iOS development: Inducing users to comment on your app

"Since my own app has few downloads and comments, I tried every possible way to optimize the app for ASO, and comments are a relatively important part of ASO. The previous versions did not have the function of inducing users to comment, which made it somewhat passive."

Therefore, I simply encapsulated this function. Let's take a look at the effect diagram first:

The pop-up view does not do anything, that is, the UIAlertView used before 8.0 of the system and the UIAlertController used after 8.0

For some specific algorithms, you can see the code. Without further ado, I will just post the code.

Create a new NSObject class named LBToAppStore. The specific code is as follows

.h files

 #import #import @interface LBToAppStore : NSObject{
    #if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_8_0   
   
    UIAlertView *alertViewTest;
   
#else   
   
    UIAlertController *alertController;
   
#endif   
   
 } 
   
 @property (nonatomic,strong) NSString * myAppID; //appID  
   
   
   
 - ( void )showGotoAppStore:(UIViewController *)VC; 
   
 @end

.m file

 #import "LBToAppStore.h"   
   
 @implementation LBToAppStore 
   
   
 - ( void )showGotoAppStore:(UIViewController *)VC{ 
     //Current version number  
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary]; 
     float appVersion = [[infoDictionary objectForKey:@ "CFBundleShortVersionString" ] floatValue]; 
     //Number of days in userDefaults  
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
     int udtheDays = [[userDefaults objectForKey:@ "theDays" ] intValue]; 
     //Version number in userDefaults  
     float udAppVersion = [[userDefaults objectForKey:@ "appVersion" ] intValue]; 
     //The user's last option in userDefaults  
     int udUserChoose = [[userDefaults objectForKey:@ "userOptChoose" ] intValue]; 
     //Timestamp days  
    NSTimeInterval interval = [[NSDate date] timeIntervalSince1970]; 
     int daySeconds = 24 * 60 * 60;
    NSInteger theDays = interval / daySeconds; 
   
     //Processing after version upgrade, clear all rules and start pop-up window  
     if (udAppVersion && appVersion>udAppVersion) {
        [userDefaults removeObjectForKey:@ "theDays" ];
        [userDefaults removeObjectForKey:@ "appVersion" ];
        [userDefaults removeObjectForKey:@ "userOptChoose" ];
        [self alertUserCommentView:VC];
 } 
     //1, never popped up  
     //2, user selects ???? I want to complain, pop up again after 7 days  
     //3. After the user selects ????Cruel Rejection, the pop-up will appear every day for 7 days.  
     //4, the pop-up window will appear 30 days after the user chooses "cruel rejection"  
     else   if (!udUserChoose ||
    (udUserChoose==2 && theDays-udtheDays>7) ||
    (udUserChoose>=3 && theDays-udtheDaysudUserChoose-3) ||
    (udUserChoose>=3 && theDays-udtheDays>30))
 {
        [self alertUserCommentView:VC]; 
   
 } 
   
 } 
   
 -( void )alertUserCommentView:(UIViewController *)VC{ 
   
     if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) { 
   
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
     //The number of days of the current timestamp  
    NSTimeInterval interval = [[NSDate date] timeIntervalSince1970]; 
     int daySeconds = 24 * 60 * 60;
    NSInteger theDays = interval / daySeconds; 
     //Current version number  
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary]; 
     float appVersion = [[infoDictionary objectForKey:@ "CFBundleShortVersionString" ] floatValue]; 
     //Version number in userDefaults  
     float udAppVersion = [[userDefaults objectForKey:@ "appVersion" ] intValue]; 
     //User selection item in userDefaults  
     int udUserChoose = [[userDefaults objectForKey:@ "userOptChoose" ] intValue]; 
     //User days in userDefaults  
     int udtheDays = [[userDefaults objectForKey:@ "theDays" ] intValue]; 
   
     //The current version is higher than the version number in userDefaults  
     if (appVersion>udAppVersion) {
        [userDefaults setObject:[NSString stringWithFormat:@ "%f" ,appVersion] forKey:@ "appVersion" ];
 } 
   
 alertController = [UIAlertController alertControllerWithTitle:@ "A letter to developers" message:@ "With your support, we can better serve you and provide you with better quality apps that are more suitable for you. Of course, you can also directly give us feedback on the problem" preferredStyle:(UIAlertControllerStyleAlert)]; 
   
    UIAlertAction *refuseAction = [UIAlertAction actionWithTitle:@ "????Cruel Refuse" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction *action) { 
   
    [userDefaults setObject:@ "1" forKey:@ "userOptChoose" ];
    [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )theDays] forKey:@ "theDays" ];
 }]; 
   
    UIAlertAction *okAction = [UIAlertAction actionWithTitle:@ "????Good reviews and appreciation" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction *action) { 
   
    [userDefaults setObject:@ "2" forKey:@ "userOptChoose" ];
    [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )theDays] forKey:@ "theDays" ]; 
   
    NSString *str = [NSString stringWithFormat:
    @ "https://itunes.apple.com/cn/app/id%@?mt=8" ,
 self.myAppID ]; 
   
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]]; 
   
 }]; 
   
    UIAlertAction *showAction = [UIAlertAction actionWithTitle:@ "????I want to complain" style:(UIAlertActionStyleDefault) handler:^(UIAlertAction *action) { 
   
     if (udUserChoose30) {
    [userDefaults setObject:@ "3" forKey:@ "userOptChoose" ];
    [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )theDays] forKey:@ "theDays" ];
 } else {
    [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )(theDays-udtheDays+3)] forKey:@ "userOptChoose" ];
 }
    NSString *str = [NSString stringWithFormat:
    @ "https://itunes.apple.com/cn/app/id%@?mt=8" ,
 self.myAppID ]; 
   
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
 }]; 
   
   
    [alertController addAction:refuseAction];
    [alertController addAction:okAction];
    [alertController addAction:showAction]; 
   
     // NSLog(@"%@",[userDefaults objectForKey:@"appVersion"]);  
     // NSLog(@"%@",[userDefaults objectForKey:@"userOptChoose"]);  
     // NSLog(@"%@",[userDefaults objectForKey:@"theDays"]);  
   
    [VC presentViewController:alertController animated:YES completion:nil]; 
   
 } else {
        #if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_8_0  
 alertViewTest = [[UIAlertView alloc] initWithTitle:@ "A letter to developers" message:@ "With your support, we can better serve you and provide you with better quality apps that are more suitable for you. Of course, you can also directly give us feedback on the problem" delegate:self cancelButtonTitle:@ "????Cruel rejection" otherButtonTitles:@ "????Good reviews" ,@ "????I want to complain" , nil];
 [alertViewTest show];
 #endif  
 } 
   
 }
   
#if __IPHONE_OS_VERSION_MAX_ALLOWED < __IPHONE_8_0   
   
 -( void )alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{ 
   
    NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults]; 
     //The number of days of the current timestamp  
    NSTimeInterval interval = [[NSDate date] timeIntervalSince1970]; 
     int daySeconds = 24 * 60 * 60;
    NSInteger theDays = interval / daySeconds; 
     //Current version number  
    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary]; 
     float appVersion = [[infoDictionary objectForKey:@ "CFBundleShortVersionString" ] floatValue]; 
     //Version number in userDefaults  
     float udAppVersion = [[userDefaults objectForKey:@ "appVersion" ] intValue]; 
     //User selection item in userDefaults  
     int udUserChoose = [[userDefaults objectForKey:@ "userOptChoose" ] intValue]; 
     //User days in userDefaults  
     int udtheDays = [[userDefaults objectForKey:@ "theDays" ] intValue]; 
   
     //The current version is higher than the version number in userDefaults  
     if (appVersion>udAppVersion) {
        [userDefaults setObject:[NSString stringWithFormat:@ "%f" ,appVersion] forKey:@ "appVersion" ];
 } 
   
     switch (buttonIndex) { 
         case 0: //Cruel rejection  
         if (udUserChoose30) {
            [userDefaults setObject:@ "3" forKey:@ "userOptChoose" ];
            [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )theDays] forKey:@ "theDays" ];
 } else {
            [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )(theDays-udtheDays+3)] forKey:@ "userOptChoose" ];
 } 
         break ; 
         case 1:{ //Good reviews  
            [userDefaults setObject:@ "1" forKey:@ "userOptChoose" ];
            [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )theDays] forKey:@ "theDays" ];
            NSString *str = [NSString stringWithFormat:
            @ "https://itunes.apple.com/cn/app/id%@?mt=8" ,
 self.myAppID ]; 
   
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
 } 
         break ; 
         case 2:{ //It doesn't work well, I want to make suggestions  
            [userDefaults setObject:@ "2" forKey:@ "userOptChoose" ];
            [userDefaults setObject:[NSString stringWithFormat:@ "%d" ,( int )theDays] forKey:@ "theDays" ];
            NSString *str = [NSString stringWithFormat:
            @ "https://itunes.apple.com/cn/app/id%@?mt=8" ,
 self.myAppID ]; 
   
            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];
 } 
         break ; 
   
         default : 
         break ;
 } 
     // NSLog(@"%@",[userDefaults objectForKey:@"appVersion"]);  
     // NSLog(@"%@",[userDefaults objectForKey:@"userOptChoose"]);  
     // NSLog(@"%@",[userDefaults objectForKey:@"theDays"]);  
   
 }
   
#endif   
   
   
 @end

The specific usage is as follows:

 #import "ViewController.h"
 #import "LBToAppStore.h"  
 @interface ViewController () 
   
 @end 
   
 @implementation ViewController 
   
 - ( void )viewDidLoad {
 [ super viewDidLoad]; 
     // Do any additional setup after loading the view, typically from a nib.  
 } 
   
 -( void )viewDidAppear:(BOOL)animated{ 
   
     //User praise system  
    LBToAppStore *toAppStore = [[LBToAppStore alloc]init];
    toAppStore.myAppID = @ "1067787090" ;
    [toAppStore showGotoAppStore:self]; 
   
 } 
   
   
 @end