Question

我用UIImageViews（而不是textlabels等）创建了一个水平的UIPickerView。基本上工作正常，除了图像只显示在iPhone模拟器上，而不是在实际的iPhone上。

我正在为iOS v 4.3构建。

我完全难过，已经挣扎了很长时间了！

谢谢：）

以下是代码摘录：

//
//  PickerPicViewController.m
//  PickerPic
//
//  Created by user on 2012/01/11.
//  Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//

#import "PickerPicViewController.h"

@implementation PickerPicViewController

@synthesize piccie;

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Release any cached data, images, etc that aren't in use.
}

- (NSInteger) numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return 1;
}

- (NSInteger) pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    return 2;
}

- (UIView *) pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
{
    UIImage *one = [UIImage imageNamed:@"rss.png"];

    UIImageView *oneView = [[[UIImageView alloc] initWithImage:one] initWithFrame:CGRectMake(0, 0, 50, 50)]; 

    return oneView;
}


#pragma mark - View lifecycle

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.


     piccie = [[UIPickerView alloc] initWithFrame:CGRectZero];
     piccie.delegate = self;
     piccie.dataSource = self;
     piccie.showsSelectionIndicator = YES;
     piccie.backgroundColor = [UIColor clearColor];


     CGRect pickerFrame = piccie.frame;
     pickerFrame.size.width = 70;
     pickerFrame.size.height = 216;
     pickerFrame.origin.x = 125;
     pickerFrame.origin.y = 20;
     piccie.frame = pickerFrame;

     CGAffineTransform rotate = CGAffineTransformMakeRotation(-M_PI/2);
     rotate = CGAffineTransformScale(rotate, 1, 1.30);
     CGAffineTransform t0 = CGAffineTransformMakeTranslation(1, -40.5);
     piccie.transform = CGAffineTransformConcat(rotate, t0);

    [self.view addSubview:piccie];


}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
}

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
}

- (void)viewDidDisappear:(BOOL)animated
{
    [super viewDidDisappear:animated];
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

@end

Answer 1

为什么在创建时初始化uiimageview两次？我认为这是问题所在。而是尝试

UIImageView *oneView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 50, 50)]; 
[oneView setImage: one];

水平UIPicker组件上的UIImageView显示在iPhone模拟器上，但不显示在实际的iPhone上

1 个答案: