自定义view实心圆加属性动画

最新推荐文章于 2021-05-25 14:40:26 发布

原创最新推荐文章于 2021-05-25 14:40:26 发布 · 355 阅读

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CC 4.0 BY-SA版权

本文介绍了一个使用XML定义布局的示例，并展示了如何通过Java代码实现视图元素的动画效果，包括设置动画属性和监听动画结束以进行页面跳转。

xml中

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    tools:context="com.bwie.yuekaomoni.MainActivity">
    <com.bwie.yuekaomoni.utils.Circle
        android:id="@+id/circle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</RelativeLayout>

MainActivity

public class MainActivity extends AppCompatActivity {
    private Circle circle;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Circle c= (Circle) findViewById(R.id.circle);
        ObjectAnimator transkationY = ObjectAnimator.ofFloat(c,"translationY", 0, 600f);//动画
        ObjectAnimator transkationX = ObjectAnimator.ofFloat(c,"translationX", 0, 600f);
        AnimatorSet animatorSet = new AnimatorSet();
        animatorSet.play(transkationY).with(transkationX);
        animatorSet.setDuration(3000);
        animatorSet.start();
        animatorSet.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animator) {

            }
            @Override
            public void onAnimationEnd(Animator animator) {
                Intent intent=new Intent(MainActivity.this,ZhuyeActivity.class);
                startActivity(intent);
            }

            @Override
            public void onAnimationCancel(Animator animator) {

            }

            @Override
            public void onAnimationRepeat(Animator animator) {

            }
        });
    }


}
Circle

public class Circle extends View{
    public Circle(Context context) {
        super(context);
    }

    public Circle(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public Circle(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }
    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Paint p=new Paint();
        p.setColor(getResources().getColor(R.color.colorPrimary));
        p.setStrokeWidth(20);
        canvas.drawCircle(50,50,50,p);
    }

}