属性动画

最新推荐文章于 2024-09-14 00:36:28 发布

原创最新推荐文章于 2024-09-14 00:36:28 发布 · 164 阅读

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CC 4.0 BY-SA版权

本文介绍了一个使用Android视图动画的实例，展示了如何通过代码实现按钮点击触发不同类型的动画效果，包括透明度变化、旋转、位置移动及组合动画等。

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public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    private ImageButton imageButton;
    private Button dan;
    private Button zhuan;
    private Button yi;
    private Button zuhe;
    private Button suo;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Animator animator = AnimatorInflater.loadAnimator(this, R.animator.objectanimator);
        animator.setTarget(imageButton);
        animator.start();

        initView();

    }

    private void initView() {
        imageButton = (ImageButton) findViewById(R.id.imageButton);
        dan = (Button) findViewById(R.id.button);
        zhuan = (Button) findViewById(R.id.button2);
        yi = (Button) findViewById(R.id.button3);
        zuhe = (Button) findViewById(R.id.button4);
        suo = (Button) findViewById(R.id.button5);

        dan.setOnClickListener(this);
        zhuan.setOnClickListener(this);
        yi.setOnClickListener(this);
        zuhe.setOnClickListener(this);
        suo.setOnClickListener(this);
    }

    @Override
    public void onClick(View view) {
        switch (view.getId()){
            case R.id.button:
                ObjectAnimator animator1 = ObjectAnimator.ofFloat(imageButton, "alpha", 1f, 0f, 1f);
                animator1.setDuration(5000);
                animator1.start();
                break;
            case R.id.button2:
                ObjectAnimator animator2 = ObjectAnimator.ofFloat(imageButton, "rotationX", 0f, 360.0f);
                animator2.setDuration(5000);
                animator2.start();
                break;
            case R.id.button3:
                ObjectAnimator animator3 = ObjectAnimator.ofFloat(imageButton, "translationY", 0f, 500f);
                animator3.setDuration(5000);
                animator3.start();
                break;
            case R.id.button4:
                AnimatorSet set = new AnimatorSet();
                ObjectAnimator animator22 = ObjectAnimator.ofFloat(imageButton, "rotationX", 0f, 360.0f);
                ObjectAnimator animator33 = ObjectAnimator.ofFloat(imageButton, "translationX", -500f, 0,500f,0f);
                set.playTogether(animator22,animator33);
                set.setDuration(5000);
                set.start();
                break;
            case R.id.button5:
                ObjectAnimator scaleX = ObjectAnimator.ofFloat(imageButton, "scaleX", 1f, 0f,1f);
                scaleX.setDuration(5000);
                scaleX.start();
                break;
        }
    }
}