我希望像Google Now应用中的卡片一样,逐个动画一些TextViews
。我找到了这个question,我试图按照它的指示,但所有动画都在同时播放。我做错了什么?
这是我想要播放的动画:
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator" >
<translate
android:duration="@integer/config_slide_time"
android:fromYDelta="100%p"
android:toYDelta="0" />
<alpha
android:duration="@integer/config_slide_time"
android:fromAlpha="0.0"
android:toAlpha="1.0" />
<rotate
android:duration="@integer/config_slide_time"
android:fromDegrees="25"
android:pivotX="0"
android:pivotY="0"
android:toDegrees="0" />
</set>
这是我正在使用的布局:
<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:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.yai.properti.tujuh.tujuh.tujuh.ReadUserProfile$PlaceholderFragment" >
<com.yai.app.animation.support.NowLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#e3e3e3"
android:orientation="vertical" >
<TextView
android:id="@+id/txtView"
style="@style/nowCardStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="aaa"
tools:context=".MainActivity" />
<TextView
android:id="@+id/txtView1"
style="@style/nowCardStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="bbb"
tools:context=".MainActivity" />
<TextView
android:id="@+id/txtView2"
style="@style/nowCardStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="ccc"
tools:context=".MainActivity" />
<TextView
android:id="@+id/txtView3"
style="@style/nowCardStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="ddd"
tools:context=".MainActivity" />
<TextView
android:id="@+id/txtView4"
style="@style/nowCardStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="eee"
tools:context=".MainActivity" />
</com.yai.app.animation.support.NowLayout>
</RelativeLayout>
答案 0 :(得分:11)
尝试循环浏览Views
并使用Animation
开始postDelayed()
,如下所示:
View[] views = new View[] { ... };
// 100ms delay between Animations
long delayBetweenAnimations = 100l;
for(int i = 0; i < views.length; i++) {
final View view = views[i];
// We calculate the delay for this Animation, each animation starts 100ms
// after the previous one
int delay = i * delayBetweenAnimations;
view.postDelayed(new Runnable() {
@Override
public void run() {
Animation animation = AnimationUtils.loadAnimation(context, R.anim.your_animation);
view.startAnimation(animation);
}
}, delay);
}
答案 1 :(得分:1)
也许这不是一种标准方式,但它比其他答案更适合我。 我为每个我希望在彼此之后设置动画的视图制作动画资源文件,并为每个下一个动画提供更长的持续时间。 例如,如果我们有三个我们想要从右到左动画的文本视图,我们会像这样制作两个动画文件.xml:
anim1.xml:
<translate
xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="500"
android:toXDelta="0"
android:fromYDelta="0"
android:toYDelta="0"
android:duration="1000">
</translate>
anim2.xml:
<translate
xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="1000"
android:toXDelta="0"
android:fromYDelta="0"
android:toYDelta="0"
android:duration="1500">
</translate>
并且在我的活动中,我将textview设置为:
new AnimationUtils();
Animation anim_one= AnimationUtils.loadAnimation(this, R.anim.anim1);
Animation anim_two = AnimationUtils.loadAnimation(this, R.anim.anim2);
txt1.startAnimation(anim_one);
txt2.startAnimation(anim_two);
答案 2 :(得分:0)
尝试实现animationListener
并为每个textView执行类似的操作
@Override
public void onAnimationEnd(Animation animation) {
another_text.startAnimation(animation1);
}
答案 3 :(得分:0)
要制作视图动画,我们希望视图不可见并随动画一起可见,对吗?
这就是我实现这一目标的方式。
int i = 0;
long delayBetweenAnimations = 100L;
while (viewsContainer.getChildAt(i) != null) {
final View v = viewsContainer.getChildAt(i);
v.setVisibility(View.Gone); //make the view invisible because the animation will take time to start
i++;
long delay = i * delayBetweenAnimations; //increase the delay time so each view's animation take longer time.
v.postDelayed(new Runnable() {
@Override
public void run() {
v.setVisibility(View.VISIBLE); //make the view visible now
Animation animation = AnimationUtils.loadAnimation(context, R.anim.lefttoright);
v.startAnimation(animation);
}
}, delay);
}