属性动画平移、旋转

最新推荐文章于 2024-04-03 22:53:05 发布

Jackson Hao

最新推荐文章于 2024-04-03 22:53:05 发布

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CC 4.0 BY-SA版权

分类专栏：基础文章标签：平移动画旋转动画

本文链接：https://blog.youkuaiyun.com/weixin_42630640/article/details/85944975

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本文展示了一个使用XML布局和Activity实现的动画示例。在示例中，一个ImageView组件通过ObjectAnimator实现了平移、旋转、透明度变化和缩放动画效果。动画设置在一个AnimatorSet中，以5秒为周期播放，并在动画结束后启动新的Activity。

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一、xml

<ImageView
        android:id="@+id/imag"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:background="@drawable/ic_launcher_background"
        />

二、Activity


public class MainActivity extends AppCompatActivity {

    private ImageView imagbabi;
    private LinearLayout root;
    private int width;
    private int height;
    private AnimatorSet animatorSet;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        imagbabi = findViewById(R.id.imag);
        root = findViewById(R.id.ly_root);
        ObjectAnimator translationY = ObjectAnimator.ofFloat(imagbabi, "translationY", imagbabi.getTranslationY(), 800);
        ObjectAnimator rotation = ObjectAnimator.ofFloat(imagbabi, "rotation", 0, 360);
        ObjectAnimator alpha = ObjectAnimator.ofFloat(imagbabi, "alpha", 1, 2, 3);
        ObjectAnimator scaleX = ObjectAnimator.ofFloat(imagbabi, "scaleX", 0, 1);
        animatorSet = new AnimatorSet();
        animatorSet.play(translationY).with(rotation).with(alpha).with(scaleX);
        animatorSet.setDuration(5000);
        animatorSet.start();
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                     startActivity(new Intent(MainActivity.this,ShowActivity.class));
                     finish();
            }
        },5000);


    }
}