Android 如何创建此动画?

Android 如何创建此动画?,android,Android,我想在两个活动之间切换时制作此动画: -- -- 有什么帮助吗?这里是答案: public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ViewFlipper flipper = findViewById(R.id.flipper);

我想在两个活动之间切换时制作此动画:

--

--

有什么帮助吗?

这里是答案:

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

                ViewFlipper flipper = findViewById(R.id.flipper);
                flipper.setOnTouchListener(this);
}

private void myOnTouch(View v, MotionEvent event) {

        switch (event.getAction()) {

        case MotionEvent.ACTION_MOVE:
            mDragged = true;
            break;
        case MotionEvent.ACTION_DOWN:
            mDragged = false;
            mXbefore = event.getX();
            break;
        case MotionEvent.ACTION_UP:

            if(mDragged){
                vf = (ViewFlipper) v;
                mXafter = event.getX();

                if(mXafter > mXbefore){
                    vf.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.right_to_left_in));
                    vf.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.right_to_left_out));
                    vf.showNext();
                }else{
                    vf.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.left_to_right_in));
                    vf.setOutAnimation(AnimationUtils.loadAnimation(this, R.anim.left_to_right_out));
                    vf.showPrevious();
                }
            }

            mDragged = false;
            break;
        default:
            break;
        }
    }
main.xml:

<ViewFLipper id="@+id/flipper">
         <YourLayout />
          <YourLayout />
</ViewFlipper>


在.xml中从右到左:

<?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%p" 
        android:duration="500"/>
    <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="500" />
</set> 


right_to_left_out.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="200%p" 
        android:duration="500"/>
    <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="500" />
</set>


在.xml中从左到右:

<?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="500"/>
    <alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="500" />
</set>


从左到右的xml:

<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
    <translate 
        android:fromXDelta="0%p" 
        android:toXDelta="-100%p" 
        android:duration="500"/>
    <alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="500" />
</set>

这两种方法对于快速解决问题非常有用:

Animation slide_out_left = AnimationUtils.makeOutAnimation(getActivity(),false);
Animation slide_in_right = AnimationUtils.makeInAnimation(getActivity(), true);

Animation slide_out_right = AnimationUtils.makeOutAnimation(getActivity(),true);
Animation slide_in_left = AnimationUtils.makeInAnimation(getActivity(), false);
是方法的doc,正如您将看到的,第二个参数是选择边的标志

结果与之前编写的类似,但需要2行代码,不需要自定义动画的定义