android的动画

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package one.bw.com.donghua;import android.animation.Animator;import android.animation.AnimatorSet;import android.animation.ObjectAnimator;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.view.View;import android.view.animation.AccelerateInterpolator;import android.widget.ImageView;import android.widget.Toast;public class MainActivity extends AppCompatActivity {    private ImageView imageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        imageView = (ImageView) findViewById(R.id.image_view);    }    //位移动画    public void trans(View view) {        //参数1，，控件，，参数2，，x或y轴，，参数3，，动画的起始位置，，参数4，，动画的结束位置        ObjectAnimator animator = ObjectAnimator.ofFloat(imageView, "x", imageView.getTop(), 300);        animator.setDuration(3000);//动画执行的时间        animator.setInterpolator(new AccelerateInterpolator());//加速的插值器        animator.start();//启动动画        //动画的监听事件        animator.addListener(new Animator.AnimatorListener() {            @Override            public void onAnimationStart(Animator animator) {            }            @Override            public void onAnimationEnd(Animator animator) {                Toast.makeText(MainActivity.this,"动画结束",Toast.LENGTH_SHORT).show();            }            @Override            public void onAnimationCancel(Animator animator) {            }            @Override            public void onAnimationRepeat(Animator animator) {            }        });    }    //旋转动画    public void rotrate(View view) {        //参数1...控件，，参数2...x或y轴，，，参数3..起始角度，，，参数4...旋转角度        ObjectAnimator animator = ObjectAnimator.ofFloat(imageView, "rotationY", 0, 360);        animator.setDuration(3000);       // animator.setRepeatCount(5);//动画执行的次数        //animator.setRepeatMode(ValueAnimator.REVERSE);//动画执行的模式        animator.start();    }    //透明动画    public void alpha(View view) {        //参数1...控件，，参数2...动画的类型，，，参数3..起始清晰度，，，参数4...结束清晰度        ObjectAnimator animator = ObjectAnimator.ofFloat(imageView, "alpha", 0, 1);        animator.setDuration(3000);        animator.start();    }    //缩放动画    public void scale(View view) {        //参数1...控件，，参数2...动画的类型，，，参数3..起始图片大小，，，参数4...结束图片大小        ObjectAnimator animator = ObjectAnimator.ofFloat(imageView, "scaleX", 0, 2);        ObjectAnimator animator1 = ObjectAnimator.ofFloat(imageView, "scaleY", 0, 2);        animator.setDuration(3000);        animator.start();        animator1.setDuration(3000);        animator1.start();    }    //组合动画    public void zuhe_02(View view) {        ObjectAnimator y = ObjectAnimator.ofFloat(imageView, "y", 0, 250);        ObjectAnimator scaleX = ObjectAnimator.ofFloat(imageView, "scaleX", 0.5f, 2);        ObjectAnimator scaleY = ObjectAnimator.ofFloat(imageView, "scaleY", 0.5f, 2);        ObjectAnimator alpha = ObjectAnimator.ofFloat(imageView, "alpha", 0.5f, 1.0f);        ObjectAnimator rotationX = ObjectAnimator.ofFloat(imageView, "rotationX", 0, 360);        ObjectAnimator rotationY = ObjectAnimator.ofFloat(imageView, "rotationY", 0, 360);        AnimatorSet animatorSet = new AnimatorSet();        animatorSet.play(y).with(scaleX).with(scaleY).with(alpha);        animatorSet.setDuration(5000);        animatorSet.start();    }}
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