属性动画实现图片切换:

1.创建

animator包

2.创建animator.xml文件

<animator xmlns:android="http://schemas.android.com/apk/res/android"
    android:valueFrom="0"
    android:valueTo="100"
    android:valueType="intType"
    android:duration="9000">


</animator>

3.在MainActivity中:

private ImageView iv;
    private Button b;
    private Animator animator;
    private ValueAnimator anInt;
    private int[] a = {R.mipmap.a,R.mipmap.b,R.mipmap.c,R.mipmap.d
                        ,R.mipmap.e,R.mipmap.f,R.mipmap.g,R.mipmap.h};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        iv = (ImageView) findViewById(R.id.iv);
        b = (Button) findViewById(R.id.b);

        anInt = ValueAnimator.ofInt(7,0);
        //anInt.setTarget(b);
        anInt.setDuration(5000);
        anInt.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                int animatedValue = (int) animation.getAnimatedValue();
                iv.setImageResource(a[animatedValue]);
            }
        });


        b.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.b:
                //animator.start();
                anInt.start();
                break;
        }
    }