android时间延时问题的一点解决思路

android时间延时问题的一点解决思路——使用Handler来实现  

public class Strobe extends Activity {

    private LinearLayout mLinearLayout;

    private Handler mHander = new Handler();

    private boolean mActive = false;
    private boolean mSwap = true;  

    private final Runnable mRunnable = new Runnable() {

        public void run() {        
            if (mActive) {
                if (mSwap) {                   
                    mLinearLayout.setBackgroundColor(Color.WHITE);
                    mSwap = false;
                    mHander.postDelayed(mRunnable, 20);
                } else {
                    mLinearLayout.setBackgroundColor(Color.BLACK);
                    mSwap = true;
                    mHander.postDelayed(mRunnable, 100);
                }
            }          
        }
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mLinearLayout = (LinearLayout) findViewById(R.id.strobe);
        startStrobe();
    }

    private void startStrobe() {       
        mActive = true;
        mHander.post(mRunnable);
    }
}

给活动设置一个主题，让它全屏显示。

android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

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