iOS - 开发
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2022-03-23 20:34:32
1. Xcode在真机调试的时候出现”The identity used to sign the executable is no longer valid&rdquo...
1. Xcode在真机调试的时候出现”The identity used to sign the executable is no longer valid”
解决方案：
(1)provisioning Profile文件选择错误
(2)provisioning Profile已失效
(3)开发者证书过期或者被删除了
2. 将storyBoard里的控制器进行实例化
注：需要在Storyboard里面设置控制器的Storyboard ID
//Identifier:@“Storyboard ID”
//将storyBoard实例化 （1）(可以在AppDelegate里面使用)
UIStoryboard *mainSB = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
//将要跳转控制器通过storyBoard实例化
ViewController *VC = [mainSB instantiateViewControllerWithIdentifier:@"ViewController"];
VC.isModifyPassword = NO;
[self.navigationController pushViewController:VC animated:YES];
//将storyBoard实例化 （2）
//将要跳转控制器通过storyBoard实例化
ViewController *VC = [self.storyboard instantiateViewControllerWithIdentifier:@"ViewController"];
VC.isModifyPassword = NO;
[self.navigationController pushViewController:VC animated:YES];
3. 仿安卓Toast
#import
#import
//声明定义一个ToastLabel对象
@interface ToastLabel : UILabel
- (void)setMessageText:(NSString *)text;
@end
@interface Toast : NSObject
{
ToastLabel *toastLabel;
NSTimer *countTimer;
NSInteger changeCount;
}
//创建声明单例的方法
+ (instancetype)shareInstance;
- (void)makeToast:(NSString *)message duration:(CGFloat )duation;
@end
#import "Toast.h"
@implementation ToastLabel
/**
* ToastLabel初始化,位label设置各种属性
*
* @return ToastLabel
*/
- (instancetype)init{
self = [super init];
if (self) {
self.layer.cornerRadius = 10;
self.layer.masksToBounds = YES;
self.backgroundColor = [UIColor blackColor];
self.numberOfLines = 0;
self.textAlignment = NSTextAlignmentCenter;
self.textColor = [UIColor whiteColor];
self.font = [UIFont systemFontOfSize:15];
}
return self;
}
/**
* 设置显示的文字
*
* @aram text 文字文本
*/
- (void)setMessageText:(NSString *)text{
[self setText:text];
CGRect rect = [self.text boundingRectWithSize:CGSizeMake(DeviceWidth - 20, MAXFLOAT) options:NSStringDrawingUsesLineFragmentOrigin | NSStringDrawingUsesFontLeading attributes:@{NSFontAttributeName:self.font} context:nil];
CGFloat width = rect.size.width + 20;
CGFloat height = rect.size.height + 20;
CGFloat x = (DeviceWidth - width) / 2;
CGFloat y = DeviceHight - height - 80;
self.frame = CGRectMake(x, y, width, height);
}
@end
@implementation Toast
/**
* 实现声明单例的方法 GCD
*
* @return 单例
*/
+ (instancetype)shareInstance{
static Toast *singleton = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
singleton = [[Toast alloc] init];
});
return singleton;
}
/**
* 初始化方法
*
* @return 自身
*
*/
- (instancetype)init{
self = [super init];
if (self) {
toastLabel = [[ToastLabel alloc] init];
countTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(changeTime) userInfo:nil repeats:YES];
countTimer.fireDate = [NSDate distantFuture];//关闭定时器
}
return self;
}
/**
* 弹出并显示Tosat
*
* @param message 显示的文本内容
* @param duration 显示时间
*/
- (void)makeToast:(NSString *)message duration:(CGFloat)duation{
if ([message length] == 0) {
return;
}
[toastLabel setMessageText:message];
[[[UIApplication sharedApplication]keyWindow ] addSubview:toastLabel];
toastLabel.alpha = 0.8;
countTimer.fireDate = [NSDate distantPast];//开启定时器
changeCount = duation;
}
/**
* 定时器回调方法
*/
- (void)changeTime{
//NSLog(@"时间:%ld",changeCount);
if (changeCount-- <= 0) {
countTimer.fireDate = [NSDate distantFuture];//关闭定时器
[UIView animateWithDuration:0.2f animations:^{
toastLabel.alpha = 0;
} completion:^(BOOL finished) {
[toastLabel removeFromSuperview];
}];
}
}
@end
//duration:显示的时长
[[Toast shareInstance] makeToast:@"你提示的内容" duration:1.0];
4. UITextField的左视图设置
//1.创建UITextField类别
#import
@interface loginUITextField : UITextField
@end
//2.重写UITextField的左视图的Bounds
#import "loginUITextField.h"
@implementation loginUITextField
- (CGRect)leftViewRectForBounds:(CGRect)bounds
{
CGRect rect = [super leftViewRectForBounds:bounds];
if (self.window.frame.size.width == 320) {
rect = CGRectMake(rect.origin.x + 3, rect.origin.y , 28, 28);
} else if (self.window.frame.size.width == 375){
rect = CGRectMake(rect.origin.x + 4, rect.origin.y , 32, 32);
} else {
rect = CGRectMake(rect.origin.x + 5, rect.origin.y , 35, 35);
}
return rect;
}
@end
//以下是例子 并不能直接使用
//_userTextField的左视图
UIImageView *useImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"user"]];
_userImageView.contentMode = UIViewContentModeScaleAspectFit;
_userTextField.leftView = useImageView;
_userTextField.leftViewMode = UITextFieldViewModeAlways;
_userTextField.borderStyle = UITextBorderStyleRoundedRect;
//修改水印字体颜色和字体大小
[_userTextField setValue:[UIColor lightGrayColor] forKeyPath:@"_placeholderLabel.textColor"];
[_userTextField setValue:[UIFont boldSystemFontOfSize:15] forKeyPath:@"_placeholderLabel.font"];
//_passwordTxetField的左视图
UIImageView *passwdImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"locked"]];
//passwdImageView.frame = CGRectMake(0, 0, 37, 37);
_passwordTxetField.contentMode = UIViewContentModeScaleAspectFit;
_passwordTxetField.leftView = passwdImageView;
_passwordTxetField.leftViewMode = UITextFieldViewModeAlways;
_passwordTxetField.borderStyle = UITextBorderStyleRoundedRect;
//修改水印字体颜色和字体大小
[_passwordTxetField setValue:[UIColor lightGrayColor] forKeyPath:@"_placeholderLabel.textColor"];
[_passwordTxetField setValue:[UIFont boldSystemFontOfSize:15] forKeyPath:@"_placeholderLabel.font"];
5. 自定义NavgationBar的标题和返回按钮无文字的样式和设置NavgationBar的背景图
//自定义NavgationBar的标题
- (void)creatdTitle{
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 45)];
label.text = @"标题";
label.font = [UIFont boldSystemFontOfSize:20];
label.textAlignment = NSTextAlignmentCenter;
label.textColor = [UIColor whiteColor];
self.navigationItem.titleView = label;
}
//返回按钮无文字的样式
- (void)createdbackBarButtonItem{
UIBarButtonItem *newBarButtonItem = [[UIBarButtonItem alloc] init];
newBarButtonItem.title = @"";
self.navigationItem.backBarButtonItem = newBarButtonItem;
[self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];
}
//设置NavgationBar的背景图 (jpg记得加后缀)
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"1"] forBarMetrics:UIBarMetricsDefault];
6. 自定义UIAlertController的标题、内容、和按钮的字体样式
- （void)created{
NSString *str = @"注 销";
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:nil message:str preferredStyle:UIAlertControllerStyleAlert];
NSMutableAttributedString *alertControllerStr = [[NSMutableAttributedString alloc] initWithString:str];
[alertControllerStr addAttribute:NSForegroundColorAttributeName value:[UIColor redColor] range:NSMakeRange(0, str.length)];
[alertControllerStr addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:25] range:NSMakeRange(0, str.length)];
[alertController setValue:alertControllerStr forKey:@"attributedMessage"];
UIAlertAction *confirmAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
}];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}];
[cancelAction setValue:[UIColor grayColor] forKey:@"titleTextColor"];
[alertController addAction:confirmAction];
[alertController addAction:cancelAction];
[self presentViewController:alertController animated:YES completion:nil];
}
系统的会闪">7. 验证码倒计时60S(注意UIButton样式不能用系统的会闪)
//self.verificationBtn:改成你自己的命名的button
- (void)startTime{
__block int timeout = 59; //倒计时时间
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);
dispatch_source_set_timer(_timer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0); //每秒执行
dispatch_source_set_event_handler(_timer, ^{
if(timeout<=0){ //倒计时结束，关闭
dispatch_source_cancel(_timer);
dispatch_async(dispatch_get_main_queue(), ^{
//设置界面的按钮显示 根据自己需求设置（倒计时结束后调用）
[self.verificationBtn setTitle:@"获取验证码" forState:UIControlStateNormal];
[self.verificationBtn setBackgroundColor:[UIColor colorWithRed: 0/256.0 green: 111/256.0 blue: 255/256.0 alpha:1]];
//设置可点击
self.verificationBtn.userInteractionEnabled = YES;
});
}else{
// int minutes = timeout / 60; //这里注释掉了，这个是用来测试多于60秒时计算分钟的。
int seconds = timeout % 60;
NSString *strTime = [NSString stringWithFormat:@"%.2d", seconds];
dispatch_async(dispatch_get_main_queue(), ^{
//设置界面的按钮显示 根据自己需求设置
//NSLog(@"____%@",strTime);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1];
[self.verificationBtn setTitle:[NSString stringWithFormat:@"%@秒重新发送",strTime] forState:UIControlStateNormal];
[UIView commitAnimations];
self.verificationBtn.backgroundColor = [UIColor lightGrayColor];
//设置不可点击
self.verificationBtn.userInteractionEnabled = NO;
});
timeout--;
}
});
dispatch_resume(_timer);
}
8. 各种切圆角(基本上能切得都这样切)
//头像图片切圆
_userImageView.layer.cornerRadius = _userImageView.frame.size.width / 2;
_userImageView.layer.masksToBounds = YES;
//
_textFiled.layer.cornerRadius = 10;
_textFiled.layer.masksToBounds = YES;
//
view.layer.cornerRadius = 20;
view.layer.masksToBounds = YES;
9.避免程序因为NSNull而导致奔溃
//创建个类别
#import
@interface NSNull (IsNull)
@end
#import "NSNull+IsNull.h"
@implementation NSNull (IsNull)
- (void)forwardInvocation:(NSInvocation *)invocation
{
if ([self respondsToSelector:[invocation selector]]) {
[invocation invokeWithTarget:self];
}
}
- (NSMethodSignature *)methodSignatureForSelector:(SEL)selector
{
NSMethodSignature *sig = [[NSNull class] instanceMethodSignatureForSelector:selector];
if(sig == nil) {
sig = [NSMethodSignature signatureWithObjCTypes:"@^v^c"];
}
return sig;
}
@end
10.AFNetworking的一个小问题(获取数据的类型不对时，进行更改)
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"application/json", @"text/json", @"text/javascript",@"text/plain",@"text/html",@"image/jpg",nil];
11.极光推送程序内的代码
//1.创建一个类
#import
#import
@interface CFPushHelper : NSObject
///----------------------------------------------------
/// @name Setup 启动相关
///----------------------------------------------------
+ (NSString *)registrationID;
/*!
* @abstract 启动SDK
*
* @param launchingOption 启动参数.
* @param appKey 一个JPush 应用必须的,唯一的标识. 请参考 JPush 相关说明文档来获取这个标识.
* @param channel 发布渠道. 可选.
* @param isProduction 是否生产环境. 如果为开发状态,设置为 NO; 如果为生产状态,应改为 YES.
* @param advertisingIdentifier 广告标识符（IDFA） 如果不需要使用IDFA，传nil.
*
* @discussion 提供SDK启动必须的参数, 来启动 SDK.
* 此接口必须在 App 启动时调用, 否则 JPush SDK 将无法正常工作.
*/
+ (void)setupWithOption:(NSDictionary *)launchingOption
appKey:(NSString *)appKey
channel:(NSString *)channel
apsForProduction:(BOOL)isProduction
advertisingIdentifier:(NSString *)advertisingId;
///----------------------------------------------------
/// @name APNs about 通知相关
///----------------------------------------------------
/*!
* @abstract 注册要处理的远程通知类型
*
* @param types 通知类型
* @param categories
*
* @discussion
*/
//+ (void)registerForRemoteNotificationTypes:(NSUInteger)types
// categories:(NSSet *)categories;
//上传deviceToken
+ (void)registerDeviceToken:(NSData *)deviceToken;
/*!
* @abstract 处理收到的 APNs 消息
*/
//+ (void)handleRemoteNotification:(NSDictionary *)userInfo;
// ios7以后，才有completion，否则传nil
+ (void)handleRemoteNotification:(NSDictionary *)userInfo completion:(void (^)(UIBackgroundFetchResult))completion;
/*!
* @abstract 前台展示本地推送
*
* @param notification 本地推送对象
* @param notificationKey 需要前台显示的本地推送通知的标示符
*
* @discussion 默认App在前台运行时不会进行弹窗，在程序接收通知调用此接口可实现指定的推送弹窗。
*/
+ (void)showLocalNotificationAtFront:(UILocalNotification *)notification identifierKey:(NSString *)notificationKey;
@end
//导入极光推送头文件@"JPUSHService.h"
#import "CFPushHelper.h"
#import "JPUSHService.h"
@implementation CFPushHelper
+ (NSString *)registrationID{
return [JPUSHService registrationID];
}
+ (void)setupWithOption:(NSDictionary *)launchingOption appKey:(NSString *)appKey channel:(NSString *)channel apsForProduction:(BOOL)isProduction advertisingIdentifier:(NSString *)advertisingId{
//Required
if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {
//可以添加自定义categories
[JPUSHService registerForRemoteNotificationTypes:(UIUserNotificationTypeBadge |
UIUserNotificationTypeSound |
UIUserNotificationTypeAlert)
categories:nil];
} else {
//categories 必须为nil
[JPUSHService registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge |
UIRemoteNotificationTypeSound |
UIRemoteNotificationTypeAlert)
categories:nil];
}
//Required
// 如需继续使用pushConfig.plist文件声明appKey等配置内容，请依旧使用[JPUSHService setupWithOption:launchOptions]方式初始化。
[JPUSHService setupWithOption:launchingOption appKey:appKey
channel:channel
apsForProduction:isProduction
advertisingIdentifier:advertisingId];
return;
}
+ (void)registerDeviceToken:(NSData *)deviceToken{
[JPUSHService registerDeviceToken:deviceToken];
return;
}
//+ (void)handleRemoteNotification:(NSDictionary *)userInfo{
//
// [CFPushHelper handleRemoteNotification:userInfo];
//
//}
+ (void)handleRemoteNotification:(NSDictionary *)userInfo completion:(void (^)(UIBackgroundFetchResult))completion{
[JPUSHService handleRemoteNotification:userInfo];
if (completion) {
completion(UIBackgroundFetchResultNewData);
}
return;
}
+ (void)showLocalNotificationAtFront:(UILocalNotification *)notification
identifierKey:(NSString *)notificationKey{
[CFPushHelper showLocalNotificationAtFront:notification identifierKey:nil];
return;
}
@end
//我这里创建的AppDelegate的类别
#import "AppDelegate.h"
@interface AppDelegate (CFPushSDK)
- (void)JPushapplication:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions;
@end
#import "AppDelegate+CFPushSDK.h"
#import "JPUSHService.h"
#import "CFPushHelper.h"
#define JPushSDK_AppKey @"顾名思义"
#define isProduction NO
@implementation AppDelegate (CFPushSDK)
- (void)JPushapplication:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
[CFPushHelper setupWithOption:launchOptions appKey:JPushSDK_AppKey channel:nil apsForProduction:isProduction advertisingIdentifier:nil];
//注册
NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
[defaultCenter addObserver:self selector:@selector(networkDidReceiveMessage:) name:kJPFNetworkDidLoginNotification object:nil];
}
//通知方法
- (void)networkDidReceiveMessage:(NSNotification *)notification {
//调用接口
NSLog(@"\n\n极光推送注册成功\n\n");
//通知后台registrationID
//NSLog(@"registrationID2 = %@",[CFPushHelper registrationID]);
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
if (![CFPushHelper registrationID]) {
NSString *registrationID = @"123";
[defaults setObject:registrationID forKey:@"registrationID"];
} else {
[defaults setObject:[CFPushHelper registrationID] forKey:@"registrationID"];
}
[defaults synchronize];
//[CFPushHelper registrationID]
//注销通知
[[NSNotificationCenter defaultCenter] removeObserver:self name:kJPFNetworkDidLoginNotification object:nil];
}
- (void)application:(UIApplication *)application
didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
/// Required - 注册 DeviceToken
//NSLog(@"%@", [NSString stringWithFormat:@"Device Token: %@", deviceToken]);
[CFPushHelper registerDeviceToken:deviceToken];
}
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler {
// IOS 7 Support Required
[CFPushHelper handleRemoteNotification:userInfo completion:completionHandler];
// 应用正处理前台状态下，不会收到推送消息，因此在此处需要额外处理一下
if (application.applicationState == UIApplicationStateActive) {
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:@"收到推送消息"
message:userInfo[@"aps"][@"alert"]
delegate:nil
cancelButtonTitle:@"取消"
otherButtonTitles:@"确定",nil];
[alert show];
}
//[self gotoViewControllerWith:userInfo];
[self gotoViewController];
}
- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error{
//NSLog(@"did Fail To Register For Remote Notifications With Error : %@",error);
return;
}
- (void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{
[CFPushHelper showLocalNotificationAtFront:notification identifierKey:nil];
return;
}
- (void)applicationDidBecomeActive:(UIApplication *)application{
[application setApplicationIconBadgeNumber:0];
[application cancelAllLocalNotifications];
return;
}
@end
#import "AppDelegate.h"
#import "JPUSHService.h"
@interface AppDelegate ()
@end
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
//注册极光推送
[self JPushapplication:application didFinishLaunchingWithOptions:launchOptions];
return YES;
}
暂时就这样