2012年1月12日 星期四
如何讓你的app可以分享其他app當中的檔案。 how to share document from other app?
如何在別的app當中利用 Open-in 分享該擋給我的app?
在 app-Info.plist當中加入一個鍵值
如果你的app想接受或是開啓的檔案形態是自己新創建的 例如；我自己弄了一個 副黨名是 .cod 的檔案。
則需要加一個 export type 的描述鍵值是UTExportedTypeDeclarations
2011年12月25日 星期日
Error launching remote program: failed to get the task for process XXX.
原因；使用了distribution provisioning profile 在debug環境上。
解決方式；把 provisioning profile 換成debug用的。
2011年12月14日 星期三
simple file management under bundle document directory 簡單的檔案管理
簡單的檔案管理
To manage the files under application's bundle document directory:
NSString *docRoot ;
// 獲取 app文件夾的位置
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docRoot = [paths objectAtIndex:0];
// 檢查app文件夾下 myfile.png 這個檔案是否存在
// to test existence of a file "myfile.png"
NSString *myFilePath = [[docRoot stringByAppendingPathComponent:@"myfile.png"]];
if ([[NSFileManager defaultManager] fileExistsAtPath: myFilePath]) {
NSLog(@"myfile.png is here!!");
}
else NSLog(@"myfile.png is not in document folder.");
// 刪除app文件夾下 myfile.png 這個檔案
// to delete the file "myfile.png"
if ([[NSFileManager defaultManager] removeItemAtPath:myFilePath error:&error]) {
NSLog(@"file deleted");
}
else NSLog(@"Delete file error: %@", error);
// 建立子資料夾
// to create sub-directory
NSString * subDirectory = [[docRoot stringByAppendingPathComponent:@"mySubDir"]];
if (![[NSFileManager defaultManager] fileExistsAtPath: subDirectory]) {
/* directory doesn't exist, create it. */
if ([[NSFileManager defaultManager] createDirectoryAtPath:subDirectory
withIntermediateDirectories:NO
attributes:nil
error:&error]) {
NSLog(@"directory %@ created.", subDirectory);
}
else {
NSLog(@"Create directory error: %@", error);
}
}
// 刪除子資料夾
// to delete sub-directory
if ([[NSFileManager defaultManager] fileExistsAtPath:subDirectory]) {
// subDirectory exist, delete it.
if ([[NSFileManager defaultManager] removeItemAtPath:subDirectory error:&error]) {
NSLog(@"subDirectory %@ deleted.",subDirectory) ;
}
else {
NSLog(@"Delete directory error: %@", error);
}
}
// 列出app文件夾下的檔案
// list out all files under apple document directory
NSArray *directoryContent = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:subDirectory error:NULL];
for (int count = 0; count < (int)[directoryContent count]; count++) {
NSLog(@"#%d: %@", (count + 1), [directoryContent objectAtIndex:Count]);
}
2011年12月13日 星期二
How to get phone number from iPhone?
///to get know the device is iPhone or iPod touch ...
NSString deviceType = [[UIDevice currentDevice] model] ;/// if the device is iPhone, pick up the phone number
if ( [deviceType isEqualToString:@"iPhone"] ) {
NSString *num = [[NSUserDefaults standardUserDefaults] stringForKey:@"SBFormattedPhoneNumber"];
NSLog(@"phone number:%@",num) ;
}
2011年12月8日 星期四
捲軸畫面不捲了？scroll view Can't scroll
remember to set content size:
[myScrollView setContentSize:CGSizeMake(imageView.frame.size.width, imageView.frame.size.height)];
2011年12月4日 星期日
開發一個iOS App 需要用到哪些圖片
紅字部分比常用到可先準備
file name | Size (pixels) | description |
Icon.png | 57 x 57 | Universial application icon |
Icon-settings.png | 29 x 29 | Universial application icon for settings. |
Icon~ipad.png | 72 x 72 | iPad application icon. |
Icon-spot~ipad.png | 50 x 50 | iPad icon for spotlight search. |
iTunesArtwork.png | 512 x 512 | Universial application icon for iTunes App Store.Uploaded separately to iTunes. It’s included in the app bundle too, file name: iTunesArtwork. In an iPad application iPhone OS uses this image to generate the large (320×320) document icon if it is not supplied otherwise. |
Default.png | 320 (w) x 480 (h) | iPhone/iPod 2, 3 portrait launch image |
Default@2x.png | 640 (w) x 960 (h) | iPhone 4 hi-res portrait launch image |
Default~ipad.png | 768 (w) x 1004 (h) | iPad. Specifies the default portrait launch image.This image is used if a more specific image is not available. Use full size template (768×1024) to design this launch image. The 20 pixels height statusbar is on by default and occupies the top of the screen, aka the 1004 rows vs. 1024. |
Optional icons and images: | ||
Icon@2x.png | 114 x 114 | iPhone 4 retina application icon |
Icon-settings@2x.png | 58 x 58 | iPhone 4 retina application icon for settings/search area |
Icon-doc.png | 22 (w) x 29 (h) | Universial document icon |
Icon-doc@2x.png | 44 (w) x 58 (h) | iPhone 4 retina document icon |
Icon-doc~ipad.png | 64 x 64 | iPad document icon (small size) |
Icon-doc320~ipad.png | 320 x 320 | iPad document icon (large size) |
Background-xxx.png | 320 (w) x 480 (h) 640 (w) x 960 (h) 768 (w) x 1024 (h) | background image for iPhone 2,3 G background image for iPhone 4 G background image for iPad |
Default-PortraitUpsideDown~ipad.png | 768 (w) x 1004 (h) | iPad. Specifies an upside-down portrait version of the launch image. |
Default-LandscapeLeft~ipad.png | 1024 (w) x 748 (h) | iPad. Specifies a left-oriented landscape version of the launch image. |
Default-LandscapeRight~ipad.png | 1024 (w) x 748 (h) | iPad. Specifies a right-oriented landscape version of the launch image. |
Default-Portrait~ipad.png | 768 (w) x 1004 (h) | iPad. Specifies the generic portrait version of the launch image. |
Default-Landscape~ipad.png | 1024 (w) x 748 (h) | iPad. Specifies the generic landscape version of the launch image. |
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