BLINKING TEXTVIEW
SOURCE CODE [Blink.java]
package com.YourPackageName;
import android.os.Handler;
public class Blink
{
private int _interval;
public int getInterval()
{
return _interval;}
public void setInterval(int delay)
{
_interval = delay;}
private Handler handler;
private Runnable _tickHandler;
private Runnable delegate;
private boolean ticking;
public boolean getIsTicking()
{
return ticking;}
public Blink(int interval)
{
_interval = interval;handler = new Handler();
}
public Blink(int interval, Runnable onTickHandler)
{
_interval = interval;setOnTickHandler(onTickHandler);
handler = new Handler();
}
public void start(int interval, Runnable onTickHandler)
{
if (ticking)return;
_interval = interval;
setOnTickHandler(onTickHandler);
handler.postDelayed(delegate, _interval);
ticking = true;
}
public void start()
{
if (ticking)return;
handler.postDelayed(delegate, _interval);
ticking = true;
}
public void stop()
{
handler.removeCallbacks(delegate);ticking = false;
}
public void setOnTickHandler(Runnable onTickHandler)
{
if (onTickHandler == null)return;
_tickHandler = onTickHandler;
delegate = new Runnable()
{
public void run(){
if (_tickHandler == null)return;
_tickHandler.run();
handler.postDelayed(delegate, _interval);
}
};
}
}
SOURCE CODE [TextViewBlinkExample.java]
package com. YourPackageName;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
public class TextViewBlinkExample extends Activity
{
boolean blinkOn = false;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TextView tv = (TextView) findViewById (R.id.textview);
Blink tmrBlink = new Blink(500, new Runnable()
{
public void run()
{
if (blinkOn)
{
tv.setVisibility(View.VISIBLE);
}
else
{
tv.setVisibility(View.INVISIBLE);
}
blinkOn = !blinkOn;
}
});
tmrBlink.start();
}
}
