Put these 2 lines inside onCreate() after findViewById, then you can use context. SharedPreferences store = PreferenceManager.getDefaultSharedPreferences(getApplication()); SharedPreferences.Editor edit = store.edit(); solved Unfortunately, [APP] has stopped! WHAT am i doing wrong? [closed]
You can use web service to connect to your mysql DB using ajax and json/xml data format. query the data from DB and output the data using JSON/XML. parse the JSON/XML data and display in your content. 1 solved How to develop a quiz based android application [closed]
A ListView will scroll itself inside its bounds if it needs to. If you haven’t anything else inside the ScrollView, it is unneeded. If you have more stuff not shown in your posted layout, the user will have to do a scroll gesture on something that is contained in the ScrollView that isn’t the ListView, … Read more
You can absolutely do that. Load all the data (through a web service call or by any other means). When data are retrieved, set them to the RecyclerView‘s adapter and call notifyDatasetChanged()). Use the RecyclerView normally (i.e. binding data objects to the views in onBindViewHolder(). This way you will get what you want (having all … Read more
MODE_APPEND doesn’t mean that you add multiple values for each key. It means that if the file already exists it is appended to and not erased . We usually used MODE_PRIVATE. As for saving multiple names and passwords, you can take a look at putStringSet(string key Set<String> values Method. You can save the for each … Read more
You can use Bundle class and put_extra data to retrieve and put. Example : put_extra Intent i = new Intent(); i.putExtra(“name_of_extra”, myParcelableObject); to read data Bundle b = new Bundle(); b = getIntent().getExtras(); Object myParcelableObject = b.getString(“name_of_extra”); solved How can I share values between a Service and Fragment in Android? [duplicate]
Short answer: You can’t. Android does not provide an API to retrieve the anti-collision identifier. However, it really depends on what component generates the fixed ID: NFC controller (unlikely if the ID is fixed): In that case, it’s likely that there is no option to retrieve the ID from software. Android NFC stack on the … Read more
You should first initialize you SQLiteDatabase, so convert this: SQLiteDatabase database; database.delete(ActivityTableDBOpenHelper.ACTIVITY_TABLE,null,null); to this: SQLiteDatabase database = new SQLiteDatabase(this); // or dbHelper.getWritableDatabase(); if you have a dbHelper database.delete(ActivityTableDBOpenHelper.ACTIVITY_TABLE,null,null); Else the database object is null and you get the error. Here you could find a whole example for all operations http://www.vogella.com/tutorials/AndroidSQLite/article.html 2 solved How to delete … Read more
return new Set(parcel.ReadStringArray(), parcel.ReadBooleanArray()… At parcel.ReadBooleanArray() You have no boolean arrays in the constructor public Set ( string[] Jugador, int[] Games, int[] NoForzados, int[] Aces, int[] Winners, int[] DobleFaltas, int[] Primeros, int[] PrimerosGanados, int[] Segundos, int[] SegundosGanados) Did you forget to set jugado? 1 solved Why is my Parcelable Creator not working?
Use below code to your goal. startB = (Button) this.findViewById(R.id.button1); startB.setOnClickListener((OnClickListener) this); text = (TextView) findViewById(R.id.textView1); @Override public void onClick(View v) { new CountDownTimer(30000, 1000) { // adjust the milli seconds here public void onTick(long millisUntilFinished) { text.setText(“”+String.format(“%d min, %d sec”, TimeUnit.MILLISECONDS.toMinutes( millisUntilFinished), TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) – TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished)))); } public void onFinish() { text.setText(“done!”); } }.start(); } … Read more
Well, short answer – no. Most android apps are developed using Java as the programming language, with a mark-up language which could be comparable to HTML (but is not HTML) to build the basic UI structure of most screens. Certain aspects of HTML are still used in Android apps, for example, when we’d like to … Read more
you need to use AlarmManager to trigger alarm at specific peroid or at different intervals..set up a Broadcast Receiver to get the alarm fired….and start an intent service to send emails in the background an example class to receive alarm in mainactivity: public void setRepeatingAlarm() { Intent intent = new Intent(this, ReceiveAlarm.class); PendingIntent pendingIntent = … Read more
start your SDK Manager, select the desired API and click “download packages”. Where is the problem? solved Updating Android SDK manager with higher api [closed]
First contact the radio station office, by phone or email an obtain a written “OK” from they. Implementation: For android is no problem. For iOS : at the Apple review you have to explain why is this more than a simple URL open, via browser. So you should add some platform feaures to be accepted. … Read more
private DownloadImageTask task; public void onCreate(){ task = new DownloadImageTask(); } private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> { protected Bitmap doInBackground(String… urls) { String urldisplay = urls[0]; Bitmap mIcon11 = null; try { InputStream in = new java.net.URL(urldisplay).openStream(); mIcon11 = BitmapFactory.decodeStream(in); } catch (Exception e) { Log.e(“Error”, e.getMessage()); e.printStackTrace(); } return mIcon11; } protected … Read more