Android控件Tween动画(补间动画)实现方法示例

public class TweenActivity extends Activity {  private SeekBar seekBarX;// 拖动条控件  private SeekBar seekBarY;  private SeekBar scaleSeekBarX;  private SeekBar scaleSeekBarY;  private SeekBar rotationSeekBarX;  private SeekBar rotationSeekBarY;  private SeekBar rotationSeekBarZ;  private Button button;  @Override  public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_tween);    initViews();    initEvents();  }    private void initViews() {    button = (Button) findViewById(R.id.button);    seekBarX = (SeekBar) findViewById(R.id.translationX);    seekBarX.setMax(400);    seekBarY = (SeekBar) findViewById(R.id.translationY);    seekBarY.setMax(800);    scaleSeekBarX = (SeekBar) findViewById(R.id.scaleX);    scaleSeekBarX.setMax(50);    scaleSeekBarX.setProgress(10);    scaleSeekBarY = (SeekBar) findViewById(R.id.scaleY);    scaleSeekBarY.setMax(50);    scaleSeekBarY.setProgress(10);    rotationSeekBarX = (SeekBar) findViewById(R.id.rotationX);    rotationSeekBarX.setMax(360);    rotationSeekBarY = (SeekBar) findViewById(R.id.rotationY);    rotationSeekBarY.setMax(360);    rotationSeekBarZ = (SeekBar) findViewById(R.id.rotationZ);    rotationSeekBarZ.setMax(360);  }    private void initEvents() {    // 按钮X方向平移动画    seekBarX.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {      public void onStopTrackingTouch(SeekBar seekBar) {      }      public void onStartTrackingTouch(SeekBar seekBar) {      }      public void onProgressChanged(SeekBar seekBar, int progress,          boolean fromUser) {        // X方向平移        button.setTranslationX((float) progress);      }    });    // 按钮Y方向平移动画    seekBarY.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {      public void onStopTrackingTouch(SeekBar seekBar) {      }      public void onStartTrackingTouch(SeekBar seekBar) {      }      public void onProgressChanged(SeekBar seekBar, int progress,          boolean fromUser) {        // Y方向平移        button.setTranslationY((float) progress);      }    });    // 按钮X方向缩放动画    scaleSeekBarX        .setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {          public void onStopTrackingTouch(SeekBar seekBar) {          }          public void onStartTrackingTouch(SeekBar seekBar) {          }          public void onProgressChanged(SeekBar seekBar,              int progress, boolean fromUser) {            // X方向缩放            button.setScaleX((float) progress / 10f);          }        });    // 按钮Y方向缩放动画    scaleSeekBarY        .setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {          public void onStopTrackingTouch(SeekBar seekBar) {          }          public void onStartTrackingTouch(SeekBar seekBar) {          }          public void onProgressChanged(SeekBar seekBar,              int progress, boolean fromUser) {            // Y方向缩放            button.setScaleY((float) progress / 10f);          }        });    // 按钮X方向旋转动画    rotationSeekBarX        .setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {          public void onStopTrackingTouch(SeekBar seekBar) {          }          public void onStartTrackingTouch(SeekBar seekBar) {          }          public void onProgressChanged(SeekBar seekBar,              int progress, boolean fromUser) {            // X方向旋转            button.setRotationX((float) progress);          }        });    // 按钮Y方向旋转动画    rotationSeekBarY        .setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {          public void onStopTrackingTouch(SeekBar seekBar) {          }          public void onStartTrackingTouch(SeekBar seekBar) {          }          public void onProgressChanged(SeekBar seekBar,              int progress, boolean fromUser) {            // Y方向旋转            button.setRotationY((float) progress);          }        });    // 按钮Z方向旋转动画    rotationSeekBarZ        .setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {          public void onStopTrackingTouch(SeekBar seekBar) {          }          public void onStartTrackingTouch(SeekBar seekBar) {          }          public void onProgressChanged(SeekBar seekBar,              int progress, boolean fromUser) {            // 设置旋转            button.setRotation((float) progress);          }        });  }}