Mac OS X開發學習 -開啟檔案選取器並擷取檔案

標籤：

代碼如下：

　　 NSOpenPanel *openPanel = [NSOpenPanel openPanel];    [openPanel setPrompt: @"開啟"];        openPanel.allowedFileTypes = [NSArray arrayWithObjects: @"txt", @"doc", nil];    openPanel.directoryURL = nil;        [openPanel beginSheetModalForWindow:[self gainMainViewController] completionHandler:^(NSModalResponse returnCode) {                if (returnCode == 1) {            NSURL *fileUrl = [[openPanel URLs] objectAtIndex:0];            // 擷取檔案內容            NSFileHandle *fileHandle = [NSFileHandle fileHandleForReadingFromURL:fileUrl error:nil];            NSString *fileContext = [[NSString alloc] initWithData:fileHandle.readDataToEndOfFile encoding:NSUTF8StringEncoding];                        // 將 擷取的資料傳遞給 ViewController 的 TextView            ViewController *mainViewController = (ViewController *)[self gainMainViewController].contentViewController;            mainViewController.showCodeTextView.string = fileContext;        }    }];

 

Mac OS X開發學習 -開啟檔案選取器並擷取檔案