android 动态设置Activity 的切换方向

动态设置 Activity由左向由或由右向左

1.编写 LayoutAnimation XML

layout_left_in.xml

<?xml version="1.0" encoding="utf-8"?><layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"        android:id="@+id/animation_left"        android:delay="100%"        android:animation="@anim/side_left" />

side_left.xml

<?xml version="1.0" encoding="utf-8"?><set xmlns:android="http://schemas.android.com/apk/res/android"><translate android:fromXDelta="100%p" android:toXDelta="0" android:duration="300"/><alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" /></set>

layout_right_in.xml

<?xml version="1.0" encoding="utf-8"?><layoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"        android:delay="100%"        android:animation="@anim/side_right" />

side_right.xml

<?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:fromXDelta="-100%p" android:toXDelta="0"            android:duration="@android:integer/config_shortAnimTime" /></set>

2. 在Activity中通过LayoutAnimationController 动态设置 Layout的LayoutAnimation

LayoutAnimationController controller = null;Bundle extras;public void onCreate(Bundle saveInstanceState) {super.onCreate(saveInstanceState);// setContentView(R.layout.sales_memo_list);LayoutInflater factory = LayoutInflater.from(SalesMemoListActivity.this);final LinearLayout dialogEntryView = (LinearLayout) factory.inflate(R.layout.sales_memo_list, null);extras = getIntent().getExtras();if (extras != null) {String animation = extras.getString("animation");if (animation.equals("left")) {controller = AnimationUtils.loadLayoutAnimation(this,R.anim.layout_left_in);} else {controller = AnimationUtils.loadLayoutAnimation(this,R.anim.layout_right_in);}dialogEntryView.setLayoutAnimation(controller);}setContentView(dialogEntryView);}

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