Android Splash界面简单实现

jopen 10年前

大家都知道，android的应用很多的开始都是有一个Splash界面，

如：


Android Splash界面简单实现

实现起来其实很简单

 

实现原理： 

 

    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。


Android Splash界面简单实现 
    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 activity                        Intent 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;            }        }