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java - Android的RelativeLayout动画问题

转载 作者:行者123 更新时间:2023-12-02 04:09:44 24 4
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我基本上试图用滑动动画将RelativeLayout从屏幕底部(用户视线之外)动画到RelativeLayout的原始位置(如xml编辑器中编码)。类似于 iOS 的上下文框,从底部滑入。

这是我的 XML:

<RelativeLayout 
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffffff">

<TextView
android:id="@+id/welcomemsg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#000000"
android:text="Open Panel
android:textSize="42sp" />

<!-- The layout that slides in from nowhere -->
<RelativeLayout
android:id="@+id/bottomSpinner"
android:layout_width="fill_parent"
android:layout_height="250dp"
android:layout_alignParentBottom="true"
android:background="#ffffff"
android:visibility="visible">

</RelativeLayout>

</RelativeLayout>

我的代码:

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.my_view);

//Start the animation
SlideToAbove();

}

//bottomSpinner is my Slide in Panel
public void SlideToAbove() {
Animation slide = null;
slide = new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.0f,
Animation.RELATIVE_TO_SELF, 0.0f, Animation.RELATIVE_TO_SELF,
0.0f, Animation.RELATIVE_TO_SELF, -5.0f);

slide.setDuration(400);
slide.setFillAfter(true);
slide.setFillEnabled(true);
bottomSpinner.startAnimation(slide);

slide.setAnimationListener(new Animation.AnimationListener() {

@Override
public void onAnimationStart(Animation animation) {

}

@Override
public void onAnimationRepeat(Animation animation) {
}

@Override
public void onAnimationEnd(Animation animation) {

bottomSpinner.clearAnimation();

RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
bottomSpinner.getWidth(), bottomSpinner.getHeight());
lp.addRule(RelativeLayout.ALIGN_PARENT_TOP);
bottomSpinner.setLayoutParams(lp);

}
});
}

Good news: It works.

Bad News: Not how I want it to.

此代码使布局滑入父布局的顶部,而不是遵守布局的“alignParentBottom=true”属性。我希望它从无处滑入并停在父级底部

我应该做出哪些改变?

最佳答案

如果你想从底部滑入,你可以使用简单的 Android 内置动画,如下所示:

Animation animation = AnimationUtils.loadAnimation(this,R.anim.abc_slide_in_bottom);
yourLayout.startAnimation(animation);

关于java - Android的RelativeLayout动画问题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33909114/

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