I have a string that both the letter and the number.
As shown below:
I want to separate numbers from letters and When the user clicks the numbers
these numbers are displayed on the screen as buttons.
Such as following photos:
I have a activity that takes this string to another activity.
Basically what I should do? thanks.
My Activity1:
public class BoxActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.box);
TextView textView = (TextView) findViewById(R.id.txtView);
Bundle bundle = getIntent().getExtras();
if(bundle != null){
String strBox = bundle.getString("fln");
textView.setText(strBox);
}
}
My Activity2
public class SmsInbox extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener, AdapterView.OnItemClickListener {
private static SmsInbox inst;
ArrayList<String> smsMessagesList = new ArrayList<String>();
ListView smsListView;
ArrayAdapter arrayAdapter;
public static SmsInbox instance() {
return inst;
}
#Override
public void onStart() {
super.onStart();
inst = this;
}
DrawerLayout drawer;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_sms_inbox);
smsListView = (ListView) findViewById(R.id.SmsList);
arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, smsMessagesList);
smsListView.setAdapter(arrayAdapter);
smsListView.setOnItemClickListener(this);
if(ContextCompat.checkSelfPermission(getBaseContext(), "android.permission.READ_SMS") == PackageManager.PERMISSION_GRANTED) {
ContentResolver cr = getContentResolver();
Cursor cursor = cr.query(Uri.parse("content://sms/inbox"), null, null,
null, null);
int indexBody = cursor.getColumnIndex("body");
int indexAddr = cursor.getColumnIndex("address");
if (indexBody < 0 || !cursor.moveToFirst()) return;
arrayAdapter.clear();
do {
String str = "?????? ??: " + cursor.getString(indexAddr) +
"\n" + cursor.getString(indexBody) + "\n";
arrayAdapter.add(str);
} while (cursor.moveToNext());
}
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
toggle.setDrawerIndicatorEnabled(false);
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
public void updateList(final String smsMessage) {
arrayAdapter.insert(smsMessage, 0);
arrayAdapter.notifyDataSetChanged();
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
try {
String[] smsMessages = smsMessagesList.get(pos).split("\n");
String address = smsMessages[0];
String smsMessage = "";
for (int i = 1; i < smsMessages.length; ++i) {
smsMessage += smsMessages[i];
}
/* String smsMessageStr = address + "\n";
smsMessageStr += smsMessage;
Toast.makeText(this, smsMessageStr, Toast.LENGTH_SHORT).show();
*/
Intent intent = new Intent(this, BoxActivity.class);
String strBox = smsMessage;
intent.putExtra("fln", strBox);
startActivity(intent);
/*Pattern isnumbers = Pattern.compile("[0-9]+$");
Matcher numberMatch = isnumbers.matcher(strBox);
if(numberMatch.matches()){
Toast.makeText(this, "" + numberMatch, Toast.LENGTH_LONG).show();
} */
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.END)) {
drawer.closeDrawer(GravityCompat.END);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.menuRight) {
if (drawer.isDrawerOpen(Gravity.RIGHT)) {
drawer.closeDrawer(Gravity.RIGHT);
} else {
drawer.openDrawer(Gravity.RIGHT);
}
return true;
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.Home_page) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in, R.anim.slide_out);
} else if (id == R.id.not_pay) {
if (SmsInbox.this.drawer != null && SmsInbox.this.drawer.isDrawerOpen(GravityCompat.END)) {
SmsInbox.this.drawer.closeDrawer(GravityCompat.END);
} else {
Intent intent = new Intent(this, MainActivity.class);
SmsInbox.this.startActivity(intent);
overridePendingTransition(R.anim.slide_in, R.anim.slide_out);
}
} else if (id == R.id.date_pay) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in, R.anim.slide_out);
} else if (id == R.id.bill_sms) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in, R.anim.slide_out);
} else if (id == R.id.help_menu) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in, R.anim.slide_out);
} else if (id == R.id.for_us) {
Intent intent = new Intent(this, MainActivity.class);
startActivity(intent);
overridePendingTransition(R.anim.slide_in, R.anim.slide_out);
} else if (id == R.id.exit_app) {
finish();
overridePendingTransition(0, 0);
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.END);
return true;
}
#Override
protected void attachBaseContext(Context newBase) {
super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
}
you should use Regex to exgtract Numbers from String
Pattern p = Pattern.compile("-?\\d+");
Matcher m = p.matcher("There are more than -2 and less than 12 numbers here");
while (m.find()) {
System.out.println(m.group());
}
on view click listener you can do this.
#Override
void onClick(View view){
String allTxt = editText.getText.toString()
Pattern p = Pattern.compile("-?\\d+");
Matcher m = p.matcher(allTxt);
while (m.find()) {
System.out.println(m.group());//here are the numbers then you can set it to another TextView
}
}
String str = "test-asdfdfg 455 yuoyr 4";
str = str.replaceAll("[^-?0-9]+", " ");
System.out.println(Arrays.asList(str.trim().split(" ")));
Output [455, 4] use this array to show chooser
Related
In my MainActivity shows like that, I am pretty developer yet, How to replace or solve it, I tried many as know but unfortunately getting error "is already defined"
In my MainActivity shows like that, I am pretty developer yet, How to replace or solve it, I tried many as know but unfortunately getting error "is already defined"
How can I solve this code to going right?
BottomNavigationView bottomNavigation;
public Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
loadLocale();
setContentView(R.layout.fragment_main);
//change actionbar title, if you dont change it will be according to your systems default language/english
ActionBar actionBar = getSupportActionBar();
actionBar.setTitle(getResources().getString(R.string.app_name));
Button changeLang = findViewById(R.id.changeMyLang);
changeLang.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//show AlertDialog to display list of language, one can be selected
showChangeLanguageDialog();
}
});
}
private void showChangeLanguageDialog() {
//array of languages to display in alert dialog
final String[] listItems = {"English", "O'zbek"};
final AlertDialog.Builder mBuilder = new AlertDialog.Builder(MainActivity.this);
mBuilder.setTitle("Choose Language...");
mBuilder.setSingleChoiceItems(listItems, -1, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
if (i == 0) {
//English
setLocale("en");
recreate();
} else if (i == 1) {
//O'zbek
setLocale("uz");
recreate();
}
//dismiss alert dialog when language selected
dialogInterface.dismiss();
}
});
AlertDialog mDialog =mBuilder.create();
//show alert dialog
mDialog.show();
}
DrawerLayout drawer;
ImageView imageView1;
BottomNavigationView.OnNavigationItemSelectedListener navigationItemSelectedListener = new BottomNavigationView.OnNavigationItemSelectedListener() {
public boolean onNavigationItemSelected(MenuItem menuItem) {
String str = "";
switch (menuItem.getItemId()) {
case R.id.navigation_home:
toolbar.setTitle(getString(R.string.app_name));
MainActivity.this.openFragment(MainFragment.newInstance(str, str, MainActivity.this));
return true;
case R.id.navigation_map:
toolbar.setTitle("Workouts");
MainActivity.this.openFragment(Fragment_Workout.newInstance(str, str));
return true;
case R.id.navigation_walk:
toolbar.setTitle("Walk & Step");
MainActivity.this.openFragment(Fragment_Walk_and_Step.newInstance(str, str));
return true;
case R.id.navigation_news:
toolbar.setTitle("Reminders");
MainActivity.this.openFragment(Fragment_Reminder.newInstance(str, str));
return true;
default:
return false;
}
}
};
NavigationView navigationView;
Toolbar toolbar;
#SuppressLint("ResourceType")
public void onCreate(Bundle bundle) {
super.onCreate(bundle);
if (VERSION.SDK_INT > 21) {
StrictMode.setThreadPolicy(new Builder().permitAll().build());
}
setContentView((int) R.layout.activity_main);
// StepDetectionServiceHelper.startAllIfEnabled(true, MainActivity.this);
this.navigationView = (NavigationView) findViewById(R.id.nav_views);
// bottomNavigation.setItemIconTintList(null);
this.imageView1 = (ImageView) findViewById(R.id.setting);
this.imageView1.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
// MainActivity.this.startActivity(new Intent(MainActivity.this, Setting_Activity.class));
}
});
if (VERSION.SDK_INT >= 21) {
Window window = getWindow();
window.addFlags(Integer.MIN_VALUE);
// window.setStatusBarColor(Color.parseColor("#EF5050"));
}
this.toolbar = initToolbar();
DrawerLayout drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
this.drawer = drawerLayout;
ActionBarDrawerToggle actionBarDrawerToggle =
new ActionBarDrawerToggle(this, drawerLayout, this.toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
this.drawer.addDrawerListener(actionBarDrawerToggle);
this.drawer.addDrawerListener(new DrawerLayout.SimpleDrawerListener() {
public void onDrawerClosed(View view) {
}
public void onDrawerOpened(View view) {
}
});
actionBarDrawerToggle.syncState();
this.navigationView.setNavigationItemSelectedListener(this);
String str = "#ffffff";
// this.toolbar.setTitleTextColor(Color.parseColor(str));
// this.toolbar.getNavigationIcon().setColorFilter(Color.parseColor(str), Mode.MULTIPLY);
BottomNavigationView bottomNavigationView = (BottomNavigationView) findViewById(R.id.nav_view);
this.bottomNavigation = bottomNavigationView;
bottomNavigationView.setOnNavigationItemSelectedListener(this.navigationItemSelectedListener);
String str2 = "";
// MainActivity mainActivity = null;
openFragment(MainFragment.newInstance(str2, str2, this));
}
public void openFragment(Fragment fragment) {
FragmentTransaction beginTransaction = getSupportFragmentManager().beginTransaction();
beginTransaction.replace(R.id.nav_host_fragment, fragment);
beginTransaction.addToBackStack(null);
beginTransaction.commit();
}
public void loadFragmentworkout(Fragment fragment) {
FragmentTransaction beginTransaction = getSupportFragmentManager().beginTransaction();
beginTransaction.replace(R.id.nav_host_fragment, fragment);
beginTransaction.addToBackStack(null);
beginTransaction.commit();
toolbar.setTitle("workout");
bottomNavigation.setSelectedItemId(R.id.navigation_map);
}
public void loadFragment_water(Fragment fragment) {
FragmentTransaction beginTransaction = getSupportFragmentManager().beginTransaction();
beginTransaction.replace(R.id.nav_host_fragment, fragment);
beginTransaction.addToBackStack(null);
beginTransaction.commit();
toolbar.setTitle("Walk & Step");
bottomNavigation.setSelectedItemId(R.id.navigation_walk);
}
private Toolbar initToolbar() {
Toolbar toolbar2 = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar2);
return toolbar2;
}
public boolean onNavigationItemSelected(MenuItem menuItem) {
int itemId = menuItem.getItemId();
String str = "android.intent.extra.TEXT";
String str2 = "android.intent.extra.SUBJECT";
if (itemId == R.id.nav_rateus) {
startActivity(new Intent(Intent.ACTION_VIEW,
Uri.parse("http://play.google.com/store/apps/details?id=" + getPackageName())));
} else if (itemId == R.id.nav_share) {
Intent intent2 = new Intent("android.intent.action.SEND");
intent2.setType("text/plain");
StringBuilder sb3 = new StringBuilder();
sb3.append("Best Free Sog'liq Bu Sport app download now.\n Thank You!\n https://play.google.com/store/apps/details?id=" + getPackageName());
sb3.append(getApplicationContext().getPackageName());
String sb4 = sb3.toString();
intent2.putExtra(str2, "Share App");
intent2.putExtra(str, sb4);
startActivity(Intent.createChooser(intent2, "Share via"));
} else if (itemId == R.id.nav_privacy) {
Uri uri = Uri.parse("https://the-life-bloga.blogspot.com/2020/01/blog-post.html");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
} else if (itemId == R.id.nav_telegram) {
Uri uri = Uri.parse("https://the-life-bloga.blogspot.com/2020/01/blog-post.html");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
} else if (itemId == R.id.nav_instagram) {
Uri uri = Uri.parse("https://www.instagram.com/sanatismoilov_official");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
} else if (itemId == R.id.nav_facebook) {
Uri uri = Uri.parse("https://www.facebook.com/Nodirovich98");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
} else if (itemId == R.id.nav_about) {
Uri uri = Uri.parse("https://msto.me/sanat_ismoilov");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
} else if (itemId == R.id.nav_covid) {
Uri uri = Uri.parse("https://coronavirus.uz/uz");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
this.drawer.closeDrawer((int) GravityCompat.START);
return true;
}
public void onBackPressed() {
StepDetectionServiceHelper.stopAllIfNotRequired(this.getApplicationContext());
// StepDetectionServiceHelper.startAllIfEnabled(true, MainActivity.this);
}
public void setLocale(String lang) {
Locale locale = new Locale(lang);
Locale.setDefault(locale);
Configuration config = new Configuration();
config.locale = locale;
getBaseContext().getResources().updateConfiguration(config, getBaseContext().getResources().getDisplayMetrics());
//save data to shared preferences
SharedPreferences.Editor editor = getSharedPreferences("Setting", MODE_PRIVATE).edit();
editor.putString("My_Lang", lang);
editor.apply();
}
// load language saved in shared prefences
public void loadLocale() {
SharedPreferences prefs = getSharedPreferences("Setting", Activity.MODE_PRIVATE);
String language = prefs.getString("My_Lang", "");
setLocale(language);`
}
}```
I want to make a POS app. In this app, I need to print a receipt, but I have a problem with the bluetooth connection.
In this code, I want to set the printer device that I use in my fragment. I want the bluetooth to stay connected even though I move to another fragment. I put the code in my MainActivity, but the problem is every time I move to another fragment, mService is always null. So I couldn't connect to the device.
Please help me. Thanks in advance.
MainActivity.Java
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener{
private static final String TAG = "MainActivity";
Fragment fragment = null;
Class fragmentClass = null;
public static final int MESSAGE_STATE_CHANGE = 1;
public static final int MESSAGE_READ = 2;
public static final int MESSAGE_WRITE = 3;
public static final int MESSAGE_DEVICE_NAME = 4;
public static final int MESSAGE_TOAST = 5;
public static final int MESSAGE_CONNECTION_LOST = 6;
public static final int MESSAGE_UNABLE_CONNECT = 7;
private String mConnectedDeviceName = null;
// Key names received from the BluetoothService Handler
public static final String DEVICE_NAME = "device_name";
public static final String TOAST = "toast";
public static final int REQUEST_CONNECT_DEVICE = 1;
private static final int REQUEST_ENABLE_BT = 2;
private BluetoothAdapter mBluetoothAdapter = null;
public BluetoothService mService = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
fragmentClass = RegisterFragment.class;
try {
fragment = (Fragment) fragmentClass.newInstance();
} catch (Exception e) {
e.printStackTrace();
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_main2, fragment).commit();
Log.v(TAG, "Starting DoDaily service...");
startService(new Intent(this, DoDaily.class));
mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
FragmentManager fm = getSupportFragmentManager();
//if you added fragment via layout xml
if (!mBluetoothAdapter.isEnabled()) {
Intent enableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
// Otherwise, setup the session
} else {
if (mService == null) {
setMService();
}
}
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
//getMenuInflater().inflate(R.menu.main2, menu);
return true;
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
String TAG_FRAGMENT="";
if (id == R.id.nav_regist) {
fragmentClass = RegisterFragment.class;
TAG_FRAGMENT ="register";
// Handle the camera action
} else if (id == R.id.nav_activity) {
fragmentClass = ActivityFragment.class;
TAG_FRAGMENT ="activity";
}
else if(id == R.id.nav_inventory)
{
fragmentClass = InventoryFragment.class;
TAG_FRAGMENT ="inventory";
}
else if (id == R.id.nav_manage) {
fragmentClass = SettingFragment.class;
TAG_FRAGMENT ="setting";
}
try {
fragment = (Fragment) fragmentClass.newInstance();
} catch (Exception e) {
e.printStackTrace();
}
FragmentManager fragmentManager = getSupportFragmentManager();
fragmentManager.beginTransaction().replace(R.id.content_main2, fragment,TAG_FRAGMENT).commit();
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#SuppressLint("HandlerLeak")
private final Handler mHandler = new Handler() {
#Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MESSAGE_STATE_CHANGE:
if (DEBUG)
Log.i(TAG, "MESSAGE_STATE_CHANGE: " + msg.arg1);
switch (msg.arg1) {
case BluetoothService.STATE_CONNECTED:
//btnScan.setText(getText(R.string.Connecting));
fragment1.btnScanEnable(false);
break;
case BluetoothService.STATE_CONNECTING:
Toast.makeText(MainActivity.this,R.string.title_connecting,Toast.LENGTH_SHORT).show();
break;
case BluetoothService.STATE_LISTEN:
case BluetoothService.STATE_NONE:
Toast.makeText(MainActivity.this,R.string.title_not_connected,Toast.LENGTH_SHORT).show();
break;
}
break;
case MESSAGE_WRITE:
break;
case MESSAGE_READ:
break;
case MESSAGE_DEVICE_NAME:
// save the connected device's name
mConnectedDeviceName = msg.getData().getString(DEVICE_NAME);
Toast.makeText(MainActivity.this,"Connected to " + mConnectedDeviceName,
Toast.LENGTH_SHORT).show();
String text ="Connected to "+mConnectedDeviceName;
fragment1.setTvText(text);
break;
case MESSAGE_TOAST:
Toast.makeText(MainActivity.this, msg.getData().getString(TOAST), Toast.LENGTH_SHORT).show();
break;
case MESSAGE_CONNECTION_LOST:
Toast.makeText(MainActivity.this, "Device connection was lost",Toast.LENGTH_SHORT).show();
String text1 ="Not Connect to Any Device";
fragment1.setTvText(text1);
// editText.setEnabled(false);
// sendButton.setEnabled(false);
break;
case MESSAGE_UNABLE_CONNECT:
Toast.makeText(MainActivity.this, "Unable to connect device",
Toast.LENGTH_SHORT).show();
break;
}
}
};
#Override
public void onStart() {
super.onStart();
// If Bluetooth is not on, request that it be enabled.
// setupChat() will then be called during onActivityResult
if (!mBluetoothAdapter.isEnabled()) {
Intent enableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
// Otherwise, setup the session
} else {
if (mService == null){
setMService();
}
}
}
#Override
public synchronized void onResume() {
super.onResume();
if (mService != null) {
if (mService.getState() == BluetoothService.STATE_NONE) {
// Start the Bluetooth services
mService.start();
}
}
}
#Override
public synchronized void onPause() {
super.onPause();
if (DEBUG)
Log.e(TAG, "- ON PAUSE -");
}
#Override
public void onStop() {
super.onStop();
if (DEBUG)
Log.e(TAG, "-- ON STOP --");
}
#Override
public void onDestroy() {
super.onDestroy();
// Stop the Bluetooth services
if (mService != null)
mService.stop();
if (DEBUG)
Log.e(TAG, "--- ON DESTROY ---");
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (DEBUG)
Log.d(TAG, "onActivityResult " + resultCode);
switch (requestCode) {
case REQUEST_CONNECT_DEVICE:{
// When DeviceListActivity returns with a device to connect
if (resultCode == Activity.RESULT_OK) {
// Get the device MAC address
String address = data.getExtras().getString(
DeviceListActivity.EXTRA_DEVICE_ADDRESS);
// Get the BLuetoothDevice object
if (BluetoothAdapter.checkBluetoothAddress(address)) {
BluetoothDevice device = mBluetoothAdapter
.getRemoteDevice(address);
// Attempt to connect to the device
mService.connect(device);
}
}
break;
}
case REQUEST_ENABLE_BT:{
// When the request to enable Bluetooth returns
if (resultCode == Activity.RESULT_OK) {
// Bluetooth is now enabled, so set up a session
// FragmentManager fm1 = getSupportFragmentManager();
// SettingFragment fragment1 = (SettingFragment) fm1.findFragmentByTag("setting");
// fragment1.KeyListenerInit();
setMService();
} else {
// User did not enable Bluetooth or an error occured
Log.d(TAG, "BT not enabled");
Toast.makeText(MainActivity.this, R.string.bt_not_enabled_leaving,Toast.LENGTH_SHORT).show();
onBackPressed();
}
break;
}
}
}
public void setMService()
{
mService = new BluetoothService(MainActivity.this, mHandler);
}
}
SettingFragment.Java
public class SettingFragment extends Fragment {
public static final int REQUEST_CONNECT_DEVICE = 1;
private static final String CHINESE = "GBK";
SessionManagement sessionManagement;
DatabaseHandler db;
TextView tvConnected;
Button btnScan;
Button btnTest;
public SettingFragment() {
// Required empty public constructor
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View rootview = inflater.inflate(R.layout.fragment_setting, container, false);
getActivity().setTitle("Setting");
btnScan = (Button)rootview.findViewById(R.id.btnScan);
btnTest = (Button) rootview.findViewById(R.id.btnTest);
tvConnected = (TextView) rootview.findViewById(R.id.tvPrinterConnect);
KeyListenerInit();
return rootview;
}
public void setTvText(String text)
{
tvConnected = (TextView) getActivity().findViewById(R.id.tvPrinterConnect);
tvConnected.setText(text);
}
public void btnScanEnable(Boolean set)
{
btnScan = (Button)getActivity().findViewById(R.id.btnScan);
btnScan.setEnabled(set);
}
public void KeyListenerInit() {
btnScan.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent serverIntent = new Intent(getActivity(), DeviceListActivity.class);
startActivityForResult(serverIntent, REQUEST_CONNECT_DEVICE);
}
});
((MainActivity)getActivity()).setMService();
}
}
remove this line from fragment KeyListenerInit method because you already initialize object in Activity then why you again intialize this.
((MainActivity)getActivity()).setMService();
and remove this code from onCreate method because you already add this code in onStart method so no need in onCreate method:
if (!mBluetoothAdapter.isEnabled()) {
Intent enableIntent = new Intent(
BluetoothAdapter.ACTION_REQUEST_ENABLE);
startActivityForResult(enableIntent, REQUEST_ENABLE_BT);
// Otherwise, setup the session
} else {
if (mService == null) {
setMService();
}
}
When I set content view on another layout its works perfectly, but when I set content view back to main layout its crashes.
My Main class and everything on it. Everything happens in public void firstTime().
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
private MapFragment mapsFragment;
static MainActivity can;
static FloatingActionButton fab;
static FloatingActionButton show;
private String encoded_string;
private Bitmap bitmap;
private String picturePath;
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
private GoogleApiClient client;
private void initializeMapsFragment() {
FragmentTransaction mTransaction = getSupportFragmentManager().beginTransaction();
mapsFragment = new MapFragment();
SupportMapFragment supportMapFragment = mapsFragment;
mTransaction.add(R.id.map, supportMapFragment);
mTransaction.commit();
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d("--***** MAP ", "::Loading Map");
can = this;
setContentView(R.layout.activity_main);
initializeMapsFragment();
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
fab = (FloatingActionButton) findViewById(R.id.fab);
show = (FloatingActionButton) findViewById(R.id.show);
show.hide();
fab.hide();
fab.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
callPopup();
}
});
show.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
stats();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
Button searchButton = (Button) findViewById(R.id.searchButton);
searchButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
EditText searchView = (EditText) findViewById(R.id.searchView1);
String text = searchView.getText().toString();
Geocoder geocoder = new Geocoder(getBaseContext());
List<Address> addresses = null;
try {
// Getting a maximum of 3 Address that matches the input
// text
addresses = geocoder.getFromLocationName(text, 3);
if (addresses != null && !addresses.equals(""))
search(addresses);
} catch (Exception e) {
}
}
});
client = new GoogleApiClient.Builder(this).addApi(AppIndex.API).build();
}
protected void search(List<Address> addresses) {
Address address = (Address) addresses.get(0);
LatLng latLng = new LatLng(address.getLatitude(), address.getLongitude());
MapFragment.mapView.moveCamera(CameraUpdateFactory.newLatLng(latLng));
MapFragment.mapView.animateCamera(CameraUpdateFactory.zoomTo(15));
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#RequiresApi(api = Build.VERSION_CODES.HONEYCOMB)
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
FragmentManager fm = getFragmentManager();
android.support.v4.app.FragmentManager sFm = getSupportFragmentManager();
int id = item.getItemId();
if (id == R.id.nav_camera) {
if (!mapsFragment.isAdded())
sFm.beginTransaction().add(R.id.map, mapsFragment).commit();
else
sFm.beginTransaction().show(mapsFragment).commit();
} else if (id == R.id.nav_share) {
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareBody = "Check this app out --> link.kys";
sharingIntent.putExtra(Intent.EXTRA_SUBJECT, "Best Free Parking app");
sharingIntent.putExtra(Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
public void firstTime() {
setContentView(R.layout.firsttime);
(findViewById(R.id.cancelBut))
.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
setContentView(R.layout.activity_main);
}
});
}
public static void load(){
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(can);
if (!prefs.getBoolean("firstTime", false)) {
can.firstTime();
//SharedPreferences.Editor editor = prefs.edit();
//editor.putBoolean("firstTime", true);
//editor.commit();
}
}
private void stats() {
setContentView(R.layout.stats);
RatingBar ratingbar = (RatingBar) findViewById(R.id.ratingBar);
ratingbar.setRating((float) 2.0);
ratingbar.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
ratingBar.setRating((float) 2.0);
}
});
((Button) findViewById(R.id.cancBut)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
setContentView(R.layout.content_main);
}
});
}
private void callPopup() {
final PopupWindow popupWindow;
LayoutInflater layoutInflater = (LayoutInflater) getBaseContext()
.getSystemService(LAYOUT_INFLATER_SERVICE);
View popupView = layoutInflater.inflate(R.layout.popup, null);
popupWindow = new PopupWindow(popupView,
DrawerLayout.LayoutParams.WRAP_CONTENT, DrawerLayout.LayoutParams.MATCH_PARENT,
true);
popupWindow.setTouchable(true);
popupWindow.setFocusable(true);
popupWindow.showAtLocation(popupView, Gravity.CENTER, 0, 0);
final EditText name = (EditText) popupView.findViewById(R.id.edtimageName);
((Button) popupView.findViewById(R.id.plcBut)).setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
selectPhoto();
}
});
((Button) popupView.findViewById(R.id.saveBtn))
.setOnClickListener(new View.OnClickListener() {
#TargetApi(Build.VERSION_CODES.GINGERBREAD)
public void onClick(View arg0) {
new Encode_image().execute();
popupWindow.dismiss();
}
});
((Button) popupView.findViewById(R.id.cancelbtutton))
.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
popupWindow.dismiss();
}
});
}
private void selectPhoto() {
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 10);
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == 10 && resultCode == RESULT_OK) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
picturePath = cursor.getString(columnIndex);
cursor.close();
}
}
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
public Action getIndexApiAction() {
Thing object = new Thing.Builder()
.setName("Main Page") // TODO: Define a title for the content shown.
// TODO: Make sure this auto-generated URL is correct.
.setUrl(Uri.parse("http://[ENTER-YOUR-URL-HERE]"))
.build();
return new Action.Builder(Action.TYPE_VIEW)
.setObject(object)
.setActionStatus(Action.STATUS_TYPE_COMPLETED)
.build();
}
#Override
public void onStart() {
super.onStart();
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
client.connect();
AppIndex.AppIndexApi.start(client, getIndexApiAction());
}
#Override
public void onStop() {
super.onStop();
// ATTENTION: This was auto-generated to implement the App Indexing API.
// See https://g.co/AppIndexing/AndroidStudio for more information.
AppIndex.AppIndexApi.end(client, getIndexApiAction());
client.disconnect();
}
private class Encode_image extends AsyncTask<Void, Void, Void> {
#Override
protected Void doInBackground(Void... voids) {
bitmap = BitmapFactory.decodeFile(picturePath);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
bitmap.recycle();
byte[] array = stream.toByteArray();
encoded_string = Base64.encodeToString(array, 0);
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
makeRequest();
}
}
private void makeRequest() {
RequestQueue requestQueue = Volley.newRequestQueue(this);
StringRequest request = new StringRequest(Request.Method.POST, "http://185.80.129.86/upload.php",
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
}
}) {
#Override
protected Map<String, String> getParams() throws AuthFailureError {
HashMap<String, String> map = new HashMap<>();
map.put("encoded_string", encoded_string);
map.put("image_name", "testing123.jpg");
return map;
}
};
requestQueue.add(request);
}
}
Error:
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.robertas.parking.bestfreeparking, PID: 3501
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:3936)
at android.view.ViewGroup.addView(ViewGroup.java:3786)
at android.view.ViewGroup.addView(ViewGroup.java:3758)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:810)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
at android.view.LayoutInflater.parseInclude(LayoutInflater.java:916)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:802)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:414)
at android.view.LayoutInflater.inflate(LayoutInflater.java:365)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:284)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:143)
at com.robertas.parking.bestfreeparking.MainActivity$4.onClick(MainActivity.java:245)
at android.view.View.performClick(View.java:4780)
at android.view.View$PerformClick.run(View.java:19866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Make changes this
Log.d("--***** MAP ", "::Loading Map");
can = this;
setContentView(R.layout.activity_main);
initializeMapsFragment();
i have a phone with android 6.0, and the method onMapReady is not execute, because i think need runtime permissions, and i dont know how to do that, this is my code
public class MainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, OnMapReadyCallback {
GoogleMap map;
GoogleApiClient mGoogleApiClient;
String email;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
FirebaseUser user= FirebaseAuth.getInstance().getCurrentUser();
//obtener datos para la barra
if(user != null) {
String nombre=user.getDisplayName();
email=user.getEmail();
Uri foto=user.getPhotoUrl();
NavigationView navigationsView = (NavigationView) findViewById(R.id.nav_view);
View hView = navigationsView.getHeaderView(0);
TextView nav_user = (TextView)hView.findViewById(R.id.txtMail);
TextView name=(TextView) hView.findViewById(R.id.txtNombre);
ImageView img_user = (ImageView)hView.findViewById(R.id.profile_image);
name.setText(nombre);
nav_user.setText(email);
Picasso.with(this).load(foto).into(img_user);
}
else {
SharedPreferences loginbdd=getSharedPreferences("login", Context.MODE_PRIVATE);
email=loginbdd.getString("nombre","");
String nombre=loginbdd.getString("mail","");
NavigationView navigationsView = (NavigationView) findViewById(R.id.nav_view);
View hView = navigationsView.getHeaderView(0);
TextView nav_user = (TextView)hView.findViewById(R.id.txtMail);
TextView name=(TextView) hView.findViewById(R.id.txtNombre);
ImageView img_user = (ImageView)hView.findViewById(R.id.profile_image);
nav_user.setText(email);
name.setText(nombre);
}
}
private void goLogin() {
Intent intent = new Intent(this, Login.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
#Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
new AlertDialog.Builder(MainActivity.this)
.setIcon(R.drawable.cerrar).setTitle("Cerrar Aplicación").setMessage("Deseas cerrar CicloMapp?")
.setCancelable(true).setPositiveButton("Si", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
System.exit(0);
}
})
.setNegativeButton("No", null).show();
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
} else if (id == R.id.endSession) {
new AlertDialog.Builder(MainActivity.this)
.setIcon(R.drawable.cerrar)
.setTitle("Cerrar sessión")
.setMessage("Deseas cerrar sesión?")
.setCancelable(true)
.setPositiveButton("Si", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
FirebaseUser user=FirebaseAuth.getInstance().getCurrentUser();
if(user!= null){
LoginManager.getInstance().logOut();
FirebaseAuth.getInstance().signOut();
goLogin();
}else{
SharedPreferences loginbdd=getSharedPreferences("login", Context.MODE_PRIVATE);
SharedPreferences.Editor editor=loginbdd.edit();
editor.remove("inicio");
editor.commit();
goLogin();
}
}
})
.setNegativeButton("No", null).show();
}
return super.onOptionsItemSelected(item);
}
#SuppressWarnings("StatementWithEmptyBody")
#Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.AgregarRuta) {
} else if (id == R.id.ValorarRuta) {
Intent i = new Intent(MainActivity.this, Valoraraciones.class);
i.putExtra("correo", email);
startActivity(i);
} else if (id == R.id.ReportarRuta) {
Intent i = new Intent(MainActivity.this, Reportar.class);
i.putExtra("correos", email);
startActivity(i);
} else if (id == R.id.Eventos) {
} else if (id == R.id.Refresco) {
} else if (id == R.id.Leyes) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
#Override
public void onMapReady(final GoogleMap googleMap) {
map=googleMap;
map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
map.getUiSettings().setMapToolbarEnabled(false);
map.getUiSettings().setMyLocationButtonEnabled(true);
map.setMyLocationEnabled(true);
map.getUiSettings().setZoomControlsEnabled(true);
CameraUpdate center = CameraUpdateFactory.newLatLng(new LatLng(-33.447487,-70.673676));
CameraUpdate zoom = CameraUpdateFactory.zoomTo(11);
map.moveCamera(center);
map.animateCamera(zoom);
Polyline po = new Polyline();
po.AddPolyline(map);
int height = 50;
int width = 50;
BitmapDrawable bitmapdraw = (BitmapDrawable) getResources().getDrawable(R.drawable.mruta);
Bitmap b = bitmapdraw.getBitmap();
Bitmap smallMarker = Bitmap.createScaledBitmap(b, width, height, false);
final Marcadores ma=new Marcadores();
ma.MarcadoreBdd(map,smallMarker);
}
}
maybe the onmylocation needs permissions ithink
ps: works perfect with android 4.4, the problem is with android 6.0 or higher
I also struggled with the runtime permissions when upgrading my app to a new Android version.
But I found this post very helpful:
https://inducesmile.com/android/android-6-marshmallow-runtime-permissions-request-example/
(The code below comes from this).
Basically, you need to check if you have the permissions in your App when you need them (perhaps during startup in your case) with code such as this;
if (ContextCompat.checkSelfPermission(WebActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(WebActivity.this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, MY_REQUEST_CODE);
}
Then, you need to handle a response in an onRequestPermissionsResult method
#Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
if (requestCode == MY_REQUEST_CODE) {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//You have permission, so continue
}else if (grantResults[0] == PackageManager.PERMISSION_DENIED){
if (ActivityCompat.shouldShowRequestPermissionRationale(WebActivity.this, Manifest.permission.RECORD_AUDIO)) {
//Show an explanation to the user *asynchronously*
ActivityCompat.requestPermissions(WebActivity.this, new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, MY_REQUEST_CODE);
}else{
//Never ask again and handle your app without permission.
}
}
}
}
Don't forget that you still need the permissions to be specified in your MANIFEST file.
I'm developing a material design app & for applying activity transition I have written the following code in my MainActivity.java
My MainActivity.java file's code:
public class MainActivity extends AppCompatActivity {
public Toolbar toolbar;
public TabLayout tabLayout;
public ViewPager viewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
// Call some material design APIs here
// enable transitions
getWindow().requestFeature(Window.FEATURE_CONTENT_TRANSITIONS);
} else {
}
setContentView(R.layout.activity_main);
SpannableString s = new SpannableString("abc");
s.setSpan(new TypefaceSpan(this, "Pacifico.ttf"), 0, s.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(false);
getSupportActionBar().setTitle(s);
viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(viewPager);
customTabFont();
}
private void customTabFont() {
String fontPath = "fonts/Pacifico.ttf";
Typeface tf = Typeface.createFromAsset(getAssets(), fontPath);
TextView tabOne = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
tabOne.setText("Accept a Request");
tabOne.setTypeface(tf);
tabLayout.getTabAt(0).setCustomView(tabOne);
TextView tabTwo = (TextView) LayoutInflater.from(this).inflate(R.layout.custom_tab, null);
tabTwo.setText("Post a Request");
tabTwo.setTypeface(tf);
tabLayout.getTabAt(1).setCustomView(tabTwo);
}
private void setupViewPager(ViewPager viewPager) {
ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
adapter.addFragment(new AcceptARequest(), "Accept a Request");
adapter.addFragment(new PostARequest(), "Post a Request");
viewPager.setAdapter(adapter);
}
class ViewPagerAdapter extends FragmentPagerAdapter {
private final List<Fragment> mFragmentList = new ArrayList<>();
private final List<String> mFragmentTitleList = new ArrayList<>();
public ViewPagerAdapter(FragmentManager manager) {
super(manager);
}
#Override
public Fragment getItem(int position) {
return mFragmentList.get(position);
}
#Override
public int getCount() {
return mFragmentList.size();
}
public void addFragment(Fragment fragment, String title) {
mFragmentList.add(fragment);
mFragmentTitleList.add(title);
}
#Override
public CharSequence getPageTitle(int position) {
return mFragmentTitleList.get(position);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_profile) {
// Check if we're running on Android 5.0 or higher
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
// Call some material design APIs here
getWindow().setExitTransition(new Explode());
Intent profileIntent = new Intent(MainActivity.this, ProfileActivity.class);
startActivity(profileIntent, ActivityOptions
.makeSceneTransitionAnimation(this).toBundle());
} else {
// Implement this feature without material design
Intent profileIntent = new Intent(MainActivity.this, ProfileActivity.class);
startActivity(profileIntent);
}
} else if (id == R.id.action_settings) {
Intent settingsIntent = new Intent(MainActivity.this, SettingsActivity.class);
startActivity(settingsIntent);
} else if (id == R.id.action_help) {
Intent helpIntent = new Intent(Intent.ACTION_SEND);
Intent chooser = Intent.createChooser(helpIntent, "Choose an app");
helpIntent.putExtra(Intent.EXTRA_EMAIL, new String[]{"help#abcxyz123.com"});
helpIntent.setType("message/rfc822");
startActivity(chooser);
} else if (id == R.id.action_faqs) {
Intent faqsIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.abcxyz123.com/faqs"));
startActivity(faqsIntent);
} else if (id == R.id.action_about) {
Intent aboutIntent = new Intent(MainActivity.this, AboutActivity.class);
startActivity(aboutIntent);
}
return super.onOptionsItemSelected(item);
}
}
After running the app, I'm getting following error:
android.util.AndroidRuntimeException: requestFeature() must be called before adding content must be called before adding content.
I do not understand why am I getting this error when I have added the requestFeature() before adding the content?
Please let me know.
I'm new to StackOverflow, so please cooperate.
Thanks in advance.
Your activity extends AppCompatActivity which does extensive setup in its onCreate(). Call requestFeature() before calling super.onCreate().