Android Open Source - SaldoClick Now Animation Layout

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Back to project page SaldoClick.

License

The source code is released under:

GNU General Public License

Java Source Code

package it.devcando.saldoclick;
/*www .  j a  v  a  2 s  .  c  o  m*/
import it.devcando.saldoclick.R;
import android.content.Context;
import android.os.Build;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewTreeObserver;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.animation.AnimationUtils;
import android.widget.RelativeLayout;

public class NowAnimationLayout extends RelativeLayout implements OnGlobalLayoutListener {

  public NowAnimationLayout(Context context, AttributeSet attrs) {
    super(context, attrs);
    initLayoutObserver();
  }

  public NowAnimationLayout(Context context) {
    super(context);
    initLayoutObserver();
  }

  private void initLayoutObserver() {
    getViewTreeObserver().addOnGlobalLayoutListener(this);
  }

  @Override
  public void onGlobalLayout() {
    removeOnGlobalLayoutListener(this, this);

    final int heightPx = getContext().getResources().getDisplayMetrics().heightPixels;

    boolean inversed = false;
    final int childCount = getChildCount();

    for (int i = 0; i < childCount; i++) {
      View child = getChildAt(i);

      int[] location = new int[2];

      child.getLocationOnScreen(location);

      if (location[1] > heightPx) {
        break;
      }

      if (!inversed) {
        child.startAnimation(AnimationUtils.loadAnimation(getContext(),
            R.anim.slide_up_left));
      } else {
        child.startAnimation(AnimationUtils.loadAnimation(getContext(),
            R.anim.slide_up_right));
      }

      inversed = !inversed;
    }

  }
  
  @SuppressWarnings("deprecation")
  public static void removeOnGlobalLayoutListener(View v, ViewTreeObserver.OnGlobalLayoutListener listener){
      if (Build.VERSION.SDK_INT < 16) {
          v.getViewTreeObserver().removeGlobalOnLayoutListener(listener);
      } else {
          v.getViewTreeObserver().removeOnGlobalLayoutListener(listener);
      }
  }

}

Java Source Code List

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