属性动画

最新推荐文章于 2024-09-14 00:36:28 发布

wittybread

最新推荐文章于 2024-09-14 00:36:28 发布

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CC 4.0 BY-SA版权

文章标签：动画

本文链接：https://blog.youkuaiyun.com/wittybread/article/details/78857602

SplashActivity

public class SplashActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash);
        ImageView img = (ImageView) findViewById(R.id.img);
        //属性动画
        float translationY = img.getTranslationY();
        ObjectAnimator translation = ObjectAnimator.ofFloat(img, "translationY", translationY, 500f);
        ObjectAnimator alpha = ObjectAnimator.ofFloat(img, "alpha", 0f, 1f);
        ObjectAnimator rotation = ObjectAnimator.ofFloat(img, "rotation", 0f, 360f);

        ObjectAnimator scaleY = ObjectAnimator.ofFloat(img, "scaleY", 2f, 1f);
        AnimatorSet animatorSet = new AnimatorSet();
        animatorSet.play(rotation).with(alpha).with(scaleY).with(translation);
        //设置时间
        animatorSet.setDuration(3000);
        //开始
        animatorSet.start();
        animatorSet.addListener(new Animator.AnimatorListener() {
            @Override
            public void onAnimationStart(Animator animator) {

            }

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

            @Override
            public void onAnimationCancel(Animator animator) {

            }

            @Override
            public void onAnimationRepeat(Animator animator) {

            }
        });
    }
}

xml

    <ImageView
        android:id="@+id/img"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:src="@mipmap/ic_launcher" />