OrenBochman

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// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
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//     http://www.apache.org/licenses/LICENSE-2.0
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OrenBochman

Saving and restoring activity state across configuration changes

1. implement onSaveInstanceState(Bundle state)
2. implement onRestoreInstanceState(Bundle state)

• input controlls are saved automatically
• listview items/position etc need to be saved.
• to persist for the long term use SQLite db, shared prefrences or a file

OrenBochman

this gist has the data for this sample db

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read.me

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Fragment - reusable

Basic reusable fragment - based on exposing an interface.

OrenBochman

Android dialog with host callbacks

OrenBochman

Configuration Changes

getting the cuttent configuration

in an activity:

Configuration config = ContextThemeWrapper.getResources().getConfiguration();

Saving UI state (simple)

OrenBochman

Record Audio

OrenBochman

//Add before making a phone call
if (ActivityCompat.checkSelfPermission(
        MainActivity.this, Manifest.permission.CALL_PHONE)
        != PackageManager.PERMISSION_GRANTED) {
    if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,
            Manifest.permission.CALL_PHONE)) {
        Toast.makeText(MainActivity.this, "I know you said no, but I'm asking again", Toast.LENGTH_SHORT).show();
    }
    ActivityCompat.requestPermissions(MainActivity.this,
            new String[]{Manifest.permission.CALL_PHONE},

OrenBochman

Network Helper

Note: connectivity broadcasts are no longer sent to inactive apps - to avoid waking 40+ apps on each network change.

1. check app has network access
2. schedule a task when network is available...