I have an activity where I ask to enable Bluetooth and discovery mode.
Requests are executed correctly and are taken by onactivityresult().
The problem is in the discovery request.
If I click on reject then RESULT_CANCELED is taken correctly, while if I click on allow, the result code is 120 and therefore it is not RESULT_OK and I cannot start the activity, it is normal that it is 120 and not RESULT_OK?
MyActivity
public class TransitionActivity extends AppCompatActivity {
private static final int ENABLE_REQUEST = 0;
private static final int DISCOVER_REQUEST = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_transition);
BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if(bluetoothAdapter == null){ //bluetooth not supported
Toast.makeText(this, "Bluetooth not supported.", Toast.LENGTH_SHORT).show();
finish();
}
if(!bluetoothAdapter.isEnabled()){
Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(i,ENABLE_REQUEST);
}
if(!bluetoothAdapter.isDiscovering()){
Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
startActivityForResult(i,DISCOVER_REQUEST);
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode == ENABLE_REQUEST){
if(resultCode == RESULT_OK){
}
if(resultCode == RESULT_CANCELED){
Toast.makeText(this, "You need to enable the bluetooth.", Toast.LENGTH_SHORT).show();
finish();
}
}
if(requestCode == DISCOVER_REQUEST){
System.out.println("RESULT CODE" + resultCode); //it is 120
if(resultCode == RESULT_OK){ //skipped
Intent secondActivity = new Intent(this, com.project.secondActivity.class);
this.startActivity(secondActivity);
}
if(resultCode == RESULT_CANCELED){
finish();
}
}
}
}
Value of resultCode is same as discoverable duration EXTRA_DISCOVERABLE_DURATION passed in Intent.
and by default duration is 120. So it is OK.
If you will start activity like this
Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
i.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 240);
startActivityForResult(i,DISCOVER_REQUEST);
It will return 240 as result code.
Related
I am starting an activity with startActivityForResult like this
#Override
public void onEmptyViewClicked(Calendar time) {
Bundle bundle = new Bundle();
bundle.putSerializable("time",time);
bundle.putInt("fragmentId",1);
Intent intent = new Intent(this,AddEventActivity.class);
intent.putExtras(bundle);
startActivityForResult(intent,1);
}
and in AddEventActivity i add fragments depending on the fragment id.The first fragment add events and second fragment delete events.onAddEvent and onDeleteEvent i setResult with appropriate data like this
#Override
public void onAddEventClicked(Bundle bundle) {
Intent intent = new Intent(this,MainActivity.class);
intent.putExtras(bundle);
setResult(1,intent);
finish();
}
#Override
public void eventDelete(Events event) {
Bundle bundle = new Bundle();
bundle.putSerializable("deleteEvent",event);
Intent newIntent = new Intent(this,MainActivity.class);
newIntent.putExtras(bundle);
setResult(2,newIntent);
finish();
}
OnActivityResult code is something like this
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if(resultCode == 1 && data != null){
if(requestCode == 1){
}
}else if(resultCode == 2){
}
}
}
Now onActivityResult is getting called onAdding event but not on deleting event.eventDelete method is getting called but it is not triggering onActivityResult.What could be the problem?Thankyou.
UPDATED
I put a debug at first line in onActivityResult but debugger doesn't stop there.
startActivityForResult(intent,1);
here 1 is your requestCode
setResult(1,intent);
here 1 is your resultCode
you are setting same resultcode for Two events
change your onActivityResult to
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == 1) { //add event
if (requestCode == 1) {
if (data != null) {
if (data.getExtras().containsKey("deleteEvent")) {
} else {
}
}
}
} else if (resultCode == 2) { //delete event
//write code
}
}
you should add RESULT_OK and validate this resultCode:
Intent returnIntent = new Intent();
returnIntent.putExtra("returndata");
setResult(Activity.RESULT_OK, returnIntent);
finish();
after this, u need add the validation in your onActivityResult method...
if(requestCode == CODE_REQUEST){
if(resultCode == Activity.RESULT_OK){
//do something here
}{
//catch cancel result
}
}
I'm trying to deal with the new Android Lollipop MediaProjection API.
I have found that (at least on my stock Samsung Galaxy S4 jfltexx) when I start the intent to get permission to capture the screen (ProjectionManager.createScreenCaptureIntent()), I won't have a result in onActivityResult unless I have checked "Don't ask again" on the preceding try ...
private static final int ALLOW_SCREENSHOT_REQ = 102;
{
...
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
System.out.println("request permission");
startActivityForResult(mProjectionManager.createScreenCaptureIntent(), ALLOW_SCREENSHOT_REQ);
}
...
}
And the result handling:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
System.out.println("RebootActivity.onActivityResult(" + requestCode + "," + resultCode + ", data)");
}
The permission dialog is showing well, but my activity gets hidden and it never goes to onActivityResult.
Any idea of what's going wrong?
Have you tried like this: See Full Example android-ScreenCapture
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == REQUEST_MEDIA_PROJECTION) {
if (resultCode != Activity.RESULT_OK) {
Log.i(TAG, "User cancelled");
Toast.makeText(getActivity(), R.string.user_cancelled, Toast.LENGTH_SHORT).show();
return;
}
Activity activity = getActivity();
if (activity == null) {
return;
}
Log.i(TAG, "Starting screen capture");
mResultCode = resultCode;
mResultData = data;
setUpMediaProjection();
setUpVirtualDisplay();
}
}
Hope it will helps you.
I have the next activities:
Activity1
//declare
private static final int SAVE_DATA_FROM_ACTIVITY = 203;
//........... not important code
//button to open second Activity
public void btn_openSecondActivity(View view)
{
Intent intent = new Intent(Activity2.this, Activity1.class);
startActivityForResult(intent, SAVE_DATA_FROM_ACTIVITY);
}
}
protected void onActivityResult (int requestCode, int resultCode, Intent data)
{
if (requestCode == SAVE_DATA_FROM_activity)
{
name= data.getStringExtra("Name");
}
}
//....... not important code
Activity2
On Second Activity I have two buttons:
Cancel
Save
//............
//declare
private static final int OK_RESULT_CODE = 1;
//Cancel button
public void btn_cancel(View view)
{
finish();
}
//Save button
public void btn_save (View view)
{
Intent intent = new Intent();
intent.putExtra("Name",et_name.getText().toString());
setResult(OK_RESULT_CODE, intent);
finish();
}
PROBLEM
When I click Save button all works perfect, but the problem it's when I click Cancel button, then it's reports an error:
Failure delivering result ResultInfo{who=null, request=203, result=0, data=null} to activity {com.example.alvaro.project/com.alvaro.project.Activity1}: java.lang.NullPointerException
I understand the problem, when I cancel is not the same result code but i don't know how I can solve it
Any suggestions?
You have issue in onActivityResult method. You don't check result.
Change your condition from :
if (requestCode == SAVE_DATA_FROM_activity)
to:
if (resultCode == OK_RESULT_CODE && requestCode == SAVE_DATA_FROM_activity)
Change this
if (requestCode == SAVE_DATA_FROM_activity)
{
name= data.getStringExtra("Name");
}
into
if (requestCode == SAVE_DATA_FROM_activity&&resultCode==RESULT_OK)
{
name= data.getStringExtra("Name");
}
and
Your cancel method is like
public void btn_cancel(View view)
{
setResult(RESULT_CANCELED);
finish();
}
And instead of OK_RESULT_CODE use Android default ok like Activity.RESULT_OK
Check if you manage to set the result
protected void onActivityResult (int requestCode, int resultCode, Intent data)
{
if (requestCode == SAVE_DATA_FROM_activity && resultCode = Activity2.OK_RESULT_CODE)
{
name= data.getStringExtra("Name");
} else {
//probably btn_cancel pressed
}
}
check resultCode in onActivityResult
protected void onActivityResult (int requestCode, int resultCode, Intent data)
{
if (resultCode == 1/*OK_RESULT_CODE from Second Activity */ && requestCode == SAVE_DATA_FROM_activity)
{
name= data.getStringExtra("Name");
}
}
Activity1
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == SAVE_DATA_FROM_activity) {
if (resultCode == Activity.RESULT_OK) {
name = data.getStringExtra("Name");
} else if (resultCode == Activity.RESULT_CANCELED){
// TODO something
}
}
}
Activity2
delete field OK_RESULT_CODE
//Cancel button
public void btn_cancel(View view) {
setResult(Activity.RESULT_CANCELED, new Intent());
finish();
}
//Save button
public void btn_save(View view) {
Intent intent = new Intent();
intent.putExtra("Name", et_name.getText().toString());
setResult(Activity.RESULT_OK, intent);
finish();
}
I have a method in my application which starts a new Activity which starts the Camera Application. The Camera Application returns a result (picture taken or not taken), and I store this result in the Intent-Bundle.
In the original method I want to read this bundle, which does not work because the activity is not finished yet.
How can I wait for the activity to finish before going on in my method?
Method
#Override
public boolean startChallenge(Context context) {
Intent cam = new Intent(context, CameraIntent.class);
cam.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(cam);
Boolean done = cam.getExtras().get("done"); // << this fails obviously
}
Activity
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(i, CAPTURE_IMAGE_CAPTURE_CODE);
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
intent = getIntent();
if (requestCode == CAPTURE_IMAGE_CAPTURE_CODE) {
if (resultCode == RESULT_OK) {
intent.putExtra("done", true);
} else if (resultCode == RESULT_CANCELED) {
intent.putExtra("done", false);
}
}
finish();
}
I would like to keep the structure of the code because the startChallenge() Method is inherited from a superclass (Challenge) and startChallenge is different from type to type (e.g. there is a challenge where you have to take a picture, another challenge where you have to answer something, and so on). The method gets called in another activity, depending on the type of challenge.
startChallenge should have a reference to the Activity that expects the result back to be able to call startActivityForResult
Method
#Override
public boolean startChallenge(Activity activityB) {// Activity B in which you are expecting this result back.
Intent cam = new Intent(activityB, ActivityA.class);
activityB.startActivityForResult(cam, REQUEST_CODE_OPEN_CAMERA);
}
Activity A
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
intent = getIntent();
if (requestCode == CAPTURE_IMAGE_CAPTURE_CODE) {
if (resultCode == RESULT_OK) {
intent.putExtra("done", true);
} else if (resultCode == RESULT_CANCELED) {
intent.putExtra("done", false);
}
}
setResult(RESULT_OK, intent);
finish();
}
Another approach would be to use LocalBroadcastManager or Otto
Activity A
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAPTURE_IMAGE_CAPTURE_CODE) {
if (resultCode == RESULT_OK) {
BusProvider.getInstance().post(new ImageCapturedEvent(true));
} else if (resultCode == RESULT_CANCELED) {
BusProvider.getInstance().post(new ImageCapturedEvent(false));
}
}
finish();
}
The first time I call startActivityForResult() with requestCode x it return to onActivityResult().But the second time I call startActivityForResult() within the same activity with diffrent requestCode it doesnt return to the onActivityResult() and just proceed
with the code.
I have tried to add this property to the manifest andter the activity
android:noHistory
Why it doesnt return to onActivityResult()?And how i can fix it?
Thanks a lot,
Leon
Edit: Here is my code
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == MY_DATA_CHECK_CODE) {
if (resultCode == TextToSpeech.Engine.CHECK_VOICE_DATA_PASS) {
myTTS = new TextToSpeech(this, this);
}
else {
Intent installTTSIntent = new Intent();
installTTSIntent.setAction(TextToSpeech.Engine.ACTION_INSTALL_TTS_DATA);
startActivity(installTTSIntent);
}
}
else if(RESULT_SPEECH == requestCode)
{
if (resultCode == RESULT_OK && null != data) {
ArrayList<String> text = data
.getStringArrayListExtra(RecognizerIntent.EXTRA_RESULTS);
textFromSpeech = text.get(0);
}
}
}
private void getTextFromSpeech()
{
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, "en-US");
try {
startActivityForResult(intent, RESULT_SPEECH);
} catch (ActivityNotFoundException a) {
Toast t = Toast.makeText(getApplicationContext(),
"Ops! Your device doesn't support Speech to Text",
Toast.LENGTH_SHORT);
t.show();
}
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_tts_);
/*
* New Intent purely for the purposes of checking the user data
*/
Intent checkTTSIntent = new Intent();
checkTTSIntent.setAction(TextToSpeech.Engine.ACTION_CHECK_TTS_DATA);
startActivityForResult(checkTTSIntent, MY_DATA_CHECK_CODE);
}