Java overridePendingTransition 用于平滑地滑入和滑出活动
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overridePendingTransition for sliding activities in and out smoothly
提问by Matt
I'm having trouble figuring out how to slide activities in and out with a push of a button. What I want is for the user to push a button and then the screen slides. The way I want it is for the 1st activity (the one with the button) to slide out to the left while the new 2nd activity slides in from the right.
我无法弄清楚如何通过按下按钮来滑入和滑出活动。我想要的是让用户按下一个按钮，然后屏幕滑动。我想要的方式是第一个活动（带有按钮的活动）向左滑出，而新的第二个活动从右侧滑入。
With the below code, when the button is clicked, the 1st activity slides out to the right when I want it to slide out to the left. Then when it is done sliding, all that is remaining is a black screen for a split second and then the 2nd activity just appears and does not slide in.
使用下面的代码，当单击按钮时，第一个活动在我希望它向左滑出时向右滑出。然后当它完成滑动时，剩下的只是一瞬间的黑屏，然后第二个活动只是出现并且不会滑入。
So the 1st activity is sliding out the incorrect direction and the next activity just appears instead of sliding. What am I doing wrong? I am having a hard time understanding the XML files so hear is the code for everything below.
所以第一个活动滑出不正确的方向，下一个活动只是出现而不是滑动。我究竟做错了什么？我很难理解 XML 文件，所以听到的是下面所有内容的代码。
1st activity
第一次活动
@Override
public void onCreate(Bundle savedInstanceState) {
playBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
Intent intent = new Intent(MainMenu.this, Levels.class);
startActivity(intent);
overridePendingTransition(R.anim.enter_from_right, R.anim.exit_out_left);
}
});
2nd activity
第二个活动
@Override
public void onCreate(Bundle savedInstanceState) {
requestWindowFeature(Window.FEATURE_NO_TITLE);
super.onCreate(savedInstanceState);
setContentView(R.layout.levels);
overridePendingTransition(R.anim.enter_from_left, R.anim.exit_out_right);
So I am thinking that some of my XML files might be incorrect. Here they are.
所以我认为我的一些 XML 文件可能不正确。他们来了。
enter_from_left.xml
enter_from_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="100%"
android:toXDelta="0%" >
</translate>
</set>
enter_from_right.xml
enter_from_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="-100%"
android:toXDelta="0%" >
</translate>
</set>
exit_out_left.xml
exit_out_left.xml
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="0%"
android:toXDelta="-100%" >
</translate>
</set>
exit_out_right.xml
exit_out_right.xml
<?xml version="1.0" encoding="utf-8"?>
<set
xmlns:android="http://schemas.android.com/apk/res/android" >
<translate
android:duration="600"
android:fromXDelta="0%"
android:toXDelta="100%" >
</translate>
</set>
EDITRemoving the overridePendingTransition()from the 2nd activity made it so the 1st activity slides out to the left which is what I wanted. But, when the 1st activity slides away, it still is just revealing a black screen instead of having the 2nd activity slide in from the right.
编辑overridePendingTransition()从第二个活动中
删除使得第一个活动向左滑出，这就是我想要的。但是，当第一个活动滑开时，它仍然只是显示一个黑屏，而不是让第二个活动从右侧滑入。
采纳答案by panini
Instead of overriding the animation in both startActivity()and the new activities onCreate(), you only need to override the animation just after the startActivity()call.
您只需在调用后立即覆盖动画，而不是在两者startActivity()和新活动onCreate()中覆盖动画startActivity()。
The two ints you provide for overridePendingTransition(int enterAnim, int exitAnim)correspond to the two animations - removing the old Activityand adding the new one.
int您提供的两个soverridePendingTransition(int enterAnim, int exitAnim)对应于两个动画 - 删除旧动画Activity并添加新动画。
For your second question, I believe you have the fromXDelta set wrong, -100% should be all the way off the left-handside of the screen, not the right, so changing this to 100% should fix it.
对于您的第二个问题，我相信您的 fromXDelta 设置错误，-100% 应该一直远离屏幕的左侧，而不是右侧，因此将其更改为 100% 应该可以解决它。
回答by mircobabini
There's an error not only in the enter_from_right animation, that should have a fromXDelta of 100% instead of -100%, but even in the enter_from_left animation, that should fave a fromXDelta of -100% instead of 100%.
不仅在 enter_from_right 动画中存在错误，它的 fromXDelta 应该为 100% 而不是 -100%，而且即使在 enter_from_left 动画中，也应该有一个 fromXDelta 为 -100% 而不是 100%。
Cheers,
干杯，
回答by syedjibharat
Change fromXDeltato -100%from enter_from_leftand fromXDeltato 100%from enter_from_rightin your code, this will give you a correct sliding animation.
在您的代码中更改fromXDelta为-100%fromenter_from_left和fromXDeltato 100%from enter_from_right，这将为您提供正确的滑动动画。
回答by Jagie
look at my gist, it works perfectly:
看看我的要点，它完美地工作：
1.Override CommonActivity's startActivity and finish
1.覆盖CommonActivity的startActivity和finish
@Override
public void startActivity(Intent intent) {
super.startActivity(intent);
overridePendingTransition(R.anim.from_right_in, R.anim.from_left_out);
}
@Override
public void finish() {
super.finish();
overridePendingTransition(R.anim.from_left_in, R.anim.from_right_out);
}
2.from_left_in.xml
2.from_left_in.xml
<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>
3.from_right_in.xml
3.from_right_in.xml
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="100%p"
android:toXDelta="0" android:interpolator="@android:interpolator/accelerate_decelerate"
android:duration="300"/>
<alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" />
</set>
4.from_left_out.xml
4.from_left_out.xml
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="0"
android:toXDelta="-100%p"
android:duration="300"/>
<alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" />
</set>
5.from_right_out.xml
5.from_right_out.xml
<set xmlns:android="http://schemas.android.com/apk/res/android">
<translate android:fromXDelta="0"
android:toXDelta="100%p"
android:duration="300"/>
<alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" />
</set>
gist link: https://gist.github.com/JagieChen/f5cc44bf663f3722bd19097be47ccf9b
要点链接：https: //gist.github.com/JagieChen/f5cc44bf663f3722bd19097be47ccf9b
回答by Tom Peak
Don't forget the pivot at this point! fE. Move from up to down. pivotY is 100% that meen's bottom, so your 0% are on the bottom and -100% are up and you don't see it. Makes it more handy when you set the pivot to your border.
在这一点上不要忘记支点！fE。从上往下移动。pivotY 是 meen 底部的 100%，所以你的 0% 在底部，-100% 在上面，你看不到它。将枢轴设置为边框时更方便。
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:fillAfter="true"
android:shareInterpolator="false">
<translate
android:duration="800"
android:fromYDelta="-100%"
android:toYDelta="0%"
android:interpolator="@android:anim/bounce_interpolator"
android:pivotX="50%"
android:pivotY="100%"/>
</set>
