我一直在寻找通过许多谷歌的结果/上的问题在这里确定如何显示/隐藏通过垂直动画视图，但我似乎无法找到一个完全正确与否太含糊。
我有一个布局（撤消巴）这就是下面的另一布局和上述多个其他窗口小部件;该撤消栏应垂直滑动打开和滑动关闭，视情况而定。
目前，所有我现在要做的就是视图设置为可见或消失。
设置该属性android:animateLayoutChanges="true"父布局内。
把视图的布局，如果它不是，并设置android:animateLayoutChanges="true"该布局。
注意：这只能从API等级11+（Android 3.0的）
ViewAnimator：
在XML：
<ViewAnimator
android:id="@+id/animator_message"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:inAnimation="@anim/slide_down_text"
android:outAnimation="@anim/slide_up_text">
<TextView
android:id="@+id/text_message_authentication"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="message_error_authentication" />
<TextView
android:id="@+id/text_message_authentication_connection"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="message_error_authentication_connection" />
<TextView
android:id="@+id/text_message_authentication_empty"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:text="message_error_authentication_field_empty" />
</ViewAnimator>
职能：
public void show(int viewId) {
ViewAnimator animator = (ViewAnimator) findView(animatorId);
View view = findViewById(viewId);
if (animator.getDisplayedChild() != animator.indexOfChild(view)) {
animator.setDisplayedChild(animator.indexOfChild(view));
}
}
private void showAuthenticationConnectionFailureMessage() {
show(R.id.text_message_authentication_connection);
}
我创建了RelativeLayout的扩展，显示/隐藏布局与动画。它可以延长View的任何一种来获得这些功能。
import android.content.Context;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.AnimationUtils;
import android.widget.RelativeLayout;
public class AnimatingRelativeLayout extends RelativeLayout
{
Context context;
Animation inAnimation;
Animation outAnimation;
public AnimatingRelativeLayout(Context context)
{
super(context);
this.context = context;
initAnimations();
}
public AnimatingRelativeLayout(Context context, AttributeSet attrs)
{
super(context, attrs);
this.context = context;
initAnimations();
}
public AnimatingRelativeLayout(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
this.context = context;
initAnimations();
}
private void initAnimations()
{
inAnimation = (AnimationSet) AnimationUtils.loadAnimation(context, R.anim.in_animation);
outAnimation = (Animation) AnimationUtils.loadAnimation(context, R.anim.out_animation);
}
public void show()
{
if (isVisible()) return;
show(true);
}
public void show(boolean withAnimation)
{
if (withAnimation) this.startAnimation(inAnimation);
this.setVisibility(View.VISIBLE);
}
public void hide()
{
if (!isVisible()) return;
hide(true);
}
public void hide(boolean withAnimation)
{
if (withAnimation) this.startAnimation(outAnimation);
this.setVisibility(View.GONE);
}
public boolean isVisible()
{
return (this.getVisibility() == View.VISIBLE);
}
public void overrideDefaultInAnimation(Animation inAnimation)
{
this.inAnimation = inAnimation;
}
public void overrideDefaultOutAnimation(Animation outAnimation)
{
this.outAnimation = outAnimation;
}
}
您可以使用Animation和overrideDefaultInAnimation覆盖掉原有overrideDefaultOutAnimations
我原来的动画都淡入/输出，我加入了XML动画文件翻译/缩小屏幕（翻译到上，从顶部）
in_animation.xml：
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="600"
android:fillAfter="false"
android:fromXDelta="0"
android:fromYDelta="-100%p"
android:toXDelta="0"
android:toYDelta="0" />
out_animation.xml：
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:duration="600"
android:fillAfter="false"
android:fromXDelta="0"
android:fromYDelta="0"
android:toXDelta="0"
android:toYDelta="-100%p" />
这可以合理地在单行声明API 12及以上来实现。下面是其中v是你希望动画视图的例子。
v.animate().translationXBy(-1000).start();
这将通过1000像素滑入问题View了左边。到视图回滑到UI我们可以简单做到以下几点。
v.animate().translationXBy(1000).start();
我希望有人认为这是有用的。
如果你只想要一个动画视线的高度（从0表示到一定数量），你可以实现自己的动画：
final View v = getTheViewToAnimateHere();
Animation anim=new Animation(){
protected void applyTransformation(float interpolatedTime, Transformation t) {
super.applyTransformation(interpolatedTime, t);
// Do relevant calculations here using the interpolatedTime that runs from 0 to 1
v.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, (int)(30*interpolatedTime)));
}};
anim.setDuration(500);
v.startAnimation(anim);
我已经使用这个两个功能隐藏和显示视图与过渡动画顺利。
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void expand(final View v, int duration, int targetHeight, final int position) {
int prevHeight = v.getHeight();
v.setVisibility(View.VISIBLE);
ValueAnimator valueAnimator = ValueAnimator.ofInt(0, targetHeight);
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
v.getLayoutParams().height = (int) animation.getAnimatedValue();
v.requestLayout();
}
});
valueAnimator.setInterpolator(new DecelerateInterpolator());
valueAnimator.setDuration(duration);
valueAnimator.start();
valueAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
v.clearAnimation();
}
});
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void collapse(final View v, int duration, int targetHeight, final int position) {
if (position == (data.size() - 1)) {
return;
}
int prevHeight = v.getHeight();
ValueAnimator valueAnimator = ValueAnimator.ofInt(prevHeight, targetHeight);
valueAnimator.setInterpolator(new DecelerateInterpolator());
valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
v.getLayoutParams().height = (int) animation.getAnimatedValue();
v.requestLayout();
}
});
valueAnimator.setInterpolator(new DecelerateInterpolator());
valueAnimator.setDuration(duration);
valueAnimator.start();
valueAnimator.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
animBoolArray.put(position, false);
v.clearAnimation();
}
});
}
也许你正在寻找的是一个SlidingDrawer。
尝试使用TranslateAnimation类，它创建的位置变化的动画。尝试阅读本求救 - http://developer.android.com/reference/android/view/animation/TranslateAnimation.html
更新：下面是这个例子。如果你有你的视线的高度为50，并在隐藏模式要显示只有10像素。示例代码将是 -
TranslateAnimation anim=new TranslateAnimation(0,0,-40,0);
anim.setFillAfter(true);
view.setAnimation(anim);
PS：有很多的或其他方法来帮助你根据你的需要使用动画。也有看RelativeLayout.LayoutParams如果你想完全自主的代码，但是使用TranslateAnimation更容易使用。
编辑：-Complex使用版本的LayoutParams
RelativeLayout relParam=new RelativeLayout.LayoutParam(RelativeLayout.LayoutParam.FILL_PARENT,RelativeLayout.LayoutParam.WRAP_CONTENT); //you can give hard coded width and height here in (width,height) format.
relParam.topMargin=-50; //any number that work.Set it to 0, when you want to show it.
view.setLayoutParams(relparam);
此示例代码假定你把在RelativeLayout的视图，如果不改变布局的名字，然而，其他的布局可能无法正常工作。如果你想给他们一个动画效果，减少或增加TOPMARGIN慢。您可以考虑使用Thread.sleep（）方法有太多。
尝试这个。
view.animate()
.translationY(0)
.alpha(0.0f)
.setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
super.onAnimationEnd(animation);
view.setVisibility(View.GONE);
}
});
首先，会让你想看到的和做一个布尔值保存如果视图显示视图的高度：
int heigth=0;
boolean showing=false;
LinearLayout layout = (LinearLayout) view.findViewById(R.id.layout);
proDetailsLL.getViewTreeObserver().addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
// gets called after layout has been done but before display
// so we can get the height then hide the view
proHeight = proDetailsLL.getHeight(); // Ahaha! Gotcha
proDetailsLL.getViewTreeObserver().removeGlobalOnLayoutListener(this);
proDetailsLL.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0));
}
});
然后调用该方法用于示出隐藏的视图，并改变布尔值：
slideInOutAnimation(showing, heigth, layout);
proShowing = !proShowing;
方法：
/**
* Method to slide in out the layout
*
* @param isShowing
* if the layout is showing
* @param height
* the height to slide
* @param slideLL
* the container to show
*/
private void slideInOutAnimation(boolean isShowing, int height, final LinearLayout slideLL, final ImageView arroIV) {
if (!isShowing) {
Animation animIn = new Animation() {
protected void applyTransformation(float interpolatedTime, Transformation t) {
super.applyTransformation(interpolatedTime, t);
// Do relevant calculations here using the interpolatedTime that runs from 0 to 1
slideLL.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, (int) (heigth * interpolatedTime)));
}
};
animIn.setDuration(500);
slideLL.startAnimation(animIn);
} else {
Animation animOut = new Animation() {
protected void applyTransformation(float interpolatedTime, Transformation t) {
super.applyTransformation(interpolatedTime, t);
// Do relevant calculations here using the interpolatedTime that runs from 0 to 1
slideLL.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT,
(int) (heigth * (1 - interpolatedTime))));
}
};
animOut.setDuration(500);
slideLL.startAnimation(animOut);
}
}