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原文:Android background updates

I have set my app to update four xml feeds in the background (if a user has selected the option) via an AlarmManager and a BroadcastReceiver. This works perfectly on a wi-fi network, however, ...

EditText 请求重点
原文:EditText request focus

I am designing a login page as: UserName: ..... Password: ..... LoginButton When the activity starts, I want the focus to go to "UserName" textbox and the keyboard to appear. I am using ...

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