如何将 jpg 或 png 图像添加到 UIImage 中，然后显示在 UIImageView 中？

发布于 2024-11-19 15:29:04 字数 260 浏览 2 评论 0原文

UIImage *img = [[UIImage alloc] initWithContentsOfFile:@"contactHeader.png"];
_headersView = [[UIImageView alloc] initWithImage:img];

我已经在 IB 中连接了 UIImageView (_headersView) 的连接。我想要加载的图像也在我的项目树结构中。

我是否以正确的方式创建 UIImage ？

原文

UIImage *img = [[UIImage alloc] initWithContentsOfFile:@"contactHeader.png"];
_headersView = [[UIImageView alloc] initWithImage:img];

I have already hooked up the connections for the UIImageView (_headersView) in IB. The image I want to load is in my project tree structure as well.

Am I creating the UIImage the right way?

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云胡 2024-11-26 15:29:04

如果该文件位于您的捆绑包中，您可以使用

UIImage *img = [UIImage imageNamed:@"contactHeader"];
_headersView = [[UIImageView alloc] initWithImage:img];

如果该图像位于您的文档目录中，您可以使用

// Get the path to your documents directory
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

// Add the file to the end of the documents path
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"contactHeader.png"];

UIImage *img = [[UIImage alloc] imageWithContentsOfFile:filePath];
_headersView = [[UIImageView alloc] initWithImage:img];
[img release]; img = nil;

If the file is in your bundle you can just use

UIImage *img = [UIImage imageNamed:@"contactHeader"];
_headersView = [[UIImageView alloc] initWithImage:img];

If the image is in your documents directory you can use

// Get the path to your documents directory
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

// Add the file to the end of the documents path
NSString *filePath = [documentsDirectory stringByAppendingPathComponent:@"contactHeader.png"];

UIImage *img = [[UIImage alloc] imageWithContentsOfFile:filePath];
_headersView = [[UIImageView alloc] initWithImage:img];
[img release]; img = nil;

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哽咽笑 2024-11-26 15:29:04

试试这个

-(NSString *)getPath:(NSString *)filename
{
self.path = [[NSBundle mainBundle]pathForResource:filename ofType:@"png"];
return path;
path = nil;
}

self.youImageView.image = [UIImage imageWithContentsOfFile:[self getPath:@"123"]];

try this

-(NSString *)getPath:(NSString *)filename
{
self.path = [[NSBundle mainBundle]pathForResource:filename ofType:@"png"];
return path;
path = nil;
}

self.youImageView.image = [UIImage imageWithContentsOfFile:[self getPath:@"123"]];

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