在我的 ios 应用程序中，我使用大量图像（大约一千张）来显示有关产品的信息。然后我在运行时遇到这样的错误；
ImageIO：CGImageRead_mapData 'open' failed error = 24（打开的文件太多）
如何关闭打开的文件？我正在使用 NSFileManager。
谢谢您的回答。
更新：
我的viewdidload中的一些代码，
while(sqlite3_step(compiledStatement) == SQLITE_ROW) {
NSString *imageName= [NSString stringWithUTF8String:(char*)sqlite3_column_text(compiledStatement, 2)];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0]; //Get the docs directory
NSString *filePath = [documentsPath stringByAppendingPathComponent:imageName];
NSData *pngData = [NSData dataWithContentsOfFile:filePath];
if (pngData == nil) {
image2 = [UIImage imageNamed:@"resimYok.jpeg"];//horoda
}else{
image2 = [UIImage imageWithData:pngData];
}
image2=[image2 imageByScalingAndCroppingForSize:CGSizeMake(175, 210)];
UIButton * urunDetayButton = [UIButton buttonWithType:UIButtonTypeCustom];
[urunDetayButton setFrame:CGRectMake(column*197+38 , row*350+58, 159, 170)];
[urunDetayButton setImage:image2 forState:UIControlStateNormal];
[urunDetayButton addTarget:self
action:@selector(buttonClicked:)
forControlEvents:UIControlEventTouchUpInside];
urunDetayButton.tag = UrunId;
[scrollView addSubview:urunDetayButton];
UIImageView *background = [[UIImageView alloc]initWithFrame:CGRectMake(column*197+30, row*350, 175, 280)];
UIImage *blackBackGround = [UIImage imageNamed:@"BackImage.png"];
[background setImage:blackBackGround];
[scrollView addSubview:background];
[background release];
[blackBackGround release];
UIImage *sepeteEkleButtonImage = [UIImage imageNamed:@"sepeteEkleButtonImage.png"];
UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setFrame:CGRectMake(column*197+38 , row*350+8, 159, 45)];
[button setImage:sepeteEkleButtonImage forState:UIControlStateNormal];
[button addTarget:self
action:@selector(addToChart:)
forControlEvents:UIControlEventTouchUpInside];
button.tag = UrunId;
[sepeteEkleButtonImage release];
}
在这个循环中，我创建了数千个按钮。但我看不到一些按钮和一些 imageview 的图像。例如，“背景”和“按钮”图像视图和按钮。有两个截图，那是必须和必须。
