I have 2 AF Focus Distance can be control by button and an On Off switch for flash.
Why IF ELSE for flashligh in updatePreview() will affect focus mode to auto? When I comment out that part (IF ELSE for flashligh), AF mode and Focus distance work fine with the btnFocus.
How to solve this while still can allow user to turn on and off the flashlight?
private float focusDistance = 0;
private int flashSwitch = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textureView = (TextureView)findViewById(R.id.textureView);
//From Java 1.4 , you can use keyword 'assert' to check expression true or false
assert textureView != null;
textureView.setSurfaceTextureListener(textureListener);
btnFocus = (Button)findViewById(R.id.btnFocus);
btnFlash = (Button)findViewById(R.id.btnFlash);
btnFocus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
changeFocus();
}
});
btnFlash.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View view) {
Flash();
}
});
}
private void Flash() {
if(cameraDevice == null)
return;
if(flashSwitch == 0 ) {
Toast.makeText(MainActivity.this, "Flash Turn On ", Toast.LENGTH_SHORT).show();
flashSwitch = 1;
}
else{
Toast.makeText(MainActivity.this, "Flash Turn Off ", Toast.LENGTH_SHORT).show();
flashSwitch = 0;
}
createCameraPreview();
}
private void changeFocus() {
if(cameraDevice == null)
return;
if(focusDistance == 0 )
focusDistance = 10;
else
focusDistance = 0;
Toast.makeText(MainActivity.this, "Focus Change "+ focusDistance, Toast.LENGTH_SHORT).show();
createCameraPreview();
}
private void createCameraPreview() {
try{
SurfaceTexture texture = textureView.getSurfaceTexture();
assert texture != null;
texture.setDefaultBufferSize(imageDimension.getWidth(),imageDimension.getHeight());
Surface surface = new Surface(texture);
captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
captureRequestBuilder.addTarget(surface);
cameraDevice.createCaptureSession(Arrays.asList(surface), new CameraCaptureSession.StateCallback() {
#Override
public void onConfigured(#NonNull CameraCaptureSession cameraCaptureSession) {
if(cameraDevice == null)
return;
cameraCaptureSessions = cameraCaptureSession;
updatePreview();
}
#Override
public void onConfigureFailed(#NonNull CameraCaptureSession cameraCaptureSession) {
Toast.makeText(MainActivity.this, "Changed", Toast.LENGTH_SHORT).show();
}
},null);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
If you uncomment part the problem will come out when turn on flash and change focus.
private void updatePreview() {
if(cameraDevice == null)
Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
try{
// if you uncomment this part the problem will come out
// if(flashSwitch == 0){
// captureRequestBuilder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);
// }
// else{
// captureRequestBuilder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_TORCH);
// }
captureRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE,CaptureRequest.CONTROL_AF_MODE_OFF);
captureRequestBuilder.set(CaptureRequest.LENS_FOCUS_DISTANCE, focusDistance);
cameraCaptureSessions.setRepeatingRequest(captureRequestBuilder.build(),null,mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
Expected Output
Can manually turn on and off flash without affecting focus mode.
I think that your problem might be on the way you set the requests.
You should create the preview first and only once, the way you have it, you are creating a preview everytime you switch flash and/or focus.
I suggest to create the preview in onStart with some defaults like:
focusDistance = 0;
flashSwitch = CaptureRequest.FLASH_MODE_OFF;
And then in Flash() and changeFocus() instead of calling createCameraPreview() you call updatePreview(), your update preview would look something like this:
private void updatePreview() {
if(cameraDevice == null)
Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
try{
captureRequestBuilder.set(CaptureRequest.FLASH_MODE, flashSwitch);
captureRequestBuilder.set(CaptureRequest.LENS_FOCUS_DISTANCE, focusDistance);
cameraCaptureSessions.setRepeatingRequest(captureRequestBuilder.build(),null,mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
In updatePreview(), you're sending multiple capture requests to cameraCaptureSessions before settling all keys in captureRequestBuilder. Trying setting all keys first and then sending one repeating capture request.
private void updatePreview() {
if(cameraDevice == null)
Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
try{
if(flashSwitch == 0){
captureRequestBuilder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_OFF);
}
else{
captureRequestBuilder.set(CaptureRequest.FLASH_MODE, CaptureRequest.FLASH_MODE_TORCH);
}
captureRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE,CaptureRequest.CONTROL_AF_MODE_OFF);
captureRequestBuilder.set(CaptureRequest.LENS_FOCUS_DISTANCE, focusDistance);
cameraCaptureSessions.setRepeatingRequest(captureRequestBuilder.build(),null,mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
Related
Currently i'm implementing the in app update feature from android. I'm using the immediate update method, the problem that I'm facing is that when the UI prompting the user to update shows and the user does not click the update button instead they click the cross button. The UI for the app update just closes and user can continue using the app.
What I want is that when user click the cross button the app immediately closes, until user updates the app then they can use the app as usual. I also uses the java code for the android development.
public class LoginActivity extends AppCompatActivity {
private LoginViewModel loginViewModel;
public static final String MyPREFERENCES = "LoginPrefs" ;
public static final String Name = "nameKey";
public static final String User = "userKey";
public static final String con = "closed";
public static String error = "";
public static int userFlag = 0;
SharedPreferences sharedpreferences;
SharedPreferences.Editor editor;
public TextInputEditText usernameEditText;
public TextInputEditText passwordEditText;
private AppUpdateManager mAppUpdateManager;
private int RC_APP_UPDATE = 999;
private int inAppUpdateType;
private com.google.android.play.core.tasks.Task<AppUpdateInfo> appUpdateInfoTask;
private InstallStateUpdatedListener installStateUpdatedListener;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
loginViewModel = ViewModelProviders.of(this, new LoginViewModelFactory())
.get(LoginViewModel.class);
usernameEditText = findViewById(R.id.user);
passwordEditText = findViewById(R.id.pass);
final Button loginButton = findViewById(R.id.submitBTN);
final TextInputLayout userL = findViewById(R.id.userL);
final TextInputLayout passL = findViewById(R.id.passL);
final JellyToggleButton jtb = findViewById(R.id.jtb);
// Creates instance of the manager.
mAppUpdateManager = AppUpdateManagerFactory.create(this);
// Returns an intent object that you use to check for an update.
appUpdateInfoTask = mAppUpdateManager.getAppUpdateInfo();
//lambda operation used for below listener
//For flexible update
installStateUpdatedListener = installState -> {
if (installState.installStatus() == InstallStatus.DOWNLOADED) {
popupSnackbarForCompleteUpdate();
}
};
mAppUpdateManager.registerListener(installStateUpdatedListener);
inAppUpdateType = AppUpdateType.IMMEDIATE; //1
inAppUpdate();
if(userFlag==1){
jtb.setChecked(true);
}
userL.setHint("Enter username");
sharedpreferences = getSharedPreferences(MyPREFERENCES, MODE_PRIVATE);
loginViewModel.getLoginFormState().observe(this, new Observer<LoginFormState>() {
#Override
public void onChanged(#Nullable LoginFormState loginFormState) {
if (loginFormState == null) {
return;
}
loginButton.setEnabled(loginFormState.isDataValid());
if (loginFormState.getUsernameError() != null) {
usernameEditText.setError(getString(loginFormState.getUsernameError()));
loginButton.startAnimation(AnimationUtils.loadAnimation(LoginActivity.this,R.anim.shake));
}
if (loginFormState.getPasswordError() != null) {
passwordEditText.setError(getString(loginFormState.getPasswordError()));
loginButton.startAnimation(AnimationUtils.loadAnimation(LoginActivity.this,R.anim.shake));
}
}
});
loginViewModel.getLoginResult().observe(this, new Observer<LoginResult>() {
#Override
public void onChanged(#Nullable LoginResult loginResult) {
if (loginResult == null) {
return;
}
if (loginResult.getError() != null) {
showLoginFailed(loginResult.getError());
}
if (loginResult.getSuccess() != null) {
updateUiWithUser(loginResult.getSuccess());
Intent i = new Intent(LoginActivity.this, user_dashboard.class);
startActivity(i);
}
setResult(Activity.RESULT_OK);
//Complete and destroy login activity once successful
}
});
TextWatcher afterTextChangedListener = new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// ignore
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// ignore
}
#Override
public void afterTextChanged(Editable s) {
loginViewModel.loginDataChanged(usernameEditText.getText().toString(),
passwordEditText.getText().toString());
}
};
usernameEditText.addTextChangedListener(afterTextChangedListener);
passwordEditText.addTextChangedListener(afterTextChangedListener);
passwordEditText.setOnEditorActionListener(new TextView.OnEditorActionListener() {
#Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
loginViewModel.login(usernameEditText.getText().toString(),
passwordEditText.getText().toString());
}
return false;
}
});
loginButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if(userFlag==0) {
loginViewModel.login(usernameEditText.getText().toString(),
passwordEditText.getText().toString());
getStaffData();
}
else if(userFlag==1){
loginWorker();
}
}
});
jtb.setOnStateChangeListener(new JellyToggleButton.OnStateChangeListener() {
#Override
public void onStateChange(float process, State state, JellyToggleButton jtb) {
if (state.equals(State.LEFT)) {
userL.setHint("Enter username");
error = "Username cannot be empty";
userFlag = 0;
}
if (state.equals(State.RIGHT)) {
userL.setHint("Enter badge ID");
error = "Badge ID cannot be empty";
userFlag = 1;
}
}
});
}
#Override
protected void onDestroy() {
mAppUpdateManager.unregisterListener(installStateUpdatedListener);
finishAndRemoveTask();
super.onDestroy();
}
#Override
protected void onResume() {
try {
mAppUpdateManager.getAppUpdateInfo().addOnSuccessListener(appUpdateInfo -> {
if (appUpdateInfo.updateAvailability() ==
UpdateAvailability.DEVELOPER_TRIGGERED_UPDATE_IN_PROGRESS) {
// If an in-app update is already running, resume the update.
try {
mAppUpdateManager.startUpdateFlowForResult(
appUpdateInfo,
inAppUpdateType,
this,
RC_APP_UPDATE);
} catch (IntentSender.SendIntentException e) {
e.printStackTrace();
}
}
});
mAppUpdateManager.getAppUpdateInfo().addOnSuccessListener(appUpdateInfo -> {
//For flexible update
if (appUpdateInfo.installStatus() == InstallStatus.DOWNLOADED) {
popupSnackbarForCompleteUpdate();
}
});
} catch (Exception e) {
e.printStackTrace();
}
super.onResume();
}
#Override //For flexible update
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RC_APP_UPDATE) {
//when user clicks update button
if (resultCode == RESULT_OK) {
Toast.makeText(LoginActivity.this, "App download starts...", Toast.LENGTH_LONG).show();
} else if (resultCode == RESULT_CANCELED) {
//if you want to request the update again just call checkUpdate()
Toast.makeText(LoginActivity.this, "App download canceled.", Toast.LENGTH_LONG).show();
} else if (resultCode == RESULT_IN_APP_UPDATE_FAILED) {
Toast.makeText(LoginActivity.this, "App download failed.", Toast.LENGTH_LONG).show();
}
}
}
private void updateUiWithUser(LoggedInUserView model) {
String welcome = getString(R.string.welcome);
// TODO : initiate successful logged in experience
Toast.makeText(getApplicationContext(), welcome, Toast.LENGTH_LONG).show();
}
private void showLoginFailed(#StringRes Integer errorString) {
Toast.makeText(getApplicationContext(), errorString, Toast.LENGTH_SHORT).show();
}
private void getStaffData() {
String username = usernameEditText.getText().toString();
APIInterface apiInterface3 = APIClient.getClient().create(APIInterface.class);
Call<loginList> call3 = apiInterface3.staffData(username);
call3.enqueue(new Callback<loginList>() {
#Override
public void onResponse(Call<loginList> call, Response<loginList> response) {
loginList list = response.body();
if (list!=null && list.getStatusCode()==1) { //response received.
if(list.getStaffList().size()>0){
Log.d("check-in", list.getStatusCode() + " " + list.getStaffList().get(0).getName());
Toast.makeText(LoginActivity.this,"Logged in",Toast.LENGTH_SHORT).show();
final String name = list.getStaffList().get(0).getName();
final String badge = list.getStaffList().get(0).getBadge();
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putString(Name,name);
editor.putString(User,badge);
editor.putInt(con,1);
editor.apply();
}
else if(list.getStaffList().size()==0){
}
}
}
#Override
public void onFailure(Call<loginList> call, Throwable t) {
Log.d("fail",t.toString());
}
});
}
private void loginWorker(){
String username = usernameEditText.getText().toString();
String password = passwordEditText.getText().toString();
APIInterface apiInterface3 = APIClient.getClient().create(APIInterface.class);
Call<loginList> call3 = apiInterface3.loginWorker(username,password);
call3.enqueue(new Callback<loginList>() {
#Override
public void onResponse(Call<loginList> call, Response<loginList> response) {
loginList list = response.body();
Log.d("response", response.body().toString());
if (list!=null && list.getStatusCode()==1) { //response received.
if(list.getLoginList().size()>0){
Log.d("check-in", list.getStatusCode() + " " + list.getLoginList().get(0).getName());
Toast.makeText(LoginActivity.this,"Logged in",Toast.LENGTH_SHORT).show();
List<login> item = response.body().getLoginList();
final String name = list.getLoginList().get(0).getName();
SharedPreferences.Editor editor = sharedpreferences.edit();
editor.putString(Name,name);
editor.putInt(con,1);
editor.apply();
}
String welcome = getString(R.string.welcome);
Toast.makeText(getApplicationContext(), welcome, Toast.LENGTH_SHORT).show();
Intent i = new Intent(LoginActivity.this, user_dashboard.class);
startActivity(i);
}
else
Toast.makeText(LoginActivity.this, "wrong ID or password",Toast.LENGTH_SHORT).show();
}
#Override
public void onFailure(Call<loginList> call, Throwable t) {
Log.d("fail",t.toString());
}
});
editor = sharedpreferences.edit();
editor.putString(User, username);
editor.commit();
}
#Override
public void onBackPressed() {
new MaterialAlertDialogBuilder(LoginActivity.this,R.style.MyDialogTheme)
.setTitle("Exit")
.setMessage("Confirm to exit?")
.setBackground(getDrawable(R.drawable.alert_dialog))
// Specifying a listener allows you to take an action before dismissing the dialog.
// The dialog is automatically dismissed when a dialog button is clicked.
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Continue with delete
finishAffinity();
}
})
.setNegativeButton(android.R.string.no, null)
.show();
}
private void inAppUpdate() {
try {
// Checks that the platform will allow the specified type of update.
appUpdateInfoTask.addOnSuccessListener(new OnSuccessListener<AppUpdateInfo>() {
#Override
public void onSuccess(AppUpdateInfo appUpdateInfo) {
if (appUpdateInfo.updateAvailability() == UpdateAvailability.UPDATE_AVAILABLE
// For a flexible update, use AppUpdateType.FLEXIBLE
&& appUpdateInfo.isUpdateTypeAllowed(inAppUpdateType)) {
// Request the update.
try {
mAppUpdateManager.startUpdateFlowForResult(
// Pass the intent that is returned by 'getAppUpdateInfo()'.
appUpdateInfo,
// Or 'AppUpdateType.FLEXIBLE' for flexible updates.
inAppUpdateType,
// The current activity making the update request.
LoginActivity.this,
// Include a request code to later monitor this update request.
RC_APP_UPDATE);
} catch (IntentSender.SendIntentException ignored) {
}
}
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
private void popupSnackbarForCompleteUpdate() {
try {
Snackbar snackbar =
Snackbar.make(
findViewById(R.id.coordinatorL),
"An update has just been downloaded.\nRestart to update",
Snackbar.LENGTH_INDEFINITE);
snackbar.setAction("INSTALL", view -> {
if (mAppUpdateManager != null){
mAppUpdateManager.completeUpdate();
}
});
snackbar.setActionTextColor(getResources().getColor(R.color.orange));
snackbar.show();
} catch (Resources.NotFoundException e) {
e.printStackTrace();
}
}
}
The image I borrowed from google, on the left image as can be seen there is a cross button on top right user can click to close the update process
The most important point I will emphasize is that you should not force users to update the app until it is absolutely necessary (like some security issues etc). Forcing updates to users is considered a very bad user experience.
To the question you asked, you have the answer in your question itself. If you check the code you have something like this in your onActivityResult method-
if (requestCode == RC_APP_UPDATE) {
//when user clicks update button
if (resultCode == RESULT_OK) {
Toast.makeText(LoginActivity.this, "App download starts...", Toast.LENGTH_LONG).show();
} else if (resultCode == RESULT_CANCELED) {
//if you want to request the update again just call checkUpdate()
Toast.makeText(LoginActivity.this, "App download canceled.", Toast.LENGTH_LONG).show();
} else if (resultCode == RESULT_IN_APP_UPDATE_FAILED) {
Toast.makeText(LoginActivity.this, "App download failed.", Toast.LENGTH_LONG).show();
}
}
In case when the user cancels resultCode == RESULT_CANCELED or the update fails resultCode == RESULT_IN_APP_UPDATE_FAILED, you can take whatever action you want. You can finish the activity or whatever is suitable in your situation.
Please I want to know how to set my MediaPlayer to playback continuously without stopping when activity screen rotates? The challenge I'm having now is that when playing is in progress and I happen to tilt the screen the music stops and will require another action to have it play again.
this is the part of which plays the music in my Activity
// setting up media players
public void play(View v) {
if (player == null) {
//then here, I sent the position of the chosen song in the intent extras.
//the get back the extra
int position = 0;
try{
position=getIntent().getIntExtra("soundfile",0);
}catch (Exception e)
{
e.printStackTrace();
}
String fileToPlay="song_"+position;
player = MediaPlayer.create(this, position);
Toast.makeText(this, "Hymn Tune Playing", Toast.LENGTH_SHORT ).show();
soundSeekBar = (SeekBar) findViewById(R.id.seekBar1);
soundSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
#Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (fromUser){
player.seekTo(progress);
}
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
soundSeekBar.setProgress(player.getCurrentPosition());
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
player.getCurrentPosition();
}
});
player.setLooping(true);
player.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
#Override
public void onCompletion(MediaPlayer mp) {
}
});
}
player.start();
Toast.makeText(this, "Playing Continues...", Toast.LENGTH_SHORT ).show();
soundThread = new Thread(this);
soundThread.start();
}
public void pause(View v) {
if (player != null) {
player.pause();
Toast.makeText(this, "Hymn Tune Paused", Toast.LENGTH_SHORT ).show();
}
}
public void stop(View v) {
stopPlayer();
}
private void stopPlayer() {
if (player != null) {
player.release();
player = null;
Toast.makeText(this, "Hymn Tune Stoped", Toast.LENGTH_SHORT ).show();
}
}
#Override
protected void onStop() {
super.onStop();
stopPlayer();
}
#Override
public void run() {
int currentPosition = 0;
int soundTotal = player.getDuration();
soundSeekBar.setMax(soundTotal);
while (player != null && currentPosition < soundTotal){
try {
Thread.sleep(300);
currentPosition = player.getCurrentPosition();
}
catch (InterruptedException soundException){
return;
}
catch (Exception otherException){
return;
}
soundSeekBar.setProgress(currentPosition);
}
}
#Override
public void onPointerCaptureChanged(boolean hasCapture) {
}
You must move your playback code to background service, as those will run constantly while activity is stopped and restarted during tilting. Check out extensive guide to services here
https://developer.android.com/guide/components/services
I have created an android application using the DJI SDK. I have followed the instruction, and basically copied the code from the DJI Sample Code (https://github.com/dji-sdk/Mobile-SDK-Android/blob/master/Sample%20Code/app/src/main/java/com/dji/sdk/sample/demo/camera/LiveStreamView.java), since it was working properly.
After launching a Connectivity activity, which registers the SDK and connects to the Mavic 2 Zoom drone, another activity comes, which handles live streaming to a RTMP server. When using the sample code, streaming to the same RTMP server, it has no delay, but when using my app, it has a good 15 second delay. I can't figure out why, I'm using the same components. The only difference is that I'm setting the camera focus to the max, but I did the same in the Sample Code, so it shouldn't cause any problems. Also using the same VideoFeedView as in the Sample.
public class MainActivity extends Activity implements View.OnClickListener {
private static final String TAG = MainActivity.class.getName();
private String liveShowUrl = "rtmp://192.168.00.00/live";
private VideoFeedView primaryVideoFeedView;
private VideoFeedView fpvVideoFeedView;
private EditText showUrlInputEdit;
private Button startLiveShowBtn;
private Button enableVideoEncodingBtn;
private Button disableVideoEncodingBtn;
private Button stopLiveShowBtn;
private Button soundOnBtn;
private Button soundOffBtn;
private Button isLiveShowOnBtn;
private Button showInfoBtn;
private Button showLiveStartTimeBtn;
private Button showCurrentVideoSourceBtn;
private Button changeVideoSourceBtn;
private Camera camera;
private LiveStreamManager.OnLiveChangeListener listener;
private LiveStreamManager.LiveStreamVideoSource currentVideoSource = LiveStreamManager.LiveStreamVideoSource.Primary;
private CommonCallbacks.CompletionCallback focusSetCompletionCallback = new CommonCallbacks.CompletionCallback() {
#Override
public void onResult(DJIError djiError) {
Log.d(TAG, "Camera focus is set to manual");
Toast.makeText(getApplicationContext(), "camera focus set to manual", Toast.LENGTH_SHORT).show();
}
};
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initUI();
initListener();
camera = DronifyApplication.getCameraInstance();
camera.getFocusRingValueUpperBound(new CommonCallbacks.CompletionCallbackWith<Integer>() {
#Override
public void onSuccess(Integer integer) {
Toast.makeText(getApplicationContext(), "UPPER IS: " + integer.toString(),Toast.LENGTH_LONG).show();
Log.d(TAG, "UPPER IS: " + integer.toString());
}
#Override
public void onFailure(DJIError djiError) {
Toast.makeText(getApplicationContext(), "UPPER IS NOT SUPPORTED", Toast.LENGTH_LONG).show();
}
});
camera.setFocusMode(SettingsDefinitions.FocusMode.MANUAL, focusSetCompletionCallback);
if (camera.isAdjustableFocalPointSupported()) {
camera.setFocusRingValue(65, new CommonCallbacks.CompletionCallback() {
#Override
public void onResult(DJIError djiError) {
Log.i(TAG, "set focus ring value to max");
Toast.makeText(getApplicationContext(), "set focus ring value to max", Toast.LENGTH_SHORT).show();
}
});
}
Intent intent = new Intent(getApplication(), TCPService.class);
getApplication().startService(intent);
}
#Override
protected void onResume() {
super.onResume();
}
public static boolean isMultiStreamPlatform() {
if (DJISDKManager.getInstance() == null){
return false;
}
Model model = DJISDKManager.getInstance().getProduct().getModel();
return model != null && (model == Model.INSPIRE_2
|| model == Model.MATRICE_200
|| model == Model.MATRICE_210
|| model == Model.MATRICE_210_RTK
|| model == Model.MATRICE_600
|| model == Model.MATRICE_600_PRO
|| model == Model.A3
|| model == Model.N3);
}
private void initUI() {
primaryVideoFeedView = (VideoFeedView) findViewById(R.id.video_view_primary_video_feed);
primaryVideoFeedView.registerLiveVideo(VideoFeeder.getInstance().getPrimaryVideoFeed(), true);
fpvVideoFeedView = (VideoFeedView) findViewById(R.id.video_view_fpv_video_feed);
fpvVideoFeedView.registerLiveVideo(VideoFeeder.getInstance().getSecondaryVideoFeed(), false);
if (isMultiStreamPlatform()){
fpvVideoFeedView.setVisibility(View.VISIBLE);
}
showUrlInputEdit = (EditText) findViewById(R.id.edit_live_show_url_input);
showUrlInputEdit.setText(liveShowUrl);
startLiveShowBtn = (Button) findViewById(R.id.btn_start_live_show);
enableVideoEncodingBtn = (Button) findViewById(R.id.btn_enable_video_encode);
disableVideoEncodingBtn = (Button) findViewById(R.id.btn_disable_video_encode);
stopLiveShowBtn = (Button) findViewById(R.id.btn_stop_live_show);
soundOnBtn = (Button) findViewById(R.id.btn_sound_on);
soundOffBtn = (Button) findViewById(R.id.btn_sound_off);
isLiveShowOnBtn = (Button) findViewById(R.id.btn_is_live_show_on);
showInfoBtn = (Button) findViewById(R.id.btn_show_info);
showLiveStartTimeBtn = (Button) findViewById(R.id.btn_show_live_start_time);
showCurrentVideoSourceBtn = (Button) findViewById(R.id.btn_show_current_video_source);
changeVideoSourceBtn = (Button) findViewById(R.id.btn_change_video_source);
startLiveShowBtn.setOnClickListener(this);
enableVideoEncodingBtn.setOnClickListener(this);
disableVideoEncodingBtn.setOnClickListener(this);
stopLiveShowBtn.setOnClickListener(this);
soundOnBtn.setOnClickListener(this);
soundOffBtn.setOnClickListener(this);
isLiveShowOnBtn.setOnClickListener(this);
showInfoBtn.setOnClickListener(this);
showLiveStartTimeBtn.setOnClickListener(this);
showCurrentVideoSourceBtn.setOnClickListener(this);
changeVideoSourceBtn.setOnClickListener(this);
}
private void initListener() {
showUrlInputEdit.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
liveShowUrl = s.toString();
}
#Override
public void afterTextChanged(Editable s) {
}
});
listener = new LiveStreamManager.OnLiveChangeListener() {
#Override
public void onStatusChanged(int i) {
//Toast.makeText(getApplicationContext(), "status changed : " + i, Toast.LENGTH_SHORT).show();
}
};
}
#Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
BaseProduct product = DronifyApplication.getProductInstance();
if (product == null || !product.isConnected()) {
//Toast.makeText(getApplicationContext(), "disconnected", Toast.LENGTH_SHORT).show();
return;
}
if (isLiveStreamManagerOn()){
DJISDKManager.getInstance().getLiveStreamManager().registerListener(listener);
}
}
#Override
public void onDetachedFromWindow() {
super.onDetachedFromWindow();
if (isLiveStreamManagerOn()){
DJISDKManager.getInstance().getLiveStreamManager().unregisterListener(listener);
}
}
private boolean isLiveStreamManagerOn() {
if (DJISDKManager.getInstance().getLiveStreamManager() == null) {
//Toast.makeText(getApplicationContext(), "no liveStream manager", Toast.LENGTH_SHORT).show();
return false;
}
return true;
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_start_live_show:
startLiveShow();
break;
case R.id.btn_enable_video_encode:
enableReEncoder();
break;
case R.id.btn_disable_video_encode:
disableReEncoder();
break;
case R.id.btn_stop_live_show:
stopLiveShow();
break;
case R.id.btn_sound_on:
soundOn();
break;
case R.id.btn_sound_off:
soundOff();
break;
case R.id.btn_is_live_show_on:
isLiveShowOn();
break;
case R.id.btn_show_info:
showInfo();
break;
case R.id.btn_show_live_start_time:
showLiveStartTime();
break;
case R.id.btn_show_current_video_source:
showCurrentVideoSource();
break;
case R.id.btn_change_video_source:
changeVideoSource();
break;
default:
break;
}
}
private void enableReEncoder() {
if (!isLiveStreamManagerOn()) {
return;
}
DJISDKManager.getInstance().getLiveStreamManager().setVideoEncodingEnabled(true);
Toast.makeText(getApplicationContext(), "Force Re-Encoder Enabled!", Toast.LENGTH_SHORT).show();
}
private void disableReEncoder() {
if (!isLiveStreamManagerOn()) {
return;
}
DJISDKManager.getInstance().getLiveStreamManager().setVideoEncodingEnabled(false);
Toast.makeText(getApplicationContext(), "Disable Force Re-Encoder!", Toast.LENGTH_SHORT).show();
}
private void soundOn() {
if (!isLiveStreamManagerOn()) {
return;
}
DJISDKManager.getInstance().getLiveStreamManager().setAudioMuted(false);
Toast.makeText(getApplicationContext(), "Sound ON", Toast.LENGTH_SHORT).show();
}
private void soundOff() {
if (!isLiveStreamManagerOn()) {
return;
}
DJISDKManager.getInstance().getLiveStreamManager().setAudioMuted(true);
Toast.makeText(getApplicationContext(), "Sound OFF", Toast.LENGTH_SHORT).show();
}
private void isLiveShowOn() {
if (!isLiveStreamManagerOn()) {
return;
}
Toast.makeText(getApplicationContext(), "Is Live Show On:" + DJISDKManager.getInstance().getLiveStreamManager().isStreaming(), Toast.LENGTH_SHORT).show();
}
private void showLiveStartTime() {
if (!isLiveStreamManagerOn()) {
return;
}
if (!DJISDKManager.getInstance().getLiveStreamManager().isStreaming()){
Toast.makeText(getApplicationContext(), "Please Start Live First", Toast.LENGTH_SHORT).show();
return;
}
long startTime = DJISDKManager.getInstance().getLiveStreamManager().getStartTime();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
String sd = sdf.format(new Date(Long.parseLong(String.valueOf(startTime))));
Toast.makeText(getApplicationContext(), "Live Start Time: " + sd, Toast.LENGTH_SHORT).show();
}
private void changeVideoSource() {
if (!isLiveStreamManagerOn()) {
return;
}
if (!isSupportSecondaryVideo()) {
return;
}
if (DJISDKManager.getInstance().getLiveStreamManager().isStreaming()) {
Toast.makeText(getApplicationContext(), "Before change live source, you should stop live stream!", Toast.LENGTH_SHORT).show();
return;
}
currentVideoSource = (currentVideoSource == LiveStreamManager.LiveStreamVideoSource.Primary) ?
LiveStreamManager.LiveStreamVideoSource.Secoundary :
LiveStreamManager.LiveStreamVideoSource.Primary;
DJISDKManager.getInstance().getLiveStreamManager().setVideoSource(currentVideoSource);
Toast.makeText(getApplicationContext(), "Change Success ! Video Source : " + currentVideoSource.name(), Toast.LENGTH_SHORT).show();
}
private void showCurrentVideoSource(){
Toast.makeText(getApplicationContext(), "Video Source : " + currentVideoSource.name(), Toast.LENGTH_SHORT).show();
}
private boolean isSupportSecondaryVideo(){
if (isMultiStreamPlatform()) {
Toast.makeText(getApplicationContext(), "No secondary video!", Toast.LENGTH_SHORT).show();
return false;
}
return true;
}
private void showInfo() {
StringBuilder sb = new StringBuilder();
sb.append("Video BitRate:").append(DJISDKManager.getInstance().getLiveStreamManager().getLiveVideoBitRate()).append(" kpbs\n");
sb.append("Audio BitRate:").append(DJISDKManager.getInstance().getLiveStreamManager().getLiveAudioBitRate()).append(" kpbs\n");
sb.append("Video FPS:").append(DJISDKManager.getInstance().getLiveStreamManager().getLiveVideoFps()).append("\n");
sb.append("Video Cache size:").append(DJISDKManager.getInstance().getLiveStreamManager().getLiveVideoCacheSize()).append(" frame");
Toast.makeText(getApplicationContext(), sb.toString(), Toast.LENGTH_LONG).show();
}
void startLiveShow() {
Toast.makeText(getApplicationContext(), "start live show: " + isLiveStreamManagerOn(), Toast.LENGTH_SHORT).show();
if (!isLiveStreamManagerOn()) {
Toast.makeText(getApplicationContext(), "1. return", Toast.LENGTH_SHORT).show();
return;
}
if (DJISDKManager.getInstance().getLiveStreamManager().isStreaming()) {
Toast.makeText(getApplicationContext(), "live show already started", Toast.LENGTH_SHORT).show();
return;
}
new Thread() {
#Override
public void run() {
DJISDKManager.getInstance().getLiveStreamManager().setLiveUrl(liveShowUrl);
DJISDKManager.getInstance().getLiveStreamManager().setVideoEncodingEnabled(true);
DJISDKManager.getInstance().getLiveStreamManager().setAudioMuted(false);
final int result = DJISDKManager.getInstance().getLiveStreamManager().startStream();
DJISDKManager.getInstance().getLiveStreamManager().setStartTime();
runOnUiThread(new Runnable() {
public void run() {
Toast.makeText(getApplication(), "RESULT: " + result, Toast.LENGTH_SHORT).show();
}
});
}
}.start();
}
private void stopLiveShow() {
if (!isLiveStreamManagerOn()) {
return;
}
DJISDKManager.getInstance().getLiveStreamManager().stopStream();
Toast.makeText(getApplicationContext(), "stop live show", Toast.LENGTH_SHORT).show();
}
}
Any idea why? I have tested it on Google Pixel 2, and Huawei Mate 10. The sample has no problem on both devices, my app has the delay. Thanks!
Answering my own question, the only difference I noticed was that the SampleCode asked for 4 permission, and all the projects I've tried or copied the permissions, always just 3 permissions.
So Manifest:
< uses-permission android:name="android.permission.RECORD_AUDIO" />
your runtime permissions:
Manifest.permission.RECORD_AUDIO
and the delay is gone, all works fine. Still don't know why :)
I'm making flashlight application with handling Activity Life Cycle. The application is running fine but the problem occurs when i call onStop(); while flashlight is on ,when I return from the onStop();, the application should turn on flash light but it doesn't.
I have tried all the methods but the flashOn(); is not enabling the flashlight. I had checked from debugging that the application do nothing if the flashlight was on after returning from onStop();
public class MainActivity extends AppCompatActivity {
private ImageButton imagebtn;
ImageView img;
private Camera camera;
private boolean isFlashOn;
private boolean hasFlash = false;
private Camera.Parameters params;
private boolean flag= false;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imagebtn = (ImageButton) findViewById(R.id.button);
img = findViewById(R.id.torchimage);
isFlashOn = false;
hasFlash = getApplicationContext().getPackageManager()
.hasSystemFeature(PackageManager.FEATURE_CAMERA_FLASH);
if (!hasFlash) {
// If device doesn't support flash
// Show alert message and close the application
AlertDialog alert = new AlertDialog.Builder(MainActivity.this)
.create();
alert.setTitle("Error");
alert.setMessage("Sorry, your device doesn't support flash light!");
alert.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
finish();//Close application
}
});
alert.show();
}
imagebtn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (isFlashOn) {
flashOff();
} else {
flashOn();
}
}
});
}
protected void checkCamera() {
if (camera == null) {
try {
camera = Camera.open();
params = camera.getParameters();
} catch (RuntimeException e) {
Toast.makeText(getApplicationContext(), "Camera not found", Toast.LENGTH_SHORT).show();
}
}
}
**protected void flashOn() {
if (!isFlashOn) {
{
if (camera == null || params == null) {
return;
}
/*if (flag==true) {
flag=false;
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
camera.setParameters(params);
camera.startPreview();
*/}
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_TORCH);
camera.setParameters(params);
camera.startPreview();
isFlashOn = true;
toggleImages();
btnSound();
}
}**
protected void flashOff() {
if (isFlashOn)
{
if (camera == null || params == null) {
return;
}
params = camera.getParameters();
params.setFlashMode(Parameters.FLASH_MODE_OFF);
camera.setParameters(params);
camera.stopPreview();
isFlashOn = false;
toggleImages();
btnSound();
}
}
protected void btnSound() {
final MediaPlayer mp = MediaPlayer.create(this, R.raw.button_sound);
mp.start();
}
public void toggleImages() {
if (isFlashOn) {
imagebtn.setImageResource(R.drawable.button_on);
img.setImageResource(R.drawable.torch_on);
} else {
imagebtn.setImageResource(R.drawable.button_off);
img.setImageResource(R.drawable.torch_off);
}
}
#Override
protected void onDestroy() {
// Toast.makeText(this,"OnDestroy",Toast.LENGTH_SHORT).show();
super.onDestroy();
}
#Override
protected void onPause() {
super.onPause();
if (isFlashOn)
flashOn();
else
flashOff();
}
#Override
protected void onRestart(){ super.onRestart();
if (isFlashOn==true)
flashOn();
else
flashOff();
}
#Override
protected void onResume() {
super.onResume();
if (isFlashOn == true)
flashOn();
else
flashOff();
}
#Override
protected void onStart() {
super.onStart();
// Toast.makeText(this,"OnStart",Toast.LENGTH_SHORT).show();
// if (hasFlash)
checkCamera();
}
#Override
protected void onStop() {
// Toast.makeText(this, "OnStop", Toast.LENGTH_SHORT).show();
super.onStop();
if (camera != null) {
camera.release();
camera = null;
flag= true;
}
}
Please look again at the Android lifecycle https://developer.android.com/guide/components/activities/activity-lifecycle.html
It goes onStop -> onRestart -> onStart -> onResume
You have an awful lot of crap spread all over the place making what should be easy to see, rather difficult.
So... the flash is on ie isFlashOn = true;
Remove the boolean == true from the if while you're at it. Just if (boolean) works and is much better.
onStop... camera = null; flag= true;
But isFlashOn is still true
Returned to Activity...
onRestart... if (isFlashOn==true) flashOn(); <--- It is, so going to flashOn()
flashOn() {
if (!isFlashOn) { <------------- No the boolean is still true so this isn't run... camera is null anyway.
onStart... checkCamera() {
if (camera == null) { <------ Yes, OK
onResume... if (isFlashOn == true) <----- Again same problem, so camera never starts.
Set isFlashOn = false in onStop
Also remove code from resume or restart... its just duplicated and going through the same thing twice.
Hopefully this teaches you how to debug better. Learn from it.
this is my code, i am almost certain the problem is with the while loop.
public void start(View view) {
int currentPosition = 0;
player = MediaPlayer.create(this, R.raw.sound);
player.start();
int total = player.getDuration();
progressBar.setProgress(0);
progressBar.setMax(player.getDuration());
while (player != null && currentPosition < total) {
// try {
// Thread.sleep(500);
currentPosition = player.getCurrentPosition();
// } catch (InterruptedException e) {
// return;
// } catch (Exception e) {
// return;
// }
progressBar.setProgress(currentPosition);
}
}
public void stop(View view) {
player.stop();
}
whether or not i have the sleep intervals my result is the same; the sound starts playing but i cant stop it, and the progress bar doesn't move.
i would appreciate some help
I used this code in my app for using seekBar with MediaPlayer. It implements Runnable to keep the seekBar updating as the music plays. Take a look at the code:
public class MainActivity extends Activity implements Runnable,
OnClickListener, OnSeekBarChangeListener {
private SeekBar seekBar;
private Button startMedia;
private Button stopMedia;
private MediaPlayer mp;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
seekBar = (SeekBar) findViewById(R.id.seekBar1);
startMedia = (Button) findViewById(R.id.button1);
stopMedia = (Button) findViewById(R.id.button2);
startMedia.setOnClickListener(this);
stopMedia.setOnClickListener(this);
seekBar.setOnSeekBarChangeListener(this);
seekBar.setEnabled(false);
}
public void run() {
int currentPosition = mp.getCurrentPosition();
int total = mp.getDuration();
while (mp != null && currentPosition < total) {
try {
Thread.sleep(1000);
currentPosition = mp.getCurrentPosition();
} catch (InterruptedException e) {
return;
} catch (Exception e) {
return;
}
seekBar.setProgress(currentPosition);
}
}
public void onClick(View v) {
if (v.equals(startMedia)) {
if (mp == null) {
mp = MediaPlayer.create(getApplicationContext(), R.raw.song2);
seekBar.setEnabled(true);
}
if (mp.isPlaying()) {
mp.pause();
startMedia.setText("play");
} else {
mp.start();
startMedia.setText("pause");
seekBar.setMax(mp.getDuration());
new Thread(this).start();
}
}
if (v.equals(stopMedia) && mp != null) {
if (mp.isPlaying() || mp.getDuration() > 0) {
mp.stop();
mp = null;
startMedia.setText("play");
seekBar.setProgress(0);
}
}
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
try {
if (mp.isPlaying() || mp != null) {
if (fromUser)
mp.seekTo(progress);
} else if (mp == null) {
Toast.makeText(getApplicationContext(), "Media is not running",
Toast.LENGTH_SHORT).show();
seekBar.setProgress(0);
}
} catch (Exception e) {
Log.e("seek bar", "" + e);
seekBar.setEnabled(false);
}
}
#Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
#Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}
Thanks to: Sridhar Kulkarni