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ANDROID MATERIAL DESIGN RATING BAR

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A RatingBar is an extension of SeekBar and ProgressBar that shows a rating in stars. The user can touch/drag or use arrow keys to set the rating when using the default size RatingBar. The smaller RatingBar style ( ratingBarStyleSmall ) and the larger indicator-only style ( ratingBarStyleIndicator ) do not support user interaction and should only be used as indicators. How to add? I. In your build.gradle add latest appcompat library. dependencies { compile 'com.android.support:appcompat-v7:X.X.X' // where X.X.X version } II. Make your activity extend  android.support.v7.app.AppCompatActivity . public class MainActivity extends AppCompatActivity { ... } III. Declare your RatingBar inside any  layout.xml  file. <RatingBar android:rating="3.5" android:stepSize="0.5" android:numStars="5" android:layout_width="wrap_content" android:layout_height="wrap_content"/> I. Declare cu...
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Android Toast

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From google material design  documentation . Android also provides a toast, primarily used for system messaging. Toasts are similar to snackbars but do not contain actions and cannot be swiped off screen. How to add? Create Toast instance with make() method. Then call show() method. Toast.makeText(context, "No network connection.", duration).show(); To specify how long Toast will be visible on screen use duration parameter of makeText() method or setDuration method. // you can use only those 2 predefined constants duration = Toast.LENGTH_SHORT; // 2000 millis duration = Toast.LENGTH_LONG; // 3500 millis toast.setDuration(duration); To hide Toast manually at any time use cancel() method. Toast toast= Toast.make(view, text, duration).show(); toast.cancel(); //hide toast Close the view if it's showing, or don't show it if it isn't showing yet. You do not normally have to call this. Normally view will disappear on its own after the appro...
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Layout design in Android Studio

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Today when start optimizing the codebase of my project, I saw this: Look at the list of XML files inside my  res/layout  folder. Horrible, right? Now, look at yours. Is your  res/layout  too big, hard to control? Your project have too many features, too many screens? Let imagine while confusing running for the deadline, and you can’t find the XML layout that need to be fixed  just because you can’t remember the file name. Wandering search online, I find out that many people have the  same problem  as me. So I decide to write an article to share some tips for better manage  res/layout  folder in  Android Studio . Step 1 First create a parent layouts folder. Right click in  res , select  New  →  Directory , type  layouts (remember the  ‘s’  or it will be duplicated). I call it “ layouts”   because it is parent folder to hold all l...
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