用户选择头像功能是最常见的调用相机相册场景，调用系统的方法会存在两个问题：1.除了UIImagePickerController的拍照页面，UISearchBar的取消按钮，键盘上的返回、完成等按钮，以及其他系统界面中带有英文的，2.很多时候我们App 的状态栏设计格式和选择照片页面格式不符合的问题。
- 如何变为中文界面？
在info.plist中添加Localized resources can be mixed value值为YES 如下图：
图片
2.改变statusBar的颜色 首先定义
代码语言：javascript复制@interface NewProjectViewController ()<UINavigationControllerDelegate,UIImagePickerControllerDelegate>
@property(strong,nonatomic)UIImagePickerController*pickerViewController;
@end在点击选择头像按钮代码：
代码语言：javascript复制UIAlertController *alertC = [UIAlertController alertControllerWithTitle:@"请选择图片来源" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
//从照相机拍照
UIAlertAction *cameraAction = [UIAlertAction actionWithTitle:@"照相机" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
self.pickerViewController = [[UIImagePickerController alloc] init];
self.pickerViewController.delegate = self;
self.pickerViewController.allowsEditing = YES;
self.pickerViewController.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:self.pickerViewController animated:YES completion:nil];
}else{
NSLog(@"哎呀,没有摄像头");
}
}];
//从手机相册选取
UIAlertAction *photoAction = [UIAlertAction actionWithTitle:@"相册" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeSavedPhotosAlbum]) {
self.pickerViewController = [[UIImagePickerController alloc]init];
self.pickerViewController.delegate = self;
self.pickerViewController.allowsEditing = YES;//是否可以对原图进行编辑
self.pickerViewController.navigationController.navigationBar.translucent = NO;
self.pickerViewController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
self.pickerViewController.navigationBar.barTintColor = [UIColor colorWithRed:20.f/255.0 green:24.0/255.0 blue:38.0/255.0 alpha:1];
self.pickerViewController.navigationBar.tintColor = [UIColor whiteColor];
// 更改titieview的字体颜色
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSForegroundColorAttributeName] = [UIColor whiteColor];
[self.pickerViewController.navigationBar setTitleTextAttributes:attrs];
self.pickerViewController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:self.pickerViewController animated:YES completion:nil];
}
else{
NSLog(@"图片库不可用");
}
}];
//取消
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
[alertC addAction:cameraAction];
[alertC addAction:photoAction];
[alertC addAction:cancelAction];
[self presentViewController:alertC animated:YES completion:nil];其中设置改变导航栏颜色的代码为：
代码语言：javascript复制self.pickerViewController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
self.pickerViewController.navigationBar.barTintColor = [UIColor colorWithRed:20.f/255.0 green:24.0/255.0 blue:38.0/255.0 alpha:1];
self.pickerViewController.navigationBar.tintColor = [UIColor whiteColor];
// 更改titieview的字体颜色
NSMutableDictionary *attrs = [NSMutableDictionary dictionary];
attrs[NSForegroundColorAttributeName] = [UIColor whiteColor];
[self.pickerViewController.navigationBar setTitleTextAttributes:attrs];改变状态栏的颜色方法为：
方法1:
声明一个类继承UIImagePickerController
代码语言：javascript复制#import <UIKit/UIKit.h>
@interface ImagePickerController : UIImagePickerController
@end再其.m文件实现以下方法：
代码语言：javascript复制- (UIStatusBarStyle)preferredStatusBarStyle
{
return UIStatusBarStyleLightContent;
}方法2:
实现UIImagePickerController的延展，并实现preferredStatusBarStyle方法
代码语言：javascript复制#import "UIImagePickerController util.h"
@implementation UIImagePickerController (util)
// 状态栏设置
- (UIStatusBarStyle)preferredStatusBarStyle {
return UIStatusBarStyleLightContent;
}
@end由于很多大神分享UIImagePickerController的具体使用方法，在这里不做多余的阐述了，有问题可以一起讨论。
下次想写些阿里云上传图片的方法。
