animation 之xml控制

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原创：kylin_zeng http://blog.chinaunix.net/uid/23795897.html在此感谢mars 老师的帮助。转载请注明原创出处，尊重他人的劳动成果。

二、第二种使用：

1、在res文件夹厦门新建一个anim的文件夹；

2、创建xml文件，并首先要加入set标签，如下：
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator">
</set>

3、在该标签当中加入rotate，alpha,scale或者translate标签。

4、在代码中使用AnimationUtils当中转载xml 文件，并生产Animation对象。

例如：
1、在res下面建立一个anim文件夹。

2、里面创建了四个xml文件，alpha.xml,

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<?xml version=@H_403_50@"1.0" encoding=@H_403_50@"utf-8"?>
<set xmlns:android=@H_403_50@"http://schemas.android.com/apk/res/android"
android:interpolator=@H_403_50@"@android:anim/accelerate_interpolator">
<alpha
android:fromAlpha=@H_403_50@"1.0"
android:toAlpha=@H_403_50@"0.0"
android:startOffset=@H_403_50@"500"
android:duration=@H_403_50@"500" />
</set>

rotate.xml,

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<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator">
<rotate android:fromDegrees="0"
android:toDegrees="360"
android:pivotX="50%"
//这里有三种表示方法：50 ：是绝对坐标，表示屏幕上真正的50，对应代码控制中的toplant,
// 50% : 是相对坐标，表示相对自身控件的50%，即控件的中心点。
// 50%p: 是相对于父控件，表示父控件的50%位置。
android:pivotY="50%"
android:duration="5000" />
</set>

scale.xml,

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<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android"
android:interpolator="@android:anim/accelerate_interpolator">
<scale android:fromXScale="1.0"
android:toXScale="0.0"
android:fromYScale="1.0"
android:toYScale="0.0"
android:pivotX="50%"
android:pivotY="50%"
android:duration="2000" />
</set>

translate.xml

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<?xml version=@H_403_50@"1.0" encoding=@H_403_50@"utf-8"?>
<set xmlns:android=@H_403_50@"http://schemas.android.com/apk/res/android"
android:interpolator=@H_403_50@"@android:anim/accelerate_interpolator">
<translate
android:fromXDelta=@H_403_50@"50%"
android:toXDelta=@H_403_50@"100%"
android:fromYDelta=@H_403_50@"0%"
android:toYDelta=@H_403_50@"100%"
android:duration=@H_403_50@"2000" />
</set>

4、调用：

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package mars.animations02;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationSet;
import android.view.animation.AnimationUtils;
import android.view.animation.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
private ImageView imageView = null;
private Button rotateButton = null;
private Button scaleButton = null;
private Button alphaButton = null;
private Button translateButton = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageView = (ImageView) findViewById(R.id.imageViewId);
rotateButton = (Button) findViewById(R.id.rotateButtonId);
rotateButton.setOnClickListener(new RotateButtonListener());
scaleButton = (Button) findViewById(R.id.scaleButtonId);
scaleButton.setOnClickListener(new ScaleButtonListener());
alphaButton = (Button) findViewById(R.id.alphaButtonId);
alphaButton.setOnClickListener(new AlphaButtonListener());
translateButton = (Button) findViewById(R.id.translateButtonId);
translateButton.setOnClickListener(new TranslateButtonListener());
}
private class RotateButtonListener implements OnClickListener {
@Override
public void onClick(View view) {
Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.rotate);
imageView.startAnimation(animation);
}
}
private class ScaleButtonListener implements OnClickListener {
@Override
public void onClick(View view) {
Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.sacle);
imageView.startAnimation(animation);
}
}
private class AlphaButtonListener implements OnClickListener {
@Override
public void onClick(View view) {
//使用AnimationUtils装载动画设置文件
Animation animation = AnimationUtils.loadAnimation(MainActivity.this, R.anim.alpha);
imageView.startAnimation(animation);
}
}
private class TranslateButtonListener implements OnClickListener {
@Override
public void onClick(View view) {
Animation animation = (Animation) AnimationUtils.loadAnimation(MainActivity.this, R.anim.translate);
imageView.startAnimation(animation);
}
}
}

02_09.zip 原文链接：https://www.f2er.com/xml/297494.html

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