如何完成在Android的当前活动

问题描述

我有一个Android应用程序。我想提出一个加载屏幕与进度条。

I have an Android application. I am making a loading screen with a progress bar.

我进入了onCreate方法的延迟。当计时器结束，我要完成当前活动，并开始一个新的。

I entered a delay in the onCreate method. When the timer finishes, I want to finish the current activity and start a new one.

这只是当它调用结束给我一个例外（）方法。

public class LoadingScreen extends Activity{
    private LoadingScreen loadingScreen;
    Intent i = new Intent(this, HomeScreen.class);
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.loading);

        CountDownTimer timer = new CountDownTimer(10000, 1000) //10 second Timer
        {
            public void onTick(long l)
            {

            }

            @Override
            public void onFinish()
            {
                loadingScreen.finishActivity(0);
                startActivity(i);
            };
        }.start();
    }
}

我怎样才能改变code，使其结束时进度条完成？

How can I change the code so that it ends when the progress bar is done?

推荐答案

如果你正在做一个载入画面，只需将该参数设置为不保持它在活动栈。在您的manifest.xml，在那里你定义您的活动做的：

If you are doing a loading screen, just set the parameter to not keep it in activity stack. In your manifest.xml, where you define your activity do:

<activity android:name=".LoadingScreen" android:noHistory="true" ... />

而在你的code没有必要调用.finish（）了。只要做到startActivity（我）;

And in your code there is no need to call .finish() anymore. Just do startActivity(i);

也没有必要保持当前活动的实例，在一个单独的领域。您可以随时访问它像 LoadingScreen.this.doSomething（）而不是私人LoadingScreen loadingScreen;

There is also no need to keep a instance of your current activity in a separate field. You can always access it like LoadingScreen.this.doSomething() instead of private LoadingScreen loadingScreen;

这篇关于如何完成在Android的当前活动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！