Android：即使在启动画面期间退出应用程序，启动画面也会将应用程序重新打开到第二页

Question

好的，所以我使用本教程创建了一个非常简单的启动画面：

http://p-xr.com/android-tutorial-how-to-make-a-basic-splash-screen/

问题是，如果用户在启动画面期间点击主页按钮或后退按钮退出应用程序，那么应用程序将在启动画面完成后重新打开到第二个屏幕，如果用户这样做了没有出口。

我的代码与教程的代码差不多。有什么帮助吗？

谢谢

Answer 1

我已经修改了代码以更好地利用生命周期方法。喜欢改变它。 :)

   public class SplashScreen extends Activity {

        protected int _splashTime = 5000; 

        private Thread splashTread;

        /** Called when the activity is first created. */
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.splash);


            final SplashScreen sPlashScreen = this; 

            // thread for displaying the SplashScreen
            splashTread = new Thread() {
                @Override
                public void run() {
                    try {                   
                        synchronized(this){
                            wait(_splashTime);
                        }

                    } catch(InterruptedException e) {} 
                    finally {

                        if(!isFinishing()) // This pretty useful boolean val tells if 
 //user has pressed the back button. very useful.
                        {Intent i = new Intent(SplashScreen.this, Main.class);

                        startActivity(i);
                         finish();
                         }


                        stop();
                    }
                }
            };

            splashTread.start();
        }
        @Override
        public boolean onTouchEvent(MotionEvent event) {


            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                Toast.makeText(this,"exec---",Toast.LENGTH_LONG).show();
                synchronized(splashTread){
                    splashTread.notifyAll();
                }
            }
            return true;
        }
        @Override
        protected void onPause() {

            super.onPause();

            if(splashTread.getState()==Thread.State.TIMED_WAITING){
                //Thread is still waiting and Activity is paused. Means user has pressed Home. Bail out
                finish();
            }

        }
    }

我的观点是，启动画面的使用并不频繁，但可能需要。如果您在屏幕后面做繁重的工作（例如游戏）。