Splash界面简单实现

Splash界面简单实现

大家都知道，android的应用很多的开始都是有一个Splash界面，

如：

实现起来其实很简单

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实现原理：?

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??? 通过Timer和TimerTask,Handler的结合。Timer来计时，TimerTask来判断是不是已经满足设定时间,hanlder来具体启动新的Activity。

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import java.util.Timer;import java.util.TimerTask;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.MotionEvent;public class SplashActivity extends Activity {private long startTime;private boolean touched=false;private Timer timer ;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);this.setContentView(R.layout.splash);//开启 定时器timer = new Timer(true);startTime = System.currentTimeMillis();timer.schedule(task, 0, 1);}private final TimerTask task = new TimerTask() {public void run() {if (task.scheduledExecutionTime() - startTime == 2000 || touched) {Message message = new Message();message.what = 0;timerHandler.sendMessage(message);timer.cancel();this.cancel();}}};private final Handler timerHandler = new Handler() {public void handleMessage(Message msg) {switch (msg.what) {case 0:SplashActivity.this.finish();// 跳转到新的 activityIntent intent = new Intent(SplashActivity.this,TabMain.class);SplashActivity.this.startActivity(intent);break;}super.handleMessage(msg);}};/** * 点击直接跳转 */public boolean onTouchEvent(MotionEvent event) {if (event.getAction() == MotionEvent.ACTION_DOWN) {touched = true;}return true;}}

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