安卓：从后面堆栈中删除所有的previous活动 [英] Android: Remove all the previous activities from the back stack
问题描述
当我点击的注销我个人资料活动按钮，我想利用用户的登录页，在那里他需要使用新的凭据。
When i am clicking on Logout button in my Profile Activity i want to take user to Login page, where he needs to use new credentials.
所以我用这个code：
Hence i used this code:
Intent intent = new Intent(ProfileActivity.this,
LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
在 onButtonClick 注销按钮。
但问题是，当我点击设备的后退按钮就可以把我的ProfileActivity登录活动。我期待应用程序应该关闭的时候我preSS装置后退按钮上LoginActivity。
But the problem is when i click device back button on the Login Activity it takes me to the ProfileActivity. I was expecting the application should close when i press device back button on LoginActivity.
我究竟做错了什么？
我还添加了安卓launchMode =singleTop在清单中为我的 LoginActivity
I also added android:launchMode="singleTop" in the manifest for my LoginActivity
感谢您
推荐答案
下面是一个解决方案，当您使用注销按钮来清除所有应用程序的活动。
Here is one solution to clear all your application's activities when you use the logout button.
您启动活动时，都会启动它是这样的：
Every time you start an Activity, start it like this:
Intent myIntent = new Intent(getBaseContext(), YourNewActivity.class);
startActivityForResult(myIntent, 0);
当你想关闭整个应用程序，做到这一点：
When you want to close the entire app, do this:
setResult(RESULT_CLOSE_ALL);
finish();
RESULT_CLOSE_ALL是一个唯一的整数最终的全局变量信号要关闭所有活动。
RESULT_CLOSE_ALL is a final global variable with a unique integer to signal you want to close all activities.
然后定义每一个活动的 onActivityResult（...）回调，所以当一个活动返回与RESULT_CLOSE_ALL价值，这也叫完成（）：
Then define every activity's onActivityResult(...) callback so when an activity returns with the RESULT_CLOSE_ALL value, it also calls finish():
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(resultCode)
{
case RESULT_CLOSE_ALL:
setResult(RESULT_CLOSE_ALL);
finish();
}
super.onActivityResult(requestCode, resultCode, data);
}
这将导致关闭所有的活动产生连带效应。
This will cause a cascade effect that closes all your activities.
这是一个黑客但是并使用 startActivityForResult 的方式，它不是设计来使用。
This is a hack however and uses startActivityForResult in a way that it was not designed to be used.
也许一个更好的方式来做到这一点是使用广播接收器，如下所示：
Perhaps a better way to do this would be using broadcast receivers as shown here:
<一个href="http://stackoverflow.com/questions/3007998/on-logout-clear-activity-history-stack-$p$pventing-back-button-from-opening-l/3008684#3008684">On注销，明确活动历史堆栈，preventing＆QUOT;返回]无法打开登录的，只有Activites
请参阅这些线程的其他方法还有：
See these threads for other methods as well:
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