《android 的四中动画效果》

《android 的四中动画效果》

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<RelativeLayout xmlns:android=""xmlns: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=".MainActivity" ><Buttonandroid:id="@+id/button1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignParentBottom="true"android:layout_centerHorizontal="true"android:text="Button" /><Buttonandroid:id="@+id/button2"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_above="@+id/button1"android:layout_alignLeft="@+id/button1"android:layout_marginBottom="20dp"android:text="Button" /><Buttonandroid:id="@+id/button3"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_above="@+id/button2"android:layout_alignLeft="@+id/button2"android:layout_marginBottom="16dp"android:text="Button" /><Buttonandroid:id="@+id/button4"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_above="@+id/button3"android:layout_alignRight="@+id/button3"android:layout_marginBottom="38dp"android:text="Button" /><ImageViewandroid:id="@+id/imageView1"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_alignLeft="@+id/button4"android:layout_alignParentTop="true"android:layout_marginTop="26dp"android:src="@drawable/ic_launcher" />
</RelativeLayout>

这是布局文件

package ve;
import android.os.Bundle;
import android.app.Activity;
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.RotateAnimation;
import android.view.animation.ScaleAnimation;
import android.view.animation.TranslateAnimation;
import android.widget.Button;
import android.widget.ImageView;
public class MainActivity extends Activity {private Button alphaBut;//淡静淡出private ImageView imageView;private Button rotateBut;//旋转private Button scaleBut;//缩小也可以放大private Button tranBut;//移动@Overrideprotected void onCreate(Bundle savedInstanceState) {Create(savedInstanceState);setContentView(R.layout.activity_main);alphaBut=(Button) findViewById(R.id.button1);rotateBut=(Button) findViewById(R.id.button2);scaleBut=(Button) findViewById(R.id.button3);tranBut=(Button) findViewById(R.id.button4);imageView=(ImageView) findViewById(R.id.imageView1);alphaBut.setOnClickListener(new AlphaButoon());rotateBut.setOnClickListener(new RotateButoon());scaleBut.setOnClickListener(new ScaleButoon());tranBut.setOnClickListener(new TranButoon());}class TranButoon implements OnClickListener{@Overridepublic void onClick(View arg0) {AnimationSet animationSet=new AnimationSet(true);Animation animation=new TranslateAnimation(Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);animation.setDuration(2000);animationSet.addAnimation(animation);imageView.startAnimation(animationSet);tranBut.startAnimation(animationSet);}}class ScaleButoon implements OnClickListener{@Overridepublic void onClick(View arg0) {AnimationSet animationSet=new AnimationSet(true);Animation animation=new ScaleAnimation(1, 0.5f, 1, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,0.5f);animation.setDuration(2000);animationSet.addAnimation(animation);imageView.startAnimation(animationSet);scaleBut.startAnimation(animationSet);}}class AlphaButoon implements OnClickListener{@Overridepublic void onClick(View arg0) {AnimationSet animationSet=new AnimationSet(true);Animation animation=new AlphaAnimation(0, 1);animation.setDuration(2000);animationSet.addAnimation(animation);imageView.startAnimation(animationSet);alphaBut.startAnimation(animationSet);}}class RotateButoon implements OnClickListener{@Overridepublic void onClick(View arg0) {AnimationSet animationSet=new AnimationSet(true);//0-360从那个角度转到那个角度，X轴的参考值，0,5f百分之50，Y轴的参考值，0,5f百分之50Animation rotate=new RotateAnimation(0, 360,Animation.RELATIVE_TO_PARENT,0.5f,Animation.RELATIVE_TO_PARENT,0.5f);Animation alpha=new AlphaAnimation(0, 1);rotate.setDuration(2000);animationSet.addAnimation(rotate);alpha.setDuration(100);animationSet.addAnimation(alpha);imageView.startAnimation(animationSet);rotateBut.startAnimation(animationSet);}}
}

主函数

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