├── .gitignore
├── .idea
├── compiler.xml
├── copyright
│ └── profiles_settings.xml
├── gradle.xml
├── misc.xml
├── modules.xml
└── runConfigurations.xml
├── app
├── .gitignore
├── build.gradle
├── proguard-rules.pro
└── src
│ ├── androidTest
│ └── java
│ │ └── com
│ │ └── androidtutorialshub
│ │ └── animatedgradientbackground
│ │ └── ExampleInstrumentedTest.java
│ ├── main
│ ├── AndroidManifest.xml
│ ├── java
│ │ └── com
│ │ │ └── androidtutorialshub
│ │ │ └── animatedgradientbackground
│ │ │ └── MainActivity.java
│ └── res
│ │ ├── drawable
│ │ ├── drawable_amber_gradient.xml
│ │ ├── drawable_gradient_animation_list.xml
│ │ ├── drawable_green_gradient.xml
│ │ ├── drawable_purple_gradient.xml
│ │ └── drawable_red_gradient.xml
│ │ ├── layout
│ │ └── activity_main.xml
│ │ ├── mipmap-hdpi
│ │ ├── ic_launcher.png
│ │ └── ic_launcher_round.png
│ │ ├── mipmap-mdpi
│ │ ├── ic_launcher.png
│ │ └── ic_launcher_round.png
│ │ ├── mipmap-xhdpi
│ │ ├── ic_launcher.png
│ │ └── ic_launcher_round.png
│ │ ├── mipmap-xxhdpi
│ │ ├── ic_launcher.png
│ │ └── ic_launcher_round.png
│ │ ├── mipmap-xxxhdpi
│ │ ├── ic_launcher.png
│ │ └── ic_launcher_round.png
│ │ └── values
│ │ ├── colors.xml
│ │ ├── strings.xml
│ │ └── styles.xml
│ └── test
│ └── java
│ └── com
│ └── androidtutorialshub
│ └── animatedgradientbackground
│ └── ExampleUnitTest.java
├── build.gradle
├── gradle.properties
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle
/.gitignore:
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1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea/workspace.xml
5 | /.idea/libraries
6 | .DS_Store
7 | /build
8 | /captures
9 | .externalNativeBuild
10 |
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/app/.gitignore:
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1 | /build
2 |
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/app/build.gradle:
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1 | apply plugin: 'com.android.application'
2 |
3 | android {
4 | compileSdkVersion 25
5 | buildToolsVersion "25.0.2"
6 | defaultConfig {
7 | applicationId "com.androidtutorialshub.animatedgradientbackground"
8 | minSdkVersion 15
9 | targetSdkVersion 25
10 | versionCode 1
11 | versionName "1.0"
12 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
13 | }
14 | buildTypes {
15 | release {
16 | minifyEnabled false
17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
18 | }
19 | }
20 | }
21 |
22 | dependencies {
23 | compile fileTree(dir: 'libs', include: ['*.jar'])
24 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
25 | exclude group: 'com.android.support', module: 'support-annotations'
26 | })
27 | compile 'com.android.support:appcompat-v7:25.3.1'
28 | compile 'com.android.support.constraint:constraint-layout:1.0.2'
29 | testCompile 'junit:junit:4.12'
30 | }
31 |
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/app/proguard-rules.pro:
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1 | # Add project specific ProGuard rules here.
2 | # By default, the flags in this file are appended to flags specified
3 | # in G:\AndroidStudio\sdk/tools/proguard/proguard-android.txt
4 | # You can edit the include path and order by changing the proguardFiles
5 | # directive in build.gradle.
6 | #
7 | # For more details, see
8 | # http://developer.android.com/guide/developing/tools/proguard.html
9 |
10 | # Add any project specific keep options here:
11 |
12 | # If your project uses WebView with JS, uncomment the following
13 | # and specify the fully qualified class name to the JavaScript interface
14 | # class:
15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
16 | # public *;
17 | #}
18 |
19 | # Uncomment this to preserve the line number information for
20 | # debugging stack traces.
21 | #-keepattributes SourceFile,LineNumberTable
22 |
23 | # If you keep the line number information, uncomment this to
24 | # hide the original source file name.
25 | #-renamesourcefileattribute SourceFile
26 |
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/app/src/androidTest/java/com/androidtutorialshub/animatedgradientbackground/ExampleInstrumentedTest.java:
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1 | package com.androidtutorialshub.animatedgradientbackground;
2 |
3 | import android.content.Context;
4 | import android.support.test.InstrumentationRegistry;
5 | import android.support.test.runner.AndroidJUnit4;
6 |
7 | import org.junit.Test;
8 | import org.junit.runner.RunWith;
9 |
10 | import static org.junit.Assert.*;
11 |
12 | /**
13 | * Instrumentation test, which will execute on an Android device.
14 | *
15 | * @see Testing documentation
16 | */
17 | @RunWith(AndroidJUnit4.class)
18 | public class ExampleInstrumentedTest {
19 | @Test
20 | public void useAppContext() throws Exception {
21 | // Context of the app under test.
22 | Context appContext = InstrumentationRegistry.getTargetContext();
23 |
24 | assertEquals("com.androidtutorialshub.animatedgradientbackground", appContext.getPackageName());
25 | }
26 | }
27 |
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/app/src/main/AndroidManifest.xml:
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/app/src/main/java/com/androidtutorialshub/animatedgradientbackground/MainActivity.java:
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1 | package com.androidtutorialshub.animatedgradientbackground;
2 |
3 | import android.graphics.drawable.AnimationDrawable;
4 | import android.support.constraint.ConstraintLayout;
5 | import android.support.v7.app.AppCompatActivity;
6 | import android.os.Bundle;
7 |
8 | public class MainActivity extends AppCompatActivity {
9 |
10 | private ConstraintLayout constraintLayout;
11 | private AnimationDrawable animationDrawable;
12 |
13 | @Override
14 | protected void onCreate(Bundle savedInstanceState) {
15 | super.onCreate(savedInstanceState);
16 | setContentView(R.layout.activity_main);
17 |
18 | getSupportActionBar().hide();
19 |
20 | // init constraintLayout
21 | constraintLayout = (ConstraintLayout) findViewById(R.id.constraintLayout);
22 |
23 | // initializing animation drawable by getting background from constraint layout
24 | animationDrawable = (AnimationDrawable) constraintLayout.getBackground();
25 |
26 | // setting enter fade animation duration to 5 seconds
27 | animationDrawable.setEnterFadeDuration(5000);
28 |
29 | // setting exit fade animation duration to 2 seconds
30 | animationDrawable.setExitFadeDuration(2000);
31 | }
32 |
33 | @Override
34 | protected void onResume() {
35 | super.onResume();
36 | if (animationDrawable != null && !animationDrawable.isRunning()) {
37 | // start the animation
38 | animationDrawable.start();
39 | }
40 |
41 | }
42 |
43 | @Override
44 | protected void onPause() {
45 | super.onPause();
46 | if (animationDrawable != null && animationDrawable.isRunning()) {
47 | // stop the animation
48 | animationDrawable.stop();
49 | }
50 | }
51 | }
52 |
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/app/src/main/res/drawable/drawable_amber_gradient.xml:
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/app/src/main/res/drawable/drawable_gradient_animation_list.xml:
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