自定义Activity间的切换动画

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只有不断找寻机会的人才会及时把握机会。

本讲内容：利用Theme自定义Activity间的切换动画

大多Android系统默认Activity间的动画切换效果为，右边滑入，左边滑出；有时候我们的需求可能是要求所有Activity的切换为淡入淡出的效果，这时候就可能需要改变一下默认的切换风格。

示例效果图：

下面是res/layout/activity_main.xml 布局文件：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/c1" >

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/c2"
    android:orientation="vertical" >

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android" >

    <alpha
        android:duration="3000"
        android:fromAlpha="0.0"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toAlpha="1.0" />

</set>

下面是新建res/anim/fade_out.xml文件：

<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
    android:duration="3000"
    android:fromAlpha="1.0"
    android:interpolator="@android:anim/accelerate_interpolator"
    android:toAlpha="0.0" />

<style name="Anim_fade" parent="android:Theme.NoTitleBar">  
       <item name="android:windowAnimationStyle">@style/fade</item>  
   </style>  
  
   <style name="fade" parent="@android:style/Animation.Activity">  
       <item name="android:activityOpenEnterAnimation">@anim/fade_in</item>  
       <item name="android:activityOpenExitAnimation">@anim/fade_out</item>  
       <item name="android:activityCloseEnterAnimation">@anim/fade_in</item>  
       <item name="android:activityCloseExitAnimation">@anim/fade_out</item>  
   </style>  

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.custom"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@android:style/Theme.NoTitleBar" >
        <activity
            android:name="com.example.custom.MainActivity"
            android:label="@string/app_name"
            android:theme="@style/Anim_fade" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".AppActivity" android:theme="@style/Anim_fade"></activity>
    </application>

</manifest>

public class MainActivity extends Activity {
	private Handler handler=new Handler();

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		handler.postDelayed(new Runnable() {
			
			@Override
			public void run() {
				Intent intent=new Intent(MainActivity.this,AppActivity.class);
				startActivity(intent);
				finish();
			}
		}, 1000);
	}

}

public class AppActivity extends Activity{
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.first);
	}

}

自定义Activity间的切换动画

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原文地址：http://blog.csdn.net/liguojin1230/article/details/44339571