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Preview layout with merge root tag in Intellij IDEA/Android Studio

... There is a new parentTag tools attribute (added in Android Studio 2.2) that you can use to specify the layout type for a merge tag, which will make the layout render correctly in the layout editor preview. So using your example: <merge xmlns:android="http://schemas.andr...
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How to add a button to a PreferenceScreen?

I'm quite new to Android Development and just came across Preferences. I found PreferenceScreen and wanted to create a login functionality with it. The only problem I have is that I don't know how I could add a "Login" button to the PreferenceScreen . ...
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Why are nested weights bad for performance? Alternatives?

...he same flat xml structure. Updated Github Project Updated Samples: <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_he...
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How do I add a bullet symbol in TextView?

... ◄ and ►. Edit: here's an example. The two Buttons at the bottom have android:text="◄" and "►". share | improve this answer | follow | ...
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Android studio - Failed to find target android-18

I have a problem with Android Studio 0.2.3. 12 Answers 12 ...
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How to put Google Maps V2 on a Fragment using ViewPager

...ore. I got to display the tab layout using a fragments and viewpager from androidhive. However, I can't implement google maps v2 on it. I searched the internet for hours already, but I can't find a tutorial on how to do it. Can some one please show me how? ...
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How to change the Text color of Menu item in Android?

Can I change the background color of a Menu item in Android? 27 Answers 27 ...
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Get spinner selected items text?

... did not get the actual text. I got a string representing a cursor object: android.database.sqlite.SQLiteCursor@410dfae8probably because I used a cursor adapter. Any idea what I should do to get the right string? – AdamMc331 Nov 27 '14 at 19:21 ...
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How to change progress bar's progress color in Android

I'm using an horizontal progress bar in my Android application, and I want to change its progress color (which is Yellow by default). How can I do it using code (not XML)? ...
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ImageView - have height match width?

...ording to a comment below, the percent support library is deprecated as of Android Support Library 26.0.0. This is the new way to do it: <android.support.constraint.ConstraintLayout android:layout_width="match_parent" android:layout_height="wrap_content"> <ImageView an...