java类android.view.animation.ScaleAnimation的实例源码

private void animateButtonIn(View button, int delay) {
  AnimationSet animation = new AnimationSet(true);
  Animation scale = new ScaleAnimation(0.0f, 1.0f, 0.0f, 1.0f,
                                       Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.0f);

  animation.addAnimation(scale);
  animation.setInterpolator(new OvershootInterpolator(1));
  animation.setDuration(ANIMATION_DURATION);
  animation.setStartOffset(delay);
  button.startAnimation(animation);
}

public void show() {
  if (!isEnabled() || getVisibility() == VISIBLE) return;

  setVisibility(VISIBLE);

  AnimationSet animation = new AnimationSet(true);
  animation.addAnimation(new ScaleAnimation(0, 1, 1, 1, Animation.RELATIVE_TO_SELF, 1f, Animation.RELATIVE_TO_SELF, 0.5f));
  animation.addAnimation(new AlphaAnimation(0, 1));
  animation.setDuration(100);

  animateWith(animation);
}

private void addTextZoomAnimations(AnimationSet set) {
    ScaleAnimation mScaleAnim = new ScaleAnimation(1, SCALE_AMOUNT, 1f, SCALE_AMOUNT, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    mScaleAnim.setDuration(CHARACTER_ANIM_DURATION);
    set.addAnimation(mScaleAnim);
    ScaleAnimation mScaleDownAnim = new ScaleAnimation(1, SCALE_AMOUNT, 1f, SCALE_AMOUNT, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    mScaleDownAnim.setDuration(CHARACTER_ANIM_DURATION);
    mScaleDownAnim.setStartOffset(CHARACTER_ANIM_DURATION + 20);
    mScaleDownAnim.setFillAfter(true);
    set.addAnimation(mScaleDownAnim);
    set.setInterpolator(interpolator);
}

private void addLoopScaleAnimations(long duration, AnimationSet set) {
    ScaleAnimation mScaleAnim = new ScaleAnimation(1, SCALE_AMOUNT, 1f, SCALE_AMOUNT, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    mScaleAnim.setDuration(duration);
    set.addAnimation(mScaleAnim);
    ScaleAnimation mScaleDownAnim = new ScaleAnimation(SCALE_AMOUNT, 1, SCALE_AMOUNT, 1, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
    mScaleDownAnim.setDuration(duration);
    mScaleDownAnim.setStartOffset(duration + 50);
    set.addAnimation(mScaleDownAnim);
    set.setInterpolator(interpolator);
}

@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
    super.onSizeChanged(w, h, oldw, oldh);
    WIDTH = w;
    HEIGHT = h;

    scaleAnimation = new ScaleAnimation(1.0f, zoomScale, 1.0f, zoomScale, w / 2, h / 2);
    scaleAnimation.setDuration(zoomDuration);
    scaleAnimation.setRepeatMode(Animation.REVERSE);
    scaleAnimation.setRepeatCount(1);
}

@Override
public void onClick(View view) {

    //Extract values from children
    LinearLayout rowsView = (LinearLayout) rootView.findViewById(R.id.repeatable_items);

    ArrayList<String> row = new ArrayList<>();
    for (int i = 0; i < rowsView.getChildCount(); ++i) {
        EditText et = (EditText) rowsView.getChildAt(i).findViewById(R.id.input_row);
        row.add(et.getText().toString());
    }
    fq.addRow(row);
    TextView tvCount = (TextView) rootView.findViewById(R.id.question_items_count);

    tvCount.setText(fq.getRows().size() + " items");
    Toast.makeText(FormSolverActivity.this, "SAVED", Toast.LENGTH_SHORT).show();

    Animation animation = new ScaleAnimation(1,1.1f,1,1.1f);
    animation.setDuration(300);
    animation.setRepeatMode(Animation.REVERSE);
    animation.setRepeatCount(1);
    tvCount.startAnimation(animation);

    //Remove any child from view
    ((LinearLayout) rootView.findViewById(R.id.repeatable_items)).removeAllViews();
    ((Button) rootView.findViewById(R.id.question_add_response_instance)).setText(getString(R.string.action_new_row));
    rootView.findViewById(R.id.question_add_response_instance).setOnClickListener(new onRowAddedListener(rootView, fq));
    fab.show();
}

/**
 * 生成ScaleAnimation
 */
protected Animation getScaleAnimation(float fromX, float toX, float fromY, float toY, int pivotXType, float pivotXValue, int pivotYType, float pivotYValue) {
    Animation scaleAnimation = new ScaleAnimation(fromX, toX, fromY, toY, pivotXType, pivotXValue, pivotYType,
            pivotYValue);
    scaleAnimation.setDuration(300);
    scaleAnimation.setFillEnabled(true);
    scaleAnimation.setFillAfter(true);
    return scaleAnimation;
}

/**
 * 生成自定义ScaleAnimation
 */
protected Animation getDefaultScaleAnimation() {
    Animation scaleAnimation = new ScaleAnimation(0f, 1f, 0f, 1f, Animation.RELATIVE_TO_SELF, 0.5f,
            Animation.RELATIVE_TO_SELF, 0.5f);
    scaleAnimation.setDuration(300);
    scaleAnimation.setInterpolator(new AccelerateInterpolator());
    scaleAnimation.setFillEnabled(true);
    scaleAnimation.setFillAfter(true);
    return scaleAnimation;
}

/**
 * 缩放+旋转动画进入
 * @param view  动画作用的视图
 * @param durationMillis    动画持续的时间
 * @param delayMillis     经过多少毫秒播放动画
 */
public static void scaleRotateIn(View view, long durationMillis, long delayMillis) {
    ScaleAnimation animation1 = new ScaleAnimation(0, 1, 0, 1, rela1, 0.5f, rela1, 0.5f);
    RotateAnimation animation2 = new RotateAnimation(0, 360, rela1, 0.5f, rela1, 0.5f);
    AnimationSet animation = new AnimationSet(false);
    animation.addAnimation(animation1);
    animation.addAnimation(animation2);
    baseIn(view, animation, durationMillis, delayMillis);
}

/**
 * 缩放+旋转动画出来
 * @param view  动画作用的视图
 * @param durationMillis    动画持续的时间
 * @param delayMillis     经过多少毫秒播放动画
 */
public static void scaleRotateOut(View view, long durationMillis, long delayMillis) {
    ScaleAnimation animation1 = new ScaleAnimation(1, 0, 1, 0, rela1, 0.5f, rela1, 0.5f);
    RotateAnimation animation2 = new RotateAnimation(0, 360, rela1, 0.5f, rela1, 0.5f);
    AnimationSet animation = new AnimationSet(false);
    animation.addAnimation(animation1);
    animation.addAnimation(animation2);
    baseOut(view, animation, durationMillis, delayMillis);
}