从MainActivity进入到SecondActivity，然后从SecondActivity返回到MainActivity这样一个过程中如何设置两个Activity创建和销毁的动画呢？(activity转场动画)

 

SDK中Activity类里面有设置动画的方法
/**
** @param enterAnim A resource ID of the animation resource to use for
     * the incoming activity.  Use 0 for no animation.
     * @param exitAnim A resource ID of the animation resource to use for
     * the outgoing activity.  Use 0 for no animation.
     */
*/
  public void overridePendingTransition(int enterAnim, int exitAnim) {
        try {
            ActivityManager.getService().overridePendingTransition(
                    mToken, getPackageName(), enterAnim, exitAnim);
        } catch (RemoteException e) {
        }
    }

• 注意
  此方法的设置需要在启动新activity后也就是startActivity()之后调用，返回（销毁）时需要在finish（）方法之后调用

• 下面介绍使用方法
  overridePendingTransition（int enterAnim, int exitAnim）参数为0时无动画

  • step one:首先在res/下新建anim文件夹，新家4个动画
    in_from_left

 

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
    android:interpolator="@android:anim/accelerate_interpolator">
    <translate
        android:duration="300"
        android:fromXDelta="-100%p"
        android:toXDelta="0%p" />
</set>

in_from_right

 

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

    <translate
        android:duration="300"
        android:fromXDelta="100%p"
        android:toXDelta="0%p" />
</set>

out_to_left

 

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

    <translate
        android:duration="300"
        android:fromXDelta="0%p"
        android:toXDelta="-100%p" />
</set>

out_to_right

 

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

    <translate
        android:duration="300"
        android:fromXDelta="0%p"
        android:toXDelta="100%p" />
</set>

• 进场（启动进入）动画设置

 

        Intent intent = new Intent();
        intent.setClass(context, clazz);
        intent.putExtras(bundle);
        startActivity(intent);
        overridePendingTransition(R.anim.in_from_right, R.anim.out_to_left);

• 出场（退出）动画设置

 

 finish();
 overridePendingTransition(R.anim.in_from_left, R.anim.out_to_right);

在实际开发中往往不需要在每个启动方法处都这样添加，一般都是写到基类中然后所有继承该基类的activity都拥有转场动画,如需修改也很方便

• 如下

 

BaseActivity：
 public void startActivity(Class clazz, Bundle bundle) {
        Intent intent = new Intent();
        intent.setClass(this, clazz);
        intent.putExtras(bundle);
        startActivity(intent);
        overridePendingTransition(R.anim.in_from_right, R.anim.out_to_left);
    }

    public void startActivity(Class clazz,) {
        Intent intent=new Intent();       
        intent.setClass(this, clazz);
        startActivity(intent);
        overridePendingTransition(R.anim.in_from_right, R.anim.out_to_left);
    }

    public void startActivityForResult( Class clazz, Bundle bundle, int requestCode) {
        Intent intent = new Intent();
        intent.setClass(this, clazz);
        intent.putExtras(bundle);
        startActivityForResult(intent, requestCode);
        overridePendingTransition(R.anim.in_from_right, R.anim.out_to_left);
    }


    @Override
    public void onBackPressed() {
        super.onBackPressed();
        finish();
        overridePendingTransition(R.anim.in_from_left, R.anim.out_to_right);
    }

 

 

 

 

 

一、淡入效果：

/anim/fade.xml内容如下：

 

1. <?xml version="1.0" encoding="utf-8"?>

2. <alpha xmlns:android="http://schemas.android.com/apk/res/android"

3. android:interpolator="@android:anim/accelerate_interpolator"

4. android:fromAlpha="0.0" android:toAlpha="1.0"

5. android:duration="@android:integer/config_longAnimTime" />

/anim/hold.xml文件内容如下：

 

1. <?xml version="1.0" encoding="utf-8"?>

2. <translate xmlns:android="http://schemas.android.com/apk/res/android"

3. android:interpolator="@android:anim/accelerate_interpolator"

4. android:fromXDelta="0" android:toXDelta="0"

5. android:duration="@android:integer/config_longAnimTime" />

调用在监听器中，像下面的代码：

 

overridePendingTransition(R.anim.fade, R.anim.hold);

当然Android本身也提供的有这个效果，调用如下格式：

 

overridePendingTransition(android.R.anim.fade_in,android.R.anim.fade_out);

二、缩小效果

/anim/zoom_enter.xml内容如下：

 

1. <?xml version="1.0" encoding="utf-8"?>

2. <set xmlns:android="http://schemas.android.com/apk/res/android"

3. android:interpolator="@android:anim/decelerate_interpolator">

4. <scale android:fromXScale="2.0" android:toXScale="1.0"

5. android:fromYScale="2.0" android:toYScale="1.0"

6. android:pivotX="50%p" android:pivotY="50%p"

7. android:duration="@android:integer/config_mediumAnimTime" />

8. </set>

/anim/zoom_exit.xml内容如下：

 

1. <?xml version="1.0" encoding="utf-8"?>

2. <set xmlns:android="http://schemas.android.com/apk/res/android"

3. android:interpolator="@android:anim/decelerate_interpolator"

4. android:zAdjustment="top">

5. <scale android:fromXScale="1.0" android:toXScale=".5"

6. android:fromYScale="1.0" android:toYScale=".5"

7. android:pivotX="50%p" android:pivotY="50%p"

8. android:duration="@android:integer/config_mediumAnimTime" />

9. <alpha android:fromAlpha="1.0" android:toAlpha="0"

10. android:duration="@android:integer/config_mediumAnimTime"/>

11. </set>

调用格式：

 

overridePendingTransition(R.anim.zoom_enter, R.anim.zoom_exit);