QQ登录界面头像选择代码

// ViewController.m

// fangwenxitongxiangce

// Created by lanou on 16/7/12.

#import"ViewController.h"

@interfaceViewController()

@property(nonatomic,strong)UIButton*userBtn;

@end

@implementationViewController

- (void)viewDidLoad {

[superviewDidLoad];

//所有的能看到的ui控件创建初始化方式都可以采用alloc initWithFrame

self.userBtn= [[UIButtonalloc]initWithFrame:CGRectMake(150,80,100,100)];

//设置颜色

self.userBtn.backgroundColor= [UIColorredColor];

//设置圆弧半径

self.userBtn.layer.cornerRadius=50;

self.userBtn.layer.masksToBounds=YES;

//添加点击事件：去访问系统相册

[self.userBtnaddTarget:selfaction:@selector(setUserImage)forControlEvents:(UIControlEventTouchUpInside)];

//将按钮添加到屏幕上面来

[self.viewaddSubview:self.userBtn];

}

-(void)setUserImage

{

//创建系统相册

UIImagePickerController*imagePicker = [[UIImagePickerControlleralloc]init];

//设置代理

imagePicker.delegate=self;

//弹出系统相册

[selfpresentViewController:imagePickeranimated:YEScompletion:nil];

}

- (void)didReceiveMemoryWarning {

[superdidReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

//这个方法是协议UIImage里面的，选择图片结束的时候就会自动调用

- (void)imagePickerController:(UIImagePickerController*)picker didFinishPickingImage:(UIImage*)image editingInfo:(nullableNSDictionary *)editingInfo

{

//设置头像

[self.userBtnsetBackgroundImage:imageforState:(UIControlStateNormal)];

//将系统相册消失掉

[pickerdismissViewControllerAnimated:YEScompletion:nil];

}

@end