VIDEO
package com.powenko.Tutorial_Animation_Alpha;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.util.Log;
import android.view.animation.AlphaAnimation;
import android.widget.AbsoluteLayout;
import android.widget.AbsoluteLayout.LayoutParams;
import android.widget.Button;
import android.widget.ImageView;
public class Tutorial_Animation_AlphaActivity extends Activity {
/** Called when the activity is first created. */
Button btn = null;
AbsoluteLayout container = null;
int counter = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
container = (AbsoluteLayout)findViewById(R.id.absLayout);
ImageView toAdd = new ImageView(this);
// generate();
Timer timer = new Timer();
timer.scheduleAtFixedRate(new TimerTask() {
@Override
public void run() {
// TODO Auto-generated method stub
timerMethod();
}
}, 0,1000);
}
private void timerMethod()
{
this.runOnUiThread(generate);
}
private Runnable generate= new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
Log.i("MARKER","******************************************");
//int numViews = container.getChildCount();
Context context = getApplicationContext();
ImageView toAdd = new ImageView(context);
Drawable imgContent = context.getResources().getDrawable(R.drawable.icon);
toAdd.setImageDrawable(imgContent);
toAdd.setTag("img"+counter++);
Random rndGen = new Random();
LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT,rndGen.nextInt(300),rndGen.nextInt(300));
toAdd.setLayoutParams(lp);
toAdd.setBackgroundColor(Color.TRANSPARENT);
AlphaAnimation anim = new AlphaAnimation(0, 1);
anim.setDuration(1000);
container.addView(toAdd);
//container.invalidate();
toAdd.startAnimation(anim);
}
};
}
<!--?xml version="1.0" encoding="utf-8"?-->
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