blocks|key|787445|text|如果您正在执行加载屏幕，只需将参数设置为不将其保留在活动堆栈中即可。在定义活动的manifest.xml中，执行以下操作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|787446|<activity+android:name=".LoadingScreen"+android:noHistory="true"+...+/>|code-block|syntax|javascript|787447|在您的代码中，不再需要调用.finish()。只需执行startActivity(i)；|787448|也不需要将当前活动的实例保存在单独的字段中。您始终可以像LoadingScreen.this.doSomething()那样访问它，而不是像private+LoadingScreen+loadingScreen;一样访问它|offset|length|style|CODE|787449|entityMap^0|0|0|0|S|W|1Y|10|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]|$K|W|L|X|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|P|$]]

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:

<pre><code>&lt;activity android:name=".LoadingScreen" android:noHistory="true" ... /&gt;
</code></pre>

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

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

blocks|key|787484|text|您需要从UI线程调用finish()，而不是从后台线程。执行此操作的方法是声明一个Handler，并要求该Handler在UI线程上运行Runnable。例如：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|787485|public+class+LoadingScreen+extends+Activity{
++++private+LoadingScreen+loadingScreen;
++++Intent+i+=+new+Intent(this,+HomeScreen.class);
++++Handler+handler;
++++@Override
++++public+void+onCreate(Bundle+savedInstanceState)+{
++++++++super.onCreate(savedInstanceState);
++++++++handler+=+new+Handler();
++++++++setContentView(R.layout.loading);

++++++++CountDownTimer+timer+=+new+CountDownTimer(10000,+1000)+//10seceonds+Timer
++++++++{
+++++++++++++@Override
+++++++++++++public+void+onTick(long+l)+
+++++++++++++{

+++++++++++++}

+++++++++++++@Override
+++++++++++++public+void+onFinish()+
+++++++++++++{
+++++++++++++++++handler.post(new+Runnable()+{
+++++++++++++++++++++public+void+run()+{
+++++++++++++++++++++++++loadingScreen.finishActivity(0);
+++++++++++++++++++++++++startActivity(i);
+++++++++++++++++++++}
+++++++++++++++++});
+++++++++++++};
++++++++}.start();
++++}
}|code-block|syntax|javascript|787486|entityMap^0|A|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You need to call <code>finish()</code> from the UI thread, not a background thread. The way to do this is to declare a Handler and ask the Handler to run a Runnable on the UI thread. For example:

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

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

 }

 @Override
 public void onFinish() 
 {
 handler.post(new Runnable() {
 public void run() {
 loadingScreen.finishActivity(0);
 startActivity(i);
 }
 });
 };
 }.start();
 }
}
</code></pre>

blocks|key|787514|text|我试着使用这个例子，但它失败了。每次在处理程序中调用finish()/+finishactivity()时，我都会得到这个危险的java.lang.IllegalAccess+Exception。我不确定提出问题的人是如何工作的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|787515|相反，我找到的解决方案是在您的活动中创建一个方法，例如|787516|void+kill_activity()
{+
++++finish();
}|code-block|syntax|javascript|787517|从处理程序的run方法内部调用此方法。这对我来说就像是一个护身符。希望这能帮助那些正在为“如何从不同的线程关闭一个活动？”而苦苦挣扎的人。|787518|entityMap^0|1S|X|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|U|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|V|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

I tried using this example but it failed miserably. Every time I use to invoke finish()/ finishactivity() inside a handler, I end up with this menacing <code>java.lang.IllegalAccess Exception</code>. i'm not sure how did it work for the one who posed the question. 

Instead the solution I found was that create a method in your activity such as 

<pre><code>void kill_activity()
{ 
 finish();
}
</code></pre>

Invoke this method from inside the run method of the handler. This worked like a charm for me. Hope this helps anyone struggling with "how to close an activity from a different thread?".

blocks|key|787582|text|只需调用finish()方法：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|787583|context.finish();|code-block|syntax|javascript|787584|entityMap^0|4|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Just call the <code>finish()</code> method:

<pre><code>context.finish();
</code></pre>

blocks|key|787649|text|当你想开始一个新的活动并完成当前的活动时，你可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|787650|API+11或更高版本|787651|Intent+intent+=+new+Intent(OldActivity.this,+NewActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK+%7C+Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);|code-block|syntax|javascript|787652|API+10或更低版本|787653|Intent+intent+=+new+Intent(OldActivity.this,+NewActivity.class);
intent.setFlags(IntentCompat.FLAG_ACTIVITY_NEW_TASK+%7C+IntentCompat.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);|787654|我希望这能帮助到某人=)|787655|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|V|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

When you want start a new activity and finish the current activity you can do this:

API 11 or greater

<pre><code>Intent intent = new Intent(OldActivity.this, NewActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
</code></pre>

API 10 or lower

<pre><code>Intent intent = new Intent(OldActivity.this, NewActivity.class);
intent.setFlags(IntentCompat.FLAG_ACTIVITY_NEW_TASK | IntentCompat.FLAG_ACTIVITY_CLEAR_TASK);
startActivity(intent);
</code></pre>

I hope this can help somebody =)

blocks|key|787750|text|我找到了很多答案，但没有一个是简单的。我希望这能帮助你..。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|787751|try{
++++Intent+intent+=+new+Intent(CurrentActivity.this,+NewActivity.class);
++++startActivity(intent);
}+finally+{
++++finish();
}|code-block|syntax|javascript|787752|所以，这里是非常简单的逻辑，因为我们知道在java中，我们在try块中编写有可能出现异常的代码，并在catch块中处理异常，但在finally块中，我们编写的代码必须不惜一切代价(无论异常是否发生)。|787753|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I found many answers but not one is simple...
I hope this will help you...

<pre><code>try{
 Intent intent = new Intent(CurrentActivity.this, NewActivity.class);
 startActivity(intent);
} finally {
 finish();
}
</code></pre>

so,
Very simple logic is here, as we know that in java we write code that has some chances of exception in a try block and handle that exception in catch block but in finally block we write code that has to be executed in any cost (Either the exception comes or not).

blocks|key|1002065|text|我所做的是启动一个新的活动，然后关闭当前的活动。所以，记住这条简单的规则：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1002066|finish()
startActivity<...>()|code-block|syntax|javascript|1002067|而不是|1002068|startActivity<...>()
finish()|1002069|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

What I was doing was starting a new activity and then closing the current activity. So, remember this simple rule:

<pre><code>finish()
startActivity&lt;...&gt;()
</code></pre>

and not

<pre><code>startActivity&lt;...&gt;()
finish()
</code></pre>

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

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

It just gives me an exception when it calls the <code>finish()</code> method.

<pre><code>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();
 }
}
</code></pre>

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

How to finish current activity in Android

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个Android应用程序。我正在制作一个带有进度条的加载屏幕。我在onCreate方法中输入了一个延迟。当计时器结束时，我想结束当前的活动并开始一个新的活动。它只是在调用finish()方法时给了我一个异常。public class LoadingScreen extends Activity{    priva...

问如何在Android中完成当前活动
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