我正在制作一个诗歌应用程序,用户可以在其中编写您的诗歌并将其保存到文件中。当我单击UITextView来添加和编辑文本时,它立即导致EXC_BAD_ACCESS。有人可以帮我一下为什么会发生这种情况。
这是我在.h文件中的内容
#import <UIKit/UIKit.h>
@interface SecondViewController : UIViewController {
UITextView *newPoemTextView;
UIImageView *newPoemTextViewBackground;
}
@property (nonatomic, retain) IBOutlet UITextView *newPoemTextView;
@property (nonatomic, retain) IBOutlet UIImageView *newPoemTextViewBackground;
-(IBAction)closeKeyboard;
@end
这就是我在.m文件中的内容
@implementation SecondViewController
@synthesize newPoemTextView;
@synthesize newPoemTextViewBackground;
-(IBAction)closeKeyboard {
// This part will write the information to the file
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [documentPaths objectAtIndex:0];
NSString *documentTXTPath = [documentsDirectory stringByAppendingPathComponent:@"savedText.txt"];
NSString *savedString = newPoemTextView.text;
[savedString writeToFile:documentTXTPath atomically:YES];
//This part hopefully closes the keyboard correctly, cross fingers
[newPoemTextView resignFirstResponder];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
UIImage *image = [UIImage imageNamed: @"newPoemBackground.png"];
[newPoemTextViewBackground setImage:image];
UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage
imageNamed:@"background.png"]];
self.view.backgroundColor = background;
[background release];
[super viewDidLoad];
}
您应该在SecondViewController.m文件中同时合成这两个属性。
@synthesize newPoemTextView;
@synthesize newPoemTextViewBackground;
您还应该实现Keyboard的all方法,这将对您有很大帮助。