Which method is called to notify a Fragment is visible when they are inside a ViewPager?

Which method should be used to refresh the ActionBar if you use ActionBarCompat library?

Which theme's attribute changes the color of the status bar in Lollipop?

Default behavior of an Activity when you manually rotate the device screen?

What should you do if you want access list of paired Bluetooth devices on Android?

Which is a benefit of deodexing?

If you are going to check a network connection with the below source code, what would be required to make it work? public boolean isOnline() { ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo netInfo = cm.getActiveNetworkInfo(); if (netInfo != null && netInfo.isConnectedOrConnecting()) return true; return false; }

what is the purpose of generating R.java as follows?

What's the output? public int pxToDp(int px) { DisplayMetrics displayMetrics = getContext().getResources().getDisplayMetrics(); int dp = Math.round(px / (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT)); return dp; } public int dpToPx(int dp) { DisplayMetrics displayMetrics = getContext().getResources().getDisplayMetrics(); int px = Math.round(dp * (displayMetrics.xdpi / DisplayMetrics.DENSITY_DEFAULT)); return px; }

What's the output? Values/google_maps_api.xml google_maps_key (key from https://console.developers.google.com/) AndroidManifest.xml Build.gradle(Module: app) Dependencies{ … Compile ‘com.google.android.gms:play-services:8.4.0’ }

What's the output? Calendar cal = Calendar.getInstance(); DateFormat dateFormat = new SimpleDateFormat('yyyy-MM-dd'); cal.add(Calendar.DATE, -1); return dateFormat.format(cal.getTime());