我应该把我的图像放在iPhone项目中的哪个位置？

I'm new to iPhone dev.

我是iPhone开发人员的新手。

Now i have a project and its directory structure looks like this :

现在我有一个项目,其目录结构如下所示:

Tutorial
       \__Tutorial\
                 \__1.png
                 \__TutorialViewController.h
                 \__TutorialViewController.m
                 \__TutorialViewController.xib
                 \__Supporting Files\
       \__Frameworks\
       \__Products\

I tried to use [UIImage imageNamed:@"1.png"] to render an image to the view:

我尝试使用[UIImage imageNamed:@“1.png”]将图像渲染到视图中:

 UIImage *image = [UIImage imageNamed:@"1.png"];
 imageView.image = image;
 [image release];

But the image doesn't shows up.

但图像没有显示出来。

So i wonder where should i place the images ?

所以我想知道我应该在哪里放置图像?

And additionally, if i got lots of images (like 1000 number), what should do ?

另外,如果我有很多图像(如1000号),应该怎么办?

Here's my code :

这是我的代码:

#import "TutorialViewController.h"

@implementation TutorialViewController
@synthesize labelText;
@synthesize imageView;

-(void) click:(id)sender {
    NSString *titleOfButton = [sender titleForState:UIControlStateNormal];
    NSString *newText = [[NSString alloc]initWithFormat:@"%@",titleOfButton];
    // Change Image When Clicking Color Button
    if([titleOfButton isEqualToString:@"Blue"]){
        NSLog(@"Blue");
        imageView.image = [UIImage imageNamed:@"a.png"];
    }else{
        imageView.image = [UIImage imageNamed:@"b.png"];;
        NSLog(@"Else");
    }
    labelText.text = newText;
    [newText release];
}

4 个解决方案

#1

You should create a folder named Resources and add images there.

您应该创建一个名为Resources的文件夹并在那里添加图像。

UIImage *image = [UIImage imageNamed:@"IMG_0270.PNG"];
imgView_.image = image;

I had used the above code and it works fine on my system. May be you haven't connected the outlet for imgView in the interface builder.

我使用了上面的代码,它在我的系统上工作正常。可能是您没有在界面构建器中连接imgView的插座。

EDIT:

The problem I found is you are not adding it as a subview. You should change your code like this :

我发现的问题是你没有将它添加为子视图。您应该像这样更改代码:

UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"1.png"]];

NSString *titleOfButton = [sender titleForState:UIControlStateNormal];
NSString *newText = [[NSString alloc] initWithFormat:@"%@", titleOfButton];

// Change Image When Clicking Color Button
if([titleOfButton isEqualToString:@"Blue"]) {
    NSLog(@"Blue");
    imageView.image = [UIImage imageNamed:@"IMG_0270.png"];
} else {
    imageView.image = [UIImage imageNamed:@"b.png"];
    NSLog(@"Else");
}

[imageView setFrame:CGRectMake(10, 10, 230, 123)];
[self.view addSubview:imageView];

// labelText.text = newText;
[newText release];

#2

there is no prbm with ur code. but Some time image become corrupt , due to this reason it not show, try some other images , and if image is not added at bundle path add at

你的代码没有prbm。但有些时候图像变得腐败,由于这个原因它没有显示,尝试一些其他图像,如果图像没有添加在捆绑路径添加在

project target > build phase > copy bundle Resources

项目目标>构建阶段>复制捆绑资源

. might be it will help.

。可能会有所帮助。

#3

You have problem at this statement

你在这个声明中有问题

[image release];

The easiest way to remember when to use release is NARC keyword :)

记住何时使用发布的最简单方法是NARC关键字:)

Always remember to make release call in 4 cases.

永远记得在4种情况下进行释放呼叫。

N New

A Alloc

R Retain

C Copy

#4

Try to remove the first line of your method, if you've connected the UIImageView in the xib you don't need to re-alloc it. Moreover call self.imageView.image instead just imageView.image.

尝试删除方法的第一行,如果已连接xib中的UIImageView,则不需要重新分配它。而且调用self.imageView.image而不仅仅是imageView.image。

#1