https://github.com/leancloud/paas.product
Paas product release repo.
https://github.com/leancloud/paas.product
Last synced: about 1 year ago
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Paas product release repo.
- Host: GitHub
- URL: https://github.com/leancloud/paas.product
- Owner: leancloud
- Created: 2013-03-29T09:19:24.000Z (almost 13 years ago)
- Default Branch: master
- Last Pushed: 2013-06-24T12:35:03.000Z (almost 13 years ago)
- Last Synced: 2025-01-09T10:33:03.306Z (about 1 year ago)
- Language: Objective-C
- Size: 41.5 MB
- Stars: 4
- Watchers: 19
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# 欢迎使用AVOS Cloud
本教程将会向您展示如何使用AVOS Cloud SDK开发一个简单的图片应用。 借助AVOS Cloud，您将不需要编写任何服务器端代码、也不需要维护任何服务器。一切将由AVOS Cloud帮您处理。
# 申请AVOS Cloud帐号
如果您还未拥有AVOS Cloud的帐号，请访问cn.avoscloud.com （中国区）或者us.avoscloud.com（美国区）申请开发人员帐号。
请注意，目前中国区和美国区的数据并不能互通。
# 创建基于AVOS Cloud的移动App
# 查看app keys
app keys将会在您的代码中使用到，同时请注意保管好您的app keys，以免给您的应用带来损失。
# 下载SDK
```
git clone git@github.com:avos/paas.product.git
```
# 创建iOS工程
# 将AVOS Cloud SDK加入到工程中
### 使用Finder打开sdk所在的位置，如下图所示
### 将SDK加入到project中，如下图所示
# 初始化AVOS Cloud SDK
## 引用头文件
```
#import "AppDelegate.h"
#import
```
## 初始化Keys
```
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Init AVOS Cloud with app id and app key.
[AVOSCloud setApplicationId:appID
clientKey:appKey];
[AVOSCloud useAVCloudUS];
// Override point for customization after application launch.
return YES;
}
```
# 增加LoginViewController
```
-(IBAction)logInPressed:(id)sender
{
[AVUser logInWithUsernameInBackground:self.userTextField.text password:self.passwordTextField.text block:^(AVUser *user, NSError *error) {
if (user) {
//Open the wall
[self performSegueWithIdentifier:@"LoginSuccesful" sender:self];
} else {
//Something bad has ocurred
NSString *errorString = [[error userInfo] objectForKey:@"error"];
UIAlertView *errorAlertView = [[UIAlertView alloc] initWithTitle:@"Error" message:errorString delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
[errorAlertView show];
}
}];
}
```
# 增加RegisterViewController
```
////Sign Up Button pressed
-(IBAction)signUpUserPressed:(id)sender
{
AVUser *user = [AVUser user];
user.username = self.userRegisterTextField.text;
user.password = self.passwordRegisterTextField.text;
[user signUpInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (!error) {
//The registration was succesful, go to the wall
[self performSegueWithIdentifier:@"SignupSuccesful" sender:self];
} else {
//Something bad has ocurred
NSString *errorString = [[error userInfo] objectForKey:@"error"];
UIAlertView *errorAlertView = [[UIAlertView alloc] initWithTitle:@"Error" message:errorString delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
[errorAlertView show];
}
}];
}
```
# 创建UploadImageViewController
```
-(IBAction)sendPressed:(id)sender
{
[self.commentTextField resignFirstResponder];
//Disable the send button until we are ready
self.navigationItem.rightBarButtonItem.enabled = NO;
//Place the loading spinner
UIActivityIndicatorView *loadingSpinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
[loadingSpinner setCenter:CGPointMake(self.view.frame.size.width/2.0, self.view.frame.size.height/2.0)];
[loadingSpinner startAnimating];
[self.view addSubview:loadingSpinner];
//Upload a new picture
NSData *pictureData = UIImagePNGRepresentation(self.imgToUpload.image);
AVFile *file = [AVFile fileWithName:@"img" data:pictureData];
[file saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (succeeded){
//Add the image to the object, and add the comments, the user, and the geolocation (fake)
AVObject *imageObject = [AVObject objectWithClassName:WALL_OBJECT];
[imageObject setObject:file forKey:KEY_IMAGE];
[imageObject setObject:[PFUser currentUser].username forKey:KEY_USER];
[imageObject setObject:self.commentTextField.text forKey:KEY_COMMENT];
AVGeoPoint *point = [AVGeoPoint geoPointWithLatitude:52 longitude:-4];
[imageObject setObject:point forKey:KEY_GEOLOC];
[imageObject saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
if (succeeded){
//Go back to the wall
[self.navigationController popViewControllerAnimated:YES];
}
else{
NSString *errorString = [[error userInfo] objectForKey:@"error"];
[self showErrorView:errorString];
}
}];
}
else{
NSString *errorString = [[error userInfo] objectForKey:@"error"];
[self showErrorView:errorString];
}
[loadingSpinner stopAnimating];
[loadingSpinner removeFromSuperview];
} progressBlock:^(int percentDone) {
}];
}
```
# 创建ImagesViewController
## 获取所有的图片列表
```
//Get the list of images
-(void)getWallImages
{
//Prepare the query to get all the images in descending order
AVQuery *query = [AVQuery queryWithClassName:WALL_OBJECT];
[query orderByDescending:KEY_CREATION_DATE];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
//Everything was correct, put the new objects and load the wall
self.wallObjectsArray = nil;
self.wallObjectsArray = [[NSArray alloc] initWithArray:objects];
[self loadWallViews];
} else {
//Remove the activity indicator
[self.activityIndicator stopAnimating];
[self.activityIndicator removeFromSuperview];
//Show the error
NSString *errorString = [[error userInfo] objectForKey:@"error"];
[self showErrorView:errorString];
}
}];
}
```
## 加载图片
```
-(void)loadWallViews
{
//Clean the scroll view
for (id viewToRemove in [self.wallScroll subviews]){
if ([viewToRemove isMemberOfClass:[UIView class]])
[viewToRemove removeFromSuperview];
}
//For every wall element, put a view in the scroll
int originY = 10;
for (AVObject *wallObject in self.wallObjectsArray){
//Build the view with the image and the comments
UIView *wallImageView = [[UIView alloc] initWithFrame:CGRectMake(10, originY, self.view.frame.size.width - 20 , 300)];
//Add the image
AVFile *image = (PFFile *)[wallObject objectForKey:KEY_IMAGE];
UIImageView *userImage = [[UIImageView alloc] initWithImage:[UIImage imageWithData:image.getData]];
userImage.frame = CGRectMake(0, 0, wallImageView.frame.size.width, 200);
[wallImageView addSubview:userImage];
//Add the info label (User and creation date)
NSDate *creationDate = wallObject.createdAt;
NSDateFormatter *df = [[NSDateFormatter alloc] init];
[df setDateFormat:@"HH:mm dd/MM yyyy"];
UILabel *infoLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 210, wallImageView.frame.size.width,15)];
infoLabel.text = [NSString stringWithFormat:@"Uploaded by: %@, %@", [wallObject objectForKey:KEY_USER], [df stringFromDate:creationDate]];
infoLabel.font = [UIFont fontWithName:@"Arial-ItalicMT" size:9];
infoLabel.textColor = [UIColor whiteColor];
infoLabel.backgroundColor = [UIColor clearColor];
[wallImageView addSubview:infoLabel];
//Add the comment
UILabel *commentLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 240, wallImageView.frame.size.width, 15)];
commentLabel.text = [wallObject objectForKey:KEY_COMMENT];
commentLabel.font = [UIFont fontWithName:@"ArialMT" size:13];
commentLabel.textColor = [UIColor whiteColor];
commentLabel.backgroundColor = [UIColor clearColor];
[wallImageView addSubview:commentLabel];
[self.wallScroll addSubview:wallImageView];
originY = originY + wallImageView.frame.size.width + 20;
}
//Set the bounds of the scroll
self.wallScroll.contentSize = CGSizeMake(self.wallScroll.frame.size.width, originY);
//Remove the activity indicator
[self.activityIndicator stopAnimating];
[self.activityIndicator removeFromSuperview];
}
```
# 手工添加bundle
为了可以在设备上正常运行app，您需要手工copy bundle
# 下载完整示例
```
git clone git@github.com:avos/paas.product.git
cd paas.product/iOS/samples
```