right
}
rotate = (info.orientation - degrees + 360) % 360;
return mBinder;
}
public class LocalBinder extends Binder {
public ShotService getServerInstance() {
return ShotService.this;
}
}
public void start() {
Runnable runnable = new Runnable() {
public void run() {
while (pause == false) {
Camera.Parameters params = camera.getParameters();
params.setRotation(rotate);
camera.setParameters(params);
// calling a method of camera class takepicture by passing one picture callback interface parameter
camera.takePicture(null, null, null, mPictureCallback);
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
};
Thread thread = new Thread(runnable);
thread.start();
}
public Integer imgcount=0;
Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() {
public void onPictureTaken(byte[] data, Camera c) {
FileOutputStream outStream = null;
try {
// Directory and name of the photo. We put system time
// as a postfix, so all photos will have a unique file name.
outStream = new FileOutputStream("/sdcard/new_" + (imgcount++).toString() +".jpg");
outStream.write(data);
outStream.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
new Handler(Looper.getMainLooper()).post(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(), "shorted", Toast.LENGTH_LONG).show();
}
}); }
}
};
public void Focus() {
camera.autoFocus(null);
}
} |
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