关闭Android过度缩放动画

在Android开发者选项中关于动画的设置有三个选项：窗口动画缩放、过渡动画缩放、动画程序时长缩放。

这三个“缩放”的具体含义如下：

窗口动画缩放：

Scaling factor for normal window animations. Setting to 0 will disable window animations. //作用于非Activity窗口

过渡动画缩放：

Scaling factor for activity transition animations. Setting to 0 will disable window animations. //作用于Activity窗口

动画程序时长缩放：

Scaling factor for Animator-based animations. This affects both the start delay and duration of all such animations. Setting to 0 will cause animations to end immediately. The default value is 1.//作用于全局的动画时长

代码关闭Android过度缩放动画

获取WindowManager句柄，通过binder调用WindowManagerService中setAnimationScale方法

    //setAnimationScale(0.0f, 0.0f, 1.0f);

    /**
     * @para　
     * value1 窗口动画缩放
     * value2 过渡动画缩放
     * value3 Animator时长缩放
     */
    private void setAnimationScale(float value1, float value2, float value3) {
        IWindowManager mWindowManager = IWindowManager.Stub.asInterface(ServiceManager.getService(Context.WINDOW_SERVICE));
        try {
            float[] values = {value1, value2, value3};
            mWindowManager.setAnimationScales(vars);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

修改开发者选项中动画缩放的默认值

frameworks/base/core/res/res/values/config.xml

    <item name="config_appTransitionAnimationDurationScaleDefault" format="float" type="dimen">0.5</item>

frameworks/base/services/core/java/com/android/server/wm/WindowManagerService.java

    private float mWindowAnimationScaleSetting = 0.5f;
    private float mTransitionAnimationScaleSetting = 0.5f;
    private float mAnimatorDurationScaleSetting = 0.5f;

当然，最好还是修改framework的默认值。(framework部分没有实践过，需要自己去尝试一下)

参考

1.《Android开发者选项中动画相关配置，看这篇就够了！！！》