我正在使用this文档添加活动转换。我知道我可以为整个活动定义进入和退出过渡,例如explode 但是,如果我想以不同的方式为输入活动的某些视图设置动画,该怎么办?例如,如果我在布局的上半部分有一个视图而在布局的底部有一个视图,我可能想在顶视图上使用向下幻灯片过渡,在底视图上使用向上幻灯片动画。这可以设置吗?
我可以考虑使用scene animations(documented here)并从空视图的两侧引入元素,但我的布局很复杂,我经常迭代它,所以跟踪两个不同的布局并不是很理想。
谢谢!
答案 0 :(得分:2)
终于搞定了!我们的想法是在xml中创建自定义转换并设置目标:
<?xml version="1.0" encoding="utf-8"?>
<transitionSet
xmlns:android="http://schemas.android.com/apk/res/android"
android:transitionOrdering="together">
<slide
android:slideEdge="top">
<targets>
<target android:targetId="@id/toolbar"/>
</targets>
</slide>
<slide
android:slideEdge="bottom">
<targets>
<target android:targetId="@id/text"/>
</targets>
</slide>
</transitionSet>
答案 1 :(得分:-1)
要将动画应用于所需的视图,例如按钮,textview,imageview等,请检查此http://www.androidhive.info/2013/06/android-working-with-xml-animations/
为动画创建四个XML文件: /res/anim/anim_alpha.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/linear_interpolator">
<alpha
android:fromAlpha="1.0"
android:toAlpha="0.1"
android:duration="500"
android:repeatCount="1"
android:repeatMode="reverse" />
</set>
/res/anim/anim_rotate.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/linear_interpolator">
<rotate
android:fromDegrees="0"
android:toDegrees="360"
android:pivotX="50%"
android:pivotY="50%"
android:duration="500"
android:startOffset="0"
android:repeatCount="1"
android:repeatMode="reverse" />
</set>
/res/anim/anim_scale.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/linear_interpolator">
<scale
android:fromXScale="1.0"
android:toXScale="3.0"
android:fromYScale="1.0"
android:toYScale="3.0"
android:pivotX="50%"
android:pivotY="50%"
android:duration="500"
android:repeatCount="1"
android:repeatMode="reverse" />
</set>
/res/anim/anim_translate.xml
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/linear_interpolator">
<translate
android:fromXDelta="0"
android:toXDelta="100%p"
android:duration="500"
android:repeatCount="1"
android:repeatMode="reverse"/>
</set>
main.xml中
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello" />
<Button
android:id="@+id/translate"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Translate" />
<Button
android:id="@+id/alpha"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Alpha" />
<Button
android:id="@+id/scale"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Scale" />
<Button
android:id="@+id/rotate"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Rotate" />
</LinearLayout>
主要活动:
package com.exercise.AndroidAnimButtons;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.Button;
public class AndroidAnimButtonsActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final Animation animTranslate = AnimationUtils.loadAnimation(this, R.anim.anim_translate);
final Animation animAlpha = AnimationUtils.loadAnimation(this, R.anim.anim_alpha);
final Animation animScale = AnimationUtils.loadAnimation(this, R.anim.anim_scale);
final Animation animRotate = AnimationUtils.loadAnimation(this, R.anim.anim_rotate);
Button btnTranslate = (Button)findViewById(R.id.translate);
Button btnAlpha = (Button)findViewById(R.id.alpha);
Button btnScale = (Button)findViewById(R.id.scale);
Button btnRotate = (Button)findViewById(R.id.rotate);
btnTranslate.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
arg0.startAnimation(animTranslate);
}});
btnAlpha.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
arg0.startAnimation(animAlpha);
}});
btnScale.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
arg0.startAnimation(animScale);
}});
btnRotate.setOnClickListener(new Button.OnClickListener(){
@Override
public void onClick(View arg0) {
arg0.startAnimation(animRotate);
}});
}
}