王学岗属性动画上(九)——使用xml文件配置动画(1)

布局问价只有一张图片，略去

Activity

package com.example.seven;

import android.animation.Animator;
import android.animation.AnimatorInflater;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
@SuppressLint(“NewApi”)
public class MainActivity extends Activity {

private ImageView iv_zhangxin;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    iv_zhangxin = (ImageView) findViewById(R.id.iv_zhangxin);
    MyClick mc = new MyClick();
    iv_zhangxin.setOnClickListener(mc);
}

private class MyClick implements OnClickListener {
    @Override
    public void onClick(View v) {
        //AnimatorInflater：动画加载器，功能类似布局加载器
 Animator animator= AnimatorInflater.loadAnimator(MainActivity.this,R.animator.object_animator_animator_scale_x);
  animator.setDuration(5000);
  animator.setTarget(iv_zhangxin);
  animator.start();
    }

}

}

动画xml文件

文件目录为res/animator/动画xml文件

<LinearLayout 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" tools:context=".MainActivity" >

    <ImageView  android:id="@+id/iv_zhangxin" android:layout_width="100dp" android:layout_height="100dp" android:src="@drawable/ic_launcher" />

</LinearLayout>