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你好世界 · App Inventor 2 中文网
... 关键设置
列表选择器
列表选择器_语言
提示：选择语言
标签
标签_问候
初始文本留空
标签
标签_提示
显示当前语言
文本朗读器
文本朗读器...
日期计算器与倒数日：日期选择框取前一天、日期加减、相差天数（附 .aia 源...
...M-dd"), " ", 星期表[计时器1.Weekday(时刻)])
}
when 日期选择框_日期.AfterDateSet() {
var 选中 = 日期选择框_日期.Instant
标签_日期结果.Text = join("选中：", 日期文字(选中), "\n前一天：", 日期文字(计时器1.AddDays(选中, -1)), "\n后一天：", 日...
文本文件读写助手：创建、追加一行、读最后一行、统计行数（附 .aia 源码）...
...——不能在调用 ReadFrom 的下一句就去用内容。
when 按钮_保存.Click() {
文件管理器1.SaveFile(join(文本输入框_内容.Text, "\n"), join("notes/", 文本输入框_文件名.Text))
}
when 按钮_追加.Click() {
文件管理器1.AppendToFile(join(文本输入框_内容...
How to create a custom-shaped bitmap marker with Android map API v2 [duplicate]
...ature in my app which loads marker image from url which is working fine on all os versions but Lolipop. In Lolipop it does not render the downloaded icon. Does anyone has idea?
– Vinay
Apr 3 '15 at 7:22
...
How to detect total available/free disk space on the iPhone/iPad device?
...
Original answer:
I found the following solution working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDic...
Angularjs minify best practice
...since Angular 1.3.1 you can turn off implicit dependency injection, it's really helpful to solve potential problems with renaming at once (before minification).
Turning off implicit DI, using strictDi config property:
angular.bootstrap(document, ['myApp'], {
strictDi: true
});
Turning off im...
How can I detect the touch event of an UIImageView?
...cify images) over the UIImageView. Then attach whatever methods you want called to that.
You can use that technique for many cases where you really want some area of the screen to act as a button instead of messing with the Touch stuff.
...
Why does the order in which libraries are linked sometimes cause errors in GCC?
...asier for the reader to see real command lines).
Common files shared by all below commands
$ cat a.cpp
extern int a;
int main() {
return a;
}
$ cat b.cpp
extern int b;
int a = b;
$ cat d.cpp
int b;
Linking to static libraries
$ g++ -c b.cpp -o b.o
$ ar cr libb.a b.o
$ g++ -c d.cpp -o d.o
...
Flatten an Array of Arrays in Swift
...
Just to state this more generally, flatMap is available as of Swift 1.2.
– Mick MacCallum
Apr 24 '15 at 4:56
3
...
jQuery AJAX file upload PHP
...ript to look like this:
$('#upload').on('click', function() {
var file_data = $('#sortpicture').prop('files')[0];
var form_data = new FormData();
form_data.append('file', file_data);
alert(form_data);
$.ajax({
url: 'uploa...