iOS开发项目篇—33发微博
一、简单说明
1.发送按钮
当textView的文字发生改变（有内容）的时候，设置导航栏右侧的按钮为可点击的。
说明：监听内容的改变，既可以使用通知来实现，也可以使用代理来实现（下面使用的是代理的方式）
代码说明：
1 #pragma mark-设置代理方法
2 /**
3 *当textView的内容改变的时候，通知导航栏“发送”按钮为可用
4 */
5 -(void)textViewDidChange:(UITextView *)textView
6 {
7 self.navigationItem.rightBarButtonItem.enabled=textView.text.length!=0;
8 }
2.发送微博的接口
查看新浪提供的发送微博的接口：
其中使用了第二个接口就必须要传递图片。
两个接口的参数说明：
（1）发布一条微博信息
（2）上传图片并发布一条微博
提示：参数说明中binary的数据类型对应的时NSData.
3.合理的选择对应的接口
1 -(void)send
2 {
3 //1.发表微博
4 if (self.photoView.images.count) {
5 [self sendStatusWithImage];
6 }else
7 {
8 [self sendStatusWithoutImage];
9 }
10 //2.退出控制器
11 [self dismissViewControllerAnimated:YES completion:nil];
12 }
二、代码实现
说明：新浪开放的接口，只能上传一张图片
实现代码：
YYComposePhotosView.m文件中添加一个获取图片数组的方法
1 //
2 // YYComposePhotosView.m
3 //
4
5 #import "YYComposePhotosView.h"
6
7 @implementation YYComposePhotosView
8
9 -(void)addImage:(UIImage *)image
10 {
11 UIImageView *imageView=[[UIImageView alloc]init];
12 //设置显示效果
13 imageView.contentMode=UIViewContentModeScaleToFill;
14 //裁剪超出的部分
15 // imageView.clipsToBounds=YES;
16 imageView.image=image;
17 [self addSubview:imageView];
18 }
19
20 -(void)layoutSubviews
21 {
22 [super layoutSubviews];
23 int count = self.subviews.count;
24 // 一行的最大列数
25 int maxColsPerRow = 4;
26
27 // 每个图片之间的间距
28 CGFloat margin = 10;
29
30 // 每个图片的宽高
31 CGFloat imageViewW = (self.width - (maxColsPerRow + 1) * margin) / maxColsPerRow;
32 CGFloat imageViewH = imageViewW;
33
34 for (int i = 0; i<count; i++) {
35 // 行号
36 int row = i / maxColsPerRow;
37 // 列号
38 int col = i % maxColsPerRow;
39
40 UIImageView *imageView = self.subviews[i];
41 imageView.width = imageViewW;
42 imageView.height = imageViewH;
43 imageView.y = row * (imageViewH + margin);
44 imageView.x = col * (imageViewW + margin) + margin;
45 }
46 }
47
48 -(NSArray *)images
49 {
50 NSMutableArray *images=[NSMutableArray array];
51 for (UIImageView *imageView in self.subviews) {
52 [images addObject:imageView.image];
53 }
54 return images;
55 }
56 @end
YYComposeViewController.m文件进行业务处理
1 //
2 // YYComposeViewController.m
3 //
4
5 #import "YYComposeViewController.h"
6 #import "YYTextView.h"
7 #import "YYComposeToolBar.h"
8 #import "YYComposePhotosView.h"
9 #import "YYAccountModel.h"
10 #import "YYAccountTool.h"
11 #import "AFNetworking.h"
12 #import "MBProgressHUD+MJ.h"
13
14 @interface YYComposeViewController ()<YYComposeToolBarDelegate,UITextViewDelegate,UINavigationControllerDelegate, UIImagePickerControllerDelegate>
15 @property(nonatomic,weak)YYTextView *textView;
16 @property(nonatomic,weak)YYComposeToolBar *toolBar;
17 @property(nonatomic,weak)YYComposePhotosView *photoView;
18 @end
19
20 @implementation YYComposeViewController
21
22 #pragma mark-初始化方法
23 - (void)viewDidLoad
24 {
25 [super viewDidLoad];
26
27 //设置导航栏
28 [self setupNavBar];
29
30 //添加子控件
31 [self setupTextView];
32
33 //添加工具条
34 [self setupToolbar];
35
36 //添加photoView
37 [self setupPhotoView];
38
39 //写图片代码,把五张图片写入到相册中保存
40 for (int i=0; i<5; i++) {
41 NSString *name=[NSString stringWithFormat:@"minion_0%d",i+1];
42 UIImage *image=[UIImage imageNamed:name];
43 UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
44 }
45
46 }
47
48 -(void)setupPhotoView
49 {
50 YYComposePhotosView *photoView=[[YYComposePhotosView alloc]init];
51 photoView.width=self.textView.width;
52 photoView.height=self.textView.height;
53 photoView.y=50;
54 // photoView.backgroundColor=[UIColor redColor];
55 [self.textView addSubview:photoView];
56 self.photoView=photoView;
57 }
58 -(void)setupToolbar
59 {
60 //1.创建
61 YYComposeToolBar *toolBar=[[YYComposeToolBar alloc]init];
62 toolBar.width=self.view.width;
63 toolBar.height=44;
64 self.toolBar=toolBar;
65 //设置代理
66 toolBar.delegate=self;
67
68 //2.显示
69 // self.textView.inputAccessoryView=toolBar;
70 toolBar.y=self.view.height-toolBar.height;
71 [self.view addSubview:toolBar];
72 }
73
74
75 /**
76 * view显示完毕的时候再弹出键盘，避免显示控制器view的时候会卡住
77 */
78 - (void)viewDidAppear:(BOOL)animated
79 {
80 [super viewDidAppear:animated];
81
82 // 成为第一响应者（叫出键盘）
83 [self.textView becomeFirstResponder];
84 }
85
86 #pragma mark-UITextViewDelegate
87 /**
88 * 当用户开始拖拽scrollView时调用
89 */
90 -(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
91 {
92 [self.view endEditing:YES];
93 }
94
95 //添加子控件
96 -(void)setupTextView
97 {
98 //1.创建输入控件
99 YYTextView *textView=[[YYTextView alloc]init];
100 //设置垂直方向上拥有弹簧效果
101 textView.alwaysBounceVertical=YES;
102 textView.delegate=self;
103 //设置frame
104 textView.frame=self.view.bounds;
105 [self.view addSubview:textView];
106 self.textView=textView;
107
108 //2.设置占位文字提醒
109 textView.placehoder=@"分享新鲜事···";
110 //3.设置字体(说明：该控件继承自UITextfeild，font是其父类继承下来的属性)
111 textView.font=[UIFont systemFontOfSize:15];
112 //设置占位文字的颜色为棕色
113 textView.placehoderColor=[UIColor lightGrayColor];
114
115 //4.监听键盘
116 //键盘的frame(位置即将改变)，就会发出UIKeyboardWillChangeFrameNotification通知
117 //键盘即将弹出，就会发出UIKeyboardWillShowNotification通知
118 [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(KeyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
119 //键盘即将隐藏，就会发出UIKeyboardWillHideNotification通知
120 [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(KeyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
121 }
122
123 -(void)dealloc
124 {
125 [[NSNotificationCenter defaultCenter]removeObserver:self];
126 }
127
128 #pragma mark-设置代理方法
129 /**
130 *当textView的内容改变的时候，通知导航栏“发送”按钮为可用
131 */
132 -(void)textViewDidChange:(UITextView *)textView
133 {
134 self.navigationItem.rightBarButtonItem.enabled=textView.text.length!=0;
135 }
136 #pragma mark-键盘处理
137 /**
138 *键盘即将弹出
139 */
140 -(void)KeyboardWillShow:(NSNotification *)note
141 {
142 YYLog(@"%@",note.userInfo);
143 //1.键盘弹出需要的时间
144 CGFloat duration=[note.userInfo [UIKeyboardAnimationDurationUserInfoKey] doubleValue];
145
146 //2.动画
147 [UIView animateWithDuration:duration animations:^{
148 //取出键盘的高度
149 CGRect keyboardF=[note.userInfo [UIKeyboardFrameEndUserInfoKey] CGRectValue];
150 CGFloat keyboardH=keyboardF.size.height;
151 self.toolBar.transform=CGAffineTransformMakeTranslation(0, -keyboardH);
152 }];
153 }
154
155 /**
156 *键盘即将隐藏
157 */
158 -(void)KeyboardWillHide:(NSNotification *)note
159 {
160 //1.键盘弹出需要的时间
161 CGFloat duration=[note.userInfo [UIKeyboardAnimationDurationUserInfoKey] doubleValue];
162 //2.动画
163 [UIView animateWithDuration:duration animations:^{
164 self.toolBar.transform=CGAffineTransformIdentity;
165 }];
166 }
167
168 //设置导航栏
169 -(void)setupNavBar
170 {
171 self.title=@"发消息";
172 self.view.backgroundColor=[UIColor whiteColor];
173 self.navigationItem.leftBarButtonItem=[[UIBarButtonItem alloc]initWithTitle:@"取消" style:UIBarButtonItemStyleBordered target:self action:@selector(cancel)];
174 self.navigationItem.rightBarButtonItem=[[UIBarButtonItem alloc]initWithTitle:@"发送" style:UIBarButtonItemStyleBordered target:self action:@selector(send)];
175 self.navigationItem.rightBarButtonItem.enabled=NO;
176 }
177
178 -(void)send
179 {
180 //1.发表微博
181 if (self.photoView.images.count) {
182 [self sendStatusWithImage];
183 }else
184 {
185 [self sendStatusWithoutImage];
186 }
187 //2.退出控制器
188 [self dismissViewControllerAnimated:YES completion:nil];
189 }
190
191 /**
192 * 发送带图片的微博
193 */
194 -(void)sendStatusWithImage
195 {
196 //1.获得请求管理者
197 AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
198
199 //2.封装请求参数
200 NSMutableDictionary *params=[NSMutableDictionary dictionary];
201 params[@"access_token"] =[YYAccountTool accountModel].access_token;
202 params[@"status"]=self.textView.text;
203
204 //3.发送POST请求
205 // [mgr POST:@"https://api.weibo.com/2/statuses/update.json" parameters:params success:^(AFHTTPRequestOperation *operation, NSDictionary*statusDict) {
206 //
207 // } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
208 //
209 // }];
210 [mgr POST:@"https://upload.api.weibo.com/2/statuses/upload.json" parameters:params constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
211 #warning 目前新浪提供的发微博接口只能上传一张图片
212 //取出图片
213 UIImage *image=[self.photoView.images firstObject];
214 //把图片写成NSData
215 NSData *data=UIImageJPEGRepresentation(image, 1.0);
216 //拼接文件参数
217 [formData appendPartWithFileData:data name:@"pic" fileName:@"status.jpg" mimeType:@"image/jpeg"];
218
219 } success:^(AFHTTPRequestOperation *operation, id responseObject) {
220 [MBProgressHUD showSuccess:@"发表成功"];
221 } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
222 [MBProgressHUD showError:@"发表失败"];
223 }];
224 }
225
226 /**
227 * 发送不带图片的微博
228 */
229 -(void)sendStatusWithoutImage
230 {
231
232 //1.获得请求管理者
233 AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];
234
235 //2.封装请求参数
236 NSMutableDictionary *params=[NSMutableDictionary dictionary];
237 params[@"access_token"] =[YYAccountTool accountModel].access_token;
238 params[@"status"]=self.textView.text;
239
240 //3.发送POST请求
241 [mgr POST:@"https://api.weibo.com/2/statuses/update.json" parameters:params success:^(AFHTTPRequestOperation *operation, NSDictionary*statusDict) {
242 [MBProgressHUD showSuccess:@"发表成功"];
243 } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
244 [MBProgressHUD showError:@"发表失败"];
245 }];
246
247 //4.关闭发送微博界面
248 // [self dismissViewControllerAnimated:YES completion:nil];
249 }
250 -(void)cancel
251 {
252 [self dismissViewControllerAnimated:YES completion:nil];
253 // [email protected]"测试";
254 }
255
256
257 #pragma mark-YYComposeToolBarDelegate
258 -(void)composeTool:(YYComposeToolBar *)toolbar didClickedButton:(YYComposeToolbarButtonType)buttonType
259 {
260 switch (buttonType) {
261 case YYComposeToolbarButtonTypeCamera://照相机
262 [self openCamera];
263 break;
264
265 case YYComposeToolbarButtonTypePicture://相册
266 [self openAlbum];
267 break;
268
269 case YYComposeToolbarButtonTypeEmotion://表情
270 [self openEmotion];
271 break;
272
273 case YYComposeToolbarButtonTypeMention://提到
274 YYLog(@"提到");
275 break;
276
277 case YYComposeToolbarButtonTypeTrend://话题
278 YYLog(@"打开话题");
279 break;
280
281 default:
282 break;
283 }
284 }
285
286 /**
287 * 打开照相机
288 */
289 -(void)openCamera
290 {
291 //如果不能用，则直接返回
292 if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) return;
293
294 UIImagePickerController *ipc=[[UIImagePickerController alloc]init];
295 ipc.sourceType=UIImagePickerControllerSourceTypeCamera;
296 ipc.delegate=self;
297 [self presentViewController:ipc animated:YES completion:nil];
298
299 }
300 /**
301 * 打开相册
302 */
303 -(void)openAlbum
304 {
305 //如果不能用，则直接返回
306 if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) return;
307
308 UIImagePickerController *ipc=[[UIImagePickerController alloc]init];
309 ipc.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;
310 ipc.delegate=self;
311 [self presentViewController:ipc animated:YES completion:nil];
312 }
313 /**
314 * 打开表情
315 */
316 -(void)openEmotion
317 {
318
319 }
320
321 #pragma mark-UIImagePickerControllerDelegate
322 -(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
323 {
324 [picker dismissViewControllerAnimated:YES completion:nil];
325 //1.取出选取的图片
326 UIImage *image=info[UIImagePickerControllerOriginalImage];
327
328 //2.添加图片到相册中
329 [self.photoView addImage:image];
330 }
331 @end
效果：
（1）发送纯文字微博
（2）发送带图片的微博信息
（3）使用账号登录到新浪官方查看发送的测试数据
iOS开发项目篇—33发微博
时间： 2024-10-27 19:04:52