利用Theme自定义Activity间的切换动画
2016-01-19 15:10
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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。
下面开始实现:
首先在res文件夹下建立anim文件夹,然后在里面建立fade_in.xml和fade_out.xml两个动画资源
fade_in.xml
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromAlpha="0.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="1.0" />
fade_out.xml
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromAlpha="1.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="0.0" />
然后在values文件夹下的styles.xml中的resources标签内写:
[html] view
plaincopy
<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>
最后一步在AndroidManifest.xml中的Activity的声明上加入android:theme="@style/Anim_fade"
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.customanimationforactivity"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="10" />
<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.customanimationforactivity.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>
贴下Splash Activity的代码:
[java] view
plaincopy
package com.example.customanimationforactivity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
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);
}
}
下面开始实现:
首先在res文件夹下建立anim文件夹,然后在里面建立fade_in.xml和fade_out.xml两个动画资源
fade_in.xml
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromAlpha="0.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="1.0" />
fade_out.xml
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<alpha xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="300"
android:fromAlpha="1.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="0.0" />
然后在values文件夹下的styles.xml中的resources标签内写:
[html] view
plaincopy
<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>
最后一步在AndroidManifest.xml中的Activity的声明上加入android:theme="@style/Anim_fade"
[html] view
plaincopy
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.customanimationforactivity"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="10"
android:targetSdkVersion="10" />
<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.customanimationforactivity.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>
贴下Splash Activity的代码:
[java] view
plaincopy
package com.example.customanimationforactivity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
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);
}
}
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