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How to prevent multiple instances of an Activity when it is launched with different Intents
... Market). It seems that launching it from the Play Store uses a different Intent than launching it from the phone's application menu of icons. This is leading to multiple copies of the same Activity being launched, which are conflicting with each other.
...
Arduino101（Genuino 101）&App Inventor – RGB LED控制 - 创客硬件开...
...1秒鐘觸發一次 Clock.Timer事件，其中會使用 BluetoothLE.WriteIntValue 將 r g b 值的組合結果發送出去，例如 (128, 34, 255) 的組合結果就是 128034255，Arduino 收到之後再拆解即可。
Clock.Timer 事件的1秒鐘您可以自行修改為較小的數字，看看是...
Is it unnecessary to put super() in constructor?
...
public class Base { }
public class Derived extends Base { public Derived(int i) { } }
Also fine.
public class Base { public Base(String s) { } }
public class Derived extends Base { }
The above is a compilation error as Base has no default constructor.
public class Base { private Base() { } }...
Reducing the space between sections of the UITableView
...)tableView:(UITableView*)tableView
heightForHeaderInSection:(NSInteger)section {
if (section == 0) {
return 6.0;
}
return 1.0;
}
- (CGFloat)tableView:(UITableView*)tableView
heightForFooterInSection:(NSInteger)section {
return 5.0;
}
- (UIView*)tabl...
How to hide status bar in Android
...
if (Build.VERSION.SDK_INT < 16) {
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
} else {
View decorView = getWindow().getDecorView();
int uiOptions = View.SYSTEM_UI_...
How can I add an animation to the activity finish()
... fixed this issue using this kind of approach:
to open with animation:
Intent newUser = new Intent(getBaseContext(), NewUserActivity.class);
startActivity(newUser);
overridePendingTransition(R.anim.slide_in_right,R.anim.slide_out_left);
To close with animation:
@Override
public boolea...
How to reuse an ostringstream?
... The size is messing it up (i can see the first character is null but it prints much more). Is there a good way to fix the str length? i am using s.str().c_str(); ATM and it works nicely
– user34537
Jun 6 '11 at 16:09
...
Can I use a function for a default value in MySql?
... binary. This article explains how to create a generated column that will convert the UUID to text as needed without taking up any space or worrying about keeping separate binary and text versions in sync: https://mysqlserverteam.com/storing-uuid-values-in-mysql-tables/
...
How to update a single library with Composer?
...ripts which don't handle backspace characters.
--optimize-autoloader (-o): Convert PSR-0/4 autoloading to classmap to get a faster autoloader. This is recommended especially for production, but can take a bit of time to run so it is currently not done by default.
--lock: Only updates the lock file h...
Send JSON data via POST (ajax) and receive json response from Controller (MVC)
...
@Dave no, an endpoint (in this case an mvc controller function) should NEVER trust a client, therefore the XSS check should be done at the server. The controller is responsible for parsing the data in the correct way and send the data back to ...