I am trying to initialize/ turn on the NFC and the BT modules in same activity.
I need them both to be enabled before I continue the task.
I do understand that OnResultActivity is Async so I am trying to figure out what would be the best way to achieve it?
Here's most of the code:
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
initBT();
initNFC();
Intent nextIntent;
if(SaveSharedPreference.getUserName(MainActivity.this).length() == 0)
{
nextIntent = new Intent(MainActivity.this, LoginActivity.class);
}
else
{
nextIntent = new Intent(MainActivity.this, MainMenuActivity.class);
}
startActivity(nextIntent);
finish();
}
private void initBT() {
if(BTModule.GetInstance().initBT().equals(Constants.eBluetoothStatus.BT_DISABLED)){
Intent enableBtIntent = new Intent(BTModule.GetAdapter().ACTION_REQUEST_ENABLE);
startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
}
}
private void initNFC(){
mNFCState = NFCModule.initNFC(this);
if(mNFCState == eNFCStatus.NFC_NOT_SUPPORTED){
Toast.makeText(this, "NFC is not suppoeted for this device", Toast.LENGTH_LONG).show();
}
else if(mNFCState == eNFCStatus.NFC_DISABLED){
Intent nfcIntent;
if(android.os.Build.VERSION.SDK_INT >= 16){
nfcIntent = new Intent(android.provider.Settings.ACTION_NFC_SETTINGS);
}
else{
nfcIntent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
}
startActivity(nfcIntent);
Toast.makeText(this, "Please enable NFC", Toast.LENGTH_LONG);
}
else{
Toast.makeText(this, "NFC is up and running", Toast.LENGTH_LONG).show();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == eBluetoothStatus.BT_OK.ordinal()){
Toast.makeText(this, "BT is up and running", Toast.LENGTH_LONG).show();
return;
}
}
}
As I am a newbie please feel free to correct me if I am wrong with anything :)
thanks!!
Use startActivityForResult instead of startActivity in initNFC method. Also define 2 boolean variables like isNfcEnabled and isBtEnabled. In onActivityResult method check those booleans. If both of them are enable, do whatever you want.
Related
I'm trying to use onActivityResult to send a title, I've looked at the google implementation for the same task but it doesn't work me. Can someone help?
code for onActivityResult in mainActivity.
public void onActivityResult(int requestCode, int resultCode, Intent data){
super.onActivityResult(requestCode, resultCode, data);
System.out.println("There is something coming to this function" + requestCode);
if(requestCode == NEW_TITLE_ACTIVITY_REQUEST_CODE && resultCode == RESULT_OK){
Title title = new Title(data.getStringExtra(notesSection.EXTRA_REPLY));
mTitleViewModel.insert(title);
}else{
Toast.makeText(getApplicationContext(), R.string.empty_not_saved, Toast.LENGTH_LONG).show();
}
}
code in my notesSection activity.
finishFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// System.out.println("Button Has Been Clicked From Notes Section");
Intent replyIntent = new Intent();
if (TextUtils.isEmpty(titleEdit.getText())){
// System.out.println("Empty?");
setResult(RESULT_CANCELED, replyIntent);
}else{
// System.out.println("Sending Something Supposedly");
String title = titleEdit.getText().toString();
// System.out.println("Sending " + title);
replyIntent.putExtra(EXTRA_REPLY, title);
setResult(RESULT_OK, replyIntent);
}
finish();
// startActivity(new Intent(notesSection.this, MainActivity.class));
}
});
FYI: When I print something in the onActivityResult function, nothing shows up on my run terminal, I don't know why this is, but I don't think the function is being reached for some reason. I will send more code if necessary.
Thanks.
In your first activity try starting second activity like this
static int NEW_TITLE_ACTIVITY_REQUEST_CODE = 1;
#Override
protected void onCreate(Bundle savedInstanceState) {
---
---
---
// i assume you are starting activity on some button click
// so add following line in you button on click event
startActivityForResult(new Intent(MainActivity.this,notesSection.class),NEW_TITLE_ACTIVITY_REQUEST_CODE);
}
then override following method in your FIRST ACTIVITY
#Override
public void onActivityResult(int requestCode, int resultCode, #Nullable Intent data) {
if (resultCode == Activity.RESULT_OK && requestCode == NEW_TITLE_ACTIVITY_REQUEST_CODE)
{
// do whatever you want
}
}
Also update your finish fab on click listener
finishFab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent replyIntent = new Intent();
if (TextUtils.isEmpty(titleEdit.getText())){
setResult(RESULT_CANCELED, replyIntent);
}
else{
replyIntent.putExtra("TITLE", titleEdit.getText().toString());
setResult(RESULT_OK, replyIntent);
}
finish();
}
});
Actually, this procedure has changed recently. You might want to take a look at the official documentation so that you can implement it according to your needs.
I need to show a floating icon only along with a started maps activity and stop it when the map activity is gone.(when the user navegates back from the maps to my app) floating service over maps
mIntent = new Intent(MainActivity.this, FloatingIconService.class);
public void startTrip(String s , String d)
{
Uri gmIntentUri = Uri.parse("https://www.google.co.in/maps/dir/" + s + "/" + d);
Intent mapIntent = new Intent(Intent.ACTION_VIEW,gmIntentUri);
mapIntent.setPackage("com.google.android.apps.maps");
mapIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivityForResult(mapIntent,4000);
//view floating notes icon
startService(mIntent);
}
onPause is necessary to keep the service runnig along with maps and onActivityResult doesnot do what I want
#Override
protected void onPause() {
super.onPause();
// To prevent starting the service if the required permission is NOT granted.
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M || Settings.canDrawOverlays(this)) {
startService(new Intent(MainActivity.this, FloatingIconService.class).putExtra("activity_background", true));
finish();
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == DRAW_OVER_OTHER_APP_PERMISSION) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (!Settings.canDrawOverlays(this)) {
Toast.makeText(this, "Premission not granted", Toast.LENGTH_SHORT).show();
finish();
}
}
} else if (requestCode==4000 && (resultCode == Activity.RESULT_CANCELED || resultCode == Activity.RESULT_OK)){
stopService(mIntent);
}else {
super.onActivityResult(requestCode, resultCode, data);
}
}
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
startTrip("USA", "Alexandria");
}
});
I am trying to open this class on the click of a button, it works fine, however, this class is not present in HTC devices, so i want my app to show a toast on this exception, but it doesn't show anything-
Intent intent = new Intent();
intent.setAction("android.media.action.DISPLAY_AUDIO_EFFECT_CONTROL_PANEL");
if ((intent.resolveActivity(getPackageManager()) != null)) {
startActivity(intent);
} else {
Toast.makeText(getBaseContext(), "you are offline", Toast.LENGTH_LONG).show();
// No equalizer found :(
}
You can open with
startActivityForResult(new Intent(android.provider.Settings.ACTION_SETTINGS), 0);
You can return by pressing back button on device.
Try this
In your MainActivity.java put
Intent intent = new Intent();
intent.setAction("android.media.action.DISPLAY_AUDIO_EFFECT_CONTROL_PANEL");
if ((intent.resolveActivity(getPackageManager()) != null)) {
// here is the changes
// REQUEST_CODE is an any integer value
startActivityForResult(intent, REQUEST_CODE);
} else {
Toast.makeText(getBaseContext(), "Unable to open setting..", Toast.LENGTH_LONG).show();
}
If you want to handle result of an intent then
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// add your code here
}
i have button which have attribute android:onClick="atnDuom".
There is that function
public void atnDuom(View view)
{
finish();
}
and there is onActivityResult function in the same activity.
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 1) {
if (resultCode == RESULT_OK) {
DOP = new DatabaseOperations(ctx);
Intent returnIntent = new Intent();
user_name = data.getStringExtra("tarpVard");
user_lastname = data.getStringExtra("tarpPav");
institucijos_pavadinimas = data.getStringExtra("tarpInst");
padalinio_pavadinimas = data.getStringExtra("tarpPad");
pareigos = data.getStringExtra("tarpPar");
mob_tel = data.getStringExtra("tarpMob");
el_pastas = data.getStringExtra("tarpEl");
setResult(RESULT_OK,returnIntent);
DOP = new DatabaseOperations(ctx);
if(newVard.equals("")||newPav.equals("")||newInst.equals("")||newPad.equals("")||newPar.equals("")||newMob.equals("")||newEl.equals(""))
{
Toast.makeText(getBaseContext(), R.string.prashome, Toast.LENGTH_LONG).show();
}
else
{
DOP.updateUserInfo(DOP, user_name, user_lastname, institucijos_pavadinimas, padalinio_pavadinimas, pareigos, mob_tel, el_pastas, newVard, newPav, newInst, newPad, newPar, newMob, newEl);
Toast.makeText(getBaseContext(), "Duomenys atnaujinti", Toast.LENGTH_LONG).show();
finish();
}
}
}
}
It is possible to execute function onActivityResult whithout doing anything in atnDuom function?
Finish() close activity and onActivityResult doesnt work :)
You are using data from the intent, if you want to go to onActivityResult from atnDuom you will need to create a new Intent and push all the data needed
Intent newIntent = new Intent();
newIntent.putExtras(...);
onActivityResult(REQUEST_CODE, RESULT_OK, newIntent);
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);
}