Android Open Source - irma_android_verifier Animated Arrow

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Back to project page irma_android_verifier.

License

The source code is released under:

GNU General Public License

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Java Source Code

package org.irmacard.androidverifier;
//  ww w  . j  a v  a  2 s .  c o m
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Movie;
import android.util.AttributeSet;
import android.view.View;

/**
 * A view that shows our animated arrow. Please note that this needs android:hardwareAccelerated="false"
 * to be set for the Activity, otherwise the gif movie won't show.
 * @author Maarten Everts, TNO.
 *
 */
public class AnimatedArrow extends View {

    private Movie mMovie;
    private long mMovieStart;
    private Bitmap mBitmap;
    private boolean showAnimation = false;

  public AnimatedArrow(Context context, AttributeSet attrs) {
    super(context, attrs);
        setFocusable(true);
        
        java.io.InputStream is;

        is = context.getResources().openRawResource(R.drawable.irma_arrow);
        mBitmap = BitmapFactory.decodeStream(is);
        
        is = context.getResources().openRawResource(R.drawable.arrows_blue_animated);
        mMovie = Movie.decodeStream(is);
  }

  public void startAnimation() {
    showAnimation = true;
    invalidate();
  }
  
  public void stopAnimation() {
    showAnimation = false;
  }
  
    @Override
    protected void onDraw(Canvas canvas) {
      canvas.drawColor(0xFF004289);
      
      if (showAnimation) {
          long now = android.os.SystemClock.uptimeMillis();
          if (mMovieStart == 0) {   // first time
              mMovieStart = now;
          }
          if (mMovie != null) {
              int dur = mMovie.duration();
              if (dur == 0) {
                  dur = 1000;
              }
              int relTime = (int)((now - mMovieStart) % dur);
              mMovie.setTime(relTime);
              mMovie.draw(canvas, 0, 0);
              invalidate();
          }
      } else {
        canvas.drawBitmap(mBitmap, 0, 0, null);
      }
    }
}

Java Source Code List