Android自定義閃爍的文本

自定義閃爍文本，直接代碼搞上：

package custom.text.view;

import java.util.Timer;
import java.util.TimerTask;

import android.content.Context;
import android.graphics.Color;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.util.Log;
import android.widget.TextView;

/***
 * @author tianbx
 * @version 1.0
 * 閃爍的文本
 * */
public class FlickerTextView extends TextView {
    private static final String LOG_TAG = "FlickerTextView";
    boolean change = false;
    private Handler handler = null;

    public FlickerTextView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        Log.e(LOG_TAG, "super(context, attrs, defStyle)");
        startFlicker();
        // TODO Auto-generated constructor stub
    }

    public FlickerTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        startFlicker();
        Log.e(LOG_TAG, "super(context, attrs)");
        // TODO Auto-generated constructor stub
    }

    public FlickerTextView(Context context) {
        super(context);
        startFlicker();
        Log.e(LOG_TAG, "FlickerTextView(Context context)");
    }



    public void startFlicker(){
        handler = new Handler(){
            @Override
            public void dispatchMessage(Message msg) {
                if(change){
                    change = false;
                    setTextColor(Color.TRANSPARENT); //這個是透明，=看不到文字
                }else{
                    change = true;
                    setTextColor(Color.RED);
                }
            }
        };

        Timer timer = new Timer();
        TimerTask task = new TimerTask() {
            @Override
            public void run() {
                Message msg = new Message();
                handler.sendMessage(msg);
            }
        };
        timer.schedule(task,1,300);  //參數分別是delay（多長時間后執行），duration（執行間隔）
    }


}