Android的启动画面，同时加载MainActivity [英] Android splash screen while loading MainActivity

问题描述

所以，我刚读了这个问题：我如何使机器人启动画面 而不是添加一个固定的延时（如在顶部的答案），但是，我想保持在开机画面上，而MainActivity（带MapFragment）负荷。

So, I just read this question: How do I make a splash screen in android But instead of adding a fixed delay (like in the top answer), I wanted to keep the splash screen on while the MainActivity (with a MapFragment) loads.

    public class SplashScreen extends Activity {
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_splash);

            Thread t = new Thread(new Runnable() {          
                @Override
                public void run() {
                    Intent i = new Intent(SplashScreen.this, MainActivity.class);
                    startActivity(i);
                    synchronized (this) {
                          try {
                            wait(3000);
                            System.out.println("Thread waited for 3 seconds");
                        } catch (InterruptedException e) {
                            // TODO Auto-generated catch block
                            e.printStackTrace();
                        }
                    }       
                }
            });
            try {
                t.start();
                t.join();
                finish();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
}

我添加的等待（3000）行，因为我在这之前该线程没有活早就注意到。但是，如果我让等待更长的时间，但只是一个黑色的屏幕，持续时间更长。出于某种原因，的闪屏的活动将不会显示ImageView的。 我该怎么办？ 谢谢你。

I added the wait(3000) line, because I noticed before that the thread didn't live for long. However, if I make it wait for longer, there's just a black screen that lasts longer. For some reason, the SplashScreen activity won't show the ImageView. What should I do? Thanks.

推荐答案

做这样的启动画面：

while(counter < 1300) {
    try {
            Thread.sleep(1000);
        }catch(InterruptedException e) {
            e.printStackTrace();
        }
        counter+=100;
    }

    Intent intent = new Intent(SplashActivity.this, MainActivity.class);
    startActivity(intent);

希望它能帮助！

Hope it helps!

编辑： Anotehr方法，使飞溅会是这样的：

Anotehr way to make a splash would be like this:

Handler handler = new Handler();
handler.postDelayed(new Runnable() {
    public void run() {
         Intent intent = new Intent(getApplicationContext(), YourNextActivity.class);
         startActivity(intent);
    }
},3000); -> the splash will show for 3000 ms, you can reduce this.

这篇关于Android的启动画面，同时加载MainActivity的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！