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Why is the Android emulator so slow? How can we speed up the Android emulator? [closed]

... Update You can now enable the Quick Boot option for Android Emulator. That will save emulator state, and it will start the emulator quickly on the next boot. Click on Emulator edit button, then click Show Advanced Setting. Then enable Quick Boot like below screenshot. Andr...
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Remove shadow below actionbar

...he shadow add this to your app theme: <style name="MyAppTheme" parent="android:Theme.Holo.Light"> <item name="android:windowContentOverlay">@null</item> </style> UPDATE: As @Quinny898 stated, on Android 5.0 this has changed, you have to call setElevation(0) on your act...
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How do I create ColorStateList programmatically?

... See http://developer.android.com/reference/android/R.attr.html#state_above_anchor for a list of available states. If you want to set colors for disabled, unfocused, unchecked states etc. just negate the states: int[][] states = new int[][] { ...
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Disable EditText blinking cursor

... You can use either the xml attribute android:cursorVisible="false" or the java function setCursorVisible(false). share | improve this answer | ...
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How to Set Opacity (Alpha) for View in Android

...nSetAlpha. Maybe you could try something similar with your button: import android.content.Context; import android.util.AttributeSet; import android.widget.TextView; public class AlphaTextView extends TextView { public AlphaTextView(Context context) { super(context); } public AlphaTextV...
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How to make an Android Spinner with initial text “Select One”?

...splay the prompt string for position less than 0. This has been tested on Android 1.5 through 4.2, but buyer beware! Because this solution relies on reflection to call the private AdapterView.setNextSelectedPositionInt() and AdapterView.setSelectedPositionInt(), it's not guaranteed to work in futur...
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overlay two images in android to set an imageview

...te a new Drawable XML file, let's call it layer.xml: <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item android:drawable="@drawable/t" /> <item android:drawable="@drawable/tt" /> </layer-list> Now set the image using that Drawable: testi...
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How to add Action Bar from support library into PreferenceActivity?

...tivity class for creating activities with Action Bar on older versions of Android. 8 Answers ...
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Line-breaking widget layout for Android

...endency to your build.gradle file: dependencies { compile 'com.google.android:flexbox:0.3.2' } More about FlexboxLayout usage and all the attributes you can find in repository readme or in Mark Allison articles here: https://blog.stylingandroid.com/flexboxlayout-part-1/ https://blog.styling...
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cannot find zip-align when publishing app

... received when I tried to publish my app. I'm using the latest revision of Android SDK Tools (23 which was released today) and SDK Platform-tools (20 which was also released today). I got an APK out of it, but if I tried to upload it to Google Play I got an error complaining that it is not zip align...