使用 TabHost 和 LocalActivityManager 时未调用 Android OnResume
我设置了一个包含两个活动的 tabhost，由于我无法使用 TabActivity，所以我使用了 LocalActivityManager，但是当我切换选项卡时，不会为选项卡内的活动调用 onResume。这是我的设置：
mlam = new LocalActivityManager(this, false);
mlam.dispatchCreate(savedInstanceState);
tabHost = (TabHost) findViewById(android.R.id.tabhost);
tabHost.setup(mlam);
我将dispatchResume和dispatchPause放置在适当的位置，但它们仅在主选项卡活动获得onResume或onPause时触发。我试图通过在 bab 更改时触发dispatchResume 来解决我的问题，但这似乎没有触发。
tabHost.setOnTabChangedListener(new OnTabChangeListener(){
public void onTabChanged(String tabId) {
mlam.dispatchResume();
}
});
有谁知道如何确保为活动触发 onResume ，以便我可以在选择选项卡时更新选项卡中的内容？
I set up a tabhost with two activities and since I could not use TabActivity I used LocalActivityManager, but when I switch tabs onResume is not called for the Activities within the tabs. Here is my set up:
mlam = new LocalActivityManager(this, false);
mlam.dispatchCreate(savedInstanceState);
tabHost = (TabHost) findViewById(android.R.id.tabhost);
tabHost.setup(mlam);
I have the dispatchResume and dispatchPause placed in the proper places, but they only fire when the main tab activity gets an onResume or onPause. I tried to solve my issue by firing the dispatchResume on bab change but that seems to not be firing.
tabHost.setOnTabChangedListener(new OnTabChangeListener(){
public void onTabChanged(String tabId) {
mlam.dispatchResume();
}
});
Does anyone know how to make sure the onResume is fired for the activities so I can update the content within the tabs as they are selected?
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您必须使用第二个参数 true 来初始化 mlam：
mlam = new LocalActivityManager(this, true);
然后 tabhost 中某个时间只恢复一项活动。
You have to initialize mlam with the second parameter true:
mlam = new LocalActivityManager(this, true);
And then only one activity is resume at the some time in the tabhost.