//
// ?ViewController.m
//訪問系統(tǒng)相冊
//
// ?Created by lanou on 16/7/12.
// ?Copyright ? 2016年lanou. All rights reserved.
//
#import"ViewController.h"
//遵守協(xié)議
@interfaceViewController()
@property(nonatomic,strong)UIButton*userBtn;
@end
@implementationViewController
- (void)viewDidLoad {
[superviewDidLoad];
//所有的能看到的UI控件創(chuàng)建初始化方式都可以采用alloc initWithFrame
self.userBtn=[[UIButtonalloc]initWithFrame:CGRectMake(30,60,80,80)];
//設置顏色
self.userBtn.backgroundColor=[UIColorredColor];
//設置圓形半徑
self.userBtn.layer.cornerRadius=40;
self.userBtn.layer.masksToBounds=YES;
//添加點擊事件：去訪問系統(tǒng)相冊
[self.userBtnaddTarget:selfaction:@selector(setUserImage)forControlEvents:(UIControlEventTouchUpInside)];
//將按鈕添加到屏幕上來
[self.viewaddSubview:self.userBtn];
}
-(void)setUserImage
{
UIImagePickerController*imagePicker=[[UIImagePickerControlleralloc]init];
//設置代理，到@interface后面遵守協(xié)議
imagePicker.delegate=self;
//彈出系統(tǒng)相冊
[selfpresentViewController:imagePickeranimated:YEScompletion:nil];
}
//這個方法是協(xié)議UIImagePickerControllerDelegate里面的，選擇圖片結(jié)束時候就會自動調(diào)用
- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingImage:(UIImage*)image editingInfo:(nullableNSDictionary *)editingInfo
{
//設置頭像
[self.userBtnsetBackgroundImage:imageforState:(UIControlStateNormal)];
//將相冊消失掉
[pickerdismissViewControllerAnimated:YEScompletion:nil];
}
- (void)didReceiveMemoryWarning {
[superdidReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end
