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UITableView backgroundColor always gray on iPad
...ector(backgroundView)]) self.tableView.backgroundView = nil; otherwise you app will crash and exit abruptly, you can trust me!
– rjobidon
May 5 '10 at 23:50
1
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把列表里每个数都乘以 2，一块积木就够：App Inventor 的「映射列表」 - Ap...
...样能做，但要四五块积木，还要多一个全局或局部变量。App Inventor 其实专门为这件事准备了一块积木。
答案：「创建新列表 逐一映射」
打开内置块的「列表」抽屉，往下翻，能找到这一块：
创建新列表 逐一映射 列表项 （...
How can I find out if I have Xcode commandline tools installed?
... of all, be sure that you have downloaded it or not. Open up your terminal application, and enter $ gcc if you have not installed it you will get an alert. You can verify that you have installed it by
$ xcode-select -p
/Library/Developer/CommandLineTools
And to be sure then enter $ gcc --version...
How to change fontFamily of TextView in Android
...set the font programmatically:
TextView tv = (TextView) findViewById(R.id.appname);
Typeface face = Typeface.createFromAsset(getAssets(),
"fonts/epimodem.ttf");
tv.setTypeface(face);
put the font file in your assets folder. In my case I created a subdirectory called fonts.
EDIT: If y...
Qt: How do I handle the event of the user pressing the 'X' (close) button?
I am developing an application using Qt. I don't know which slot corresponds to the event of "the user clicking the 'X'(close) button of the window frame" i.e. this button:
...
What does this Google Play APK publish error message mean?
I'm trying to publish a new version of my Android app to Google Play and get the following error?
17 Answers
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What is the relationship between Looper, Handler and MessageQueue in Android?
...s (post(Runnable), etc.)
The main thread (a.k.a. UI thread) in an Android application is set up as a handler thread before your application instance is created.
Aside from the class docs, there's a nice discussion of all of this here.
P.S. All the classes mentioned above are in the package androi...
Do Google refresh tokens expire?
...(or I should say become unauthorized) when the user revokes access to your application.
Refer this doc it clearly states the function of refresh tokens.
Instead of issuing a long lasting token (typically good for a year or unlimited lifetime),
the server can issues a short-lived acce...
Force Screen On
How do I force the screen to stay active and not shut off while my app is running?
3 Answers
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Sending an Intent to browser to open specific URL [duplicate]
...ACTION_VIEW.
Source: Opening a URL in Android's web browser from within application
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