Develop Reference

windowSoftInputMode has no effect in Android M

I have a MainActivity with android:windowSoftInputMode="adjustNothing" set in the AndroidManifest. The Theme has parent Theme.AppCompat.Light.NoActionBar. I add a DialogFragment to this activity and show an AlertDialog inside of it, then set alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN); inside the fragment.
Now, on Android 5.1.1 it works as expected. The keyboard does not auto show when the dialog is created. When the user taps on an EditText inside of the dialog, the keyboard pops up and resizes the activity so that it won't overlap.
The problem is that on Android M, this doesn't happen. The keyboard is indeed not shown when the dialog is created, but when it pops-up after the user touched an EditText, it overlaps the dialog.
Any idea why this happens on M, but on previous versions everything works fine?
Edit: Apparently after creating a HelloWorld project with only the basics of the issue, I've found out that the below 2 Activity Theme elements cause the keyboard to not resize. If anybody has any permanent solution to this matter, I'm all ears (or rather eyes).
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:windowTranslucentStatus">true</item>
</style>

I've figured out that the following 2 lines from the Activity Theme causes the keyboard to not resize.
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowDrawsSystemBarBackgrounds">true</item>
<item name="android:windowTranslucentStatus">true</item>
</style>
For now, this is a quick fix. If anybody has a permanent solution to maybe retain those 2 lines but also fix the problem, please do post another answer.

Circular reveal on activity with fragment

I have problem with circular reveal on my fragment. Whenever I call my reveal, it starts a new Activity and then inside onCreateView in fragment, it calls my reveal.
It works, but there is one glitch – as I start a new Activity, everything turns white. The Activity's background is white and covers data under it. Is it possible to show this data and not overlay it with this white background? Or should I make some kind of mask, animate it, and at the end start Activity?

I had the same issue and resolved it by using a transparent activity. To make your Activity transparent, use this code.
Theme Definition in styles.xml
<style name="Theme.Transparent" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowIsTranslucent">true</item>
<item name="android:statusBarColor">#android:color/transparent</item>
<item name="android:windowBackground">#android:color/transparent</item>
</style>
Activity Definition in AndroidManifest.xml
<activity
android:name=".ui.CircularRevealActivity"
android:theme="#style/Theme.Transparent"
android:launchMode="singleTask"
/>
For a full answer on how to use a circular reveal animation on an activity, you can check this link.

Change Text for loading screen in ActionBar-PullToRefresh library

I have successfully implemented ActionBar-PullToRefresh in my code. Now whenever I refresh the list it shows "Loading ..." text in ActionBar.
So how to change that text in ActionBar. Do I directly change the string in the library or is there any other way to do that...

Approved approach from the samples
Source: https://github.com/chrisbanes/ActionBar-PullToRefresh/tree/master/samples
Create a theme with text overrides (e.g. ptrPullText),
that is, res/values/styles.xml:
<resources>
<style name="Theme.Holo.CustomPtrHeader" parent="android:Theme.Holo">
<item name="ptrHeaderStyle">#style/Widget.Custom.PtrHeader</item>
</style>
<style name="Widget.Custom.PtrHeader" parent="android:Widget">
<item name="ptrRefreshingText">Pulling down the internet</item>
</style>
</resources>
Apply the custom theme to your activity in AndroidManifest.xml
<activity
...
android:theme="#style/Theme.Holo.CustomPtrHeader" />
or Register you own HeaderTransformer
For the example on how to do this, please see the GridView sample.
or A little hackier way
Please note that setPullText is not on the HeaderTransformer interface, it's an instance method of DefaultHeaderTransformer:
attacher = PullToRefreshAttacher.get(this);
attacher.addRefreshableView(listView, this);
transformer = ((DefaultHeaderTransformer)attacher.getHeaderTransformer());
transformer.setRefreshingText("Pulling down the internet");

How to set the background screen as Wallpaper all the time?

Currently, I'm using this to show my application background as phone wallpaper.
getWindow().setFlags(WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER,
WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER);
But for some reason when I start my application by pressing the icon. It just shows the activity screen with the icons on the home screen. I didn't use dialog but it looks like a dialog because layout is just set that way. So I just want to show the wallpaper whenever this activity is running. But it only shows the wallpaper only after the next event occurs such as switching to different activity. I already put that code on onCreate() and whenever I do setContentView()..... Is there way to do such thing or there is just no way?

For users of AppCompat, just use the following in your styles.xml, no need for code:
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat">
<item name="android:windowBackground">#android:color/transparent</item>
<item name="android:colorBackgroundCacheHint">#null</item>
<item name="android:windowShowWallpaper">true</item>
<item name="android:windowTranslucentNavigation">true</item>
<item name="android:windowTranslucentStatus">true</item>
</style>

After long search and trial and error. I've found the solution to what I wanted. It was just creating separate themes.xml file and just tweak the Theme.Dialog which is already defined in default android themes.xml. All I did was change the Animation part. Originally in android themes.xml the line looks like this.
<item name="android:windowAnimationStyle">#android:style/Animation.Dialog</item>
but since modifying in android themes.xml doesn't take the effect. I just created my own themes.xml as I said above and just set parent as android:Theme.Dialog. And added a line like this.
<item name="android:windowAnimationStyle">#android:style/Animation</item>
Thanks for the help and I hope this solution helps others.

Use following code -
rl = (RelativeLayout)findViewById(R.id.someid);
//relative layout is my root node in main.xml (yours may be linearlayout)
WallpaperManager wm = WallpaperManager.getInstance(this);
Drawable d = wm.peekDrawable();
rl.setBackgroundDrawable(d);// You can also use rl.setBackgroundDrawable(getWallpaper);

How to create a fully customized Alert Dialog?

Is there a solution to create an Alert Dialog with no borders around? If I create a layout and attach it to the Alert Dialog, I have my layout shown, but it's surrounded by the default dialog borders. Any way to cut them off? Thanks in advance.

Here is one way (if you don't like this particular example with the green border, scroll below to see a second one I found).
Here is another example (this one gives you an example without a border, and one with a border. The explanations are in Japanese, but the code is given for both.)

Hi if you use your own layout then set this in your styles.xml
<style name="Theme.Transparent_layout" parent="android:style/Theme.Dialog">
<item name="android:windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>
<item name="android:windowBackground">#android:color/transparent</item>
</style>
and set this style in your manifest file
<activity android:name=".Main" android:theme="#style/Theme.Transparent_layout" />