美文网首页
黑科技:iOS状态栏获取网络类型,运营商,电池电量,显示的系统时

黑科技:iOS状态栏获取网络类型,运营商,电池电量,显示的系统时

作者: 差一点不是帅哥 | 来源:发表于2017-05-27 14:00 被阅读0次

    此篇文章讲述iOS中的状态栏

    iOS开发中对状态栏的操作比较少,因为状态栏是系统级别的View,是受苹果保护的,不可以随便更改,不可以随便遮挡住。如果违反这些苹果的规范,那么APP将有可能上不了架。笔者就曾写过一个APP,因状态栏被提示框遮挡而被拒(杯具)了。

    iOS开发中最常见的对状态栏的操作就是设置状态栏的样式,比如: [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];(此样式的状态栏中的字为白色,所以用在导航栏为深色的情况下,例如黑色或者红色的导航栏)

    还有

    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];(此样式的状态栏中的字为黑色色,所以用在导航栏为浅色色的情况下,比如白色的导航栏)

    如果你设置了,发现状态栏没反应,那么你要去info.plist中加一个key,这个key为View controller-based status bar appearance,对应的value为NO。这样每个vc中就可以随便设置状态栏的样式了。

    那么实际上我们可以拿到状态栏这个UIView对象。为了不让苹果看到我们用了某某私有API,我们这样做:

    - (UIView*)statusBarView{

    UIView *statusBar = nil;

    NSData *data = [NSData dataWithBytes:(unsigned char []){0x73, 0x74, 0x61, 0x74, 0x75, 0x73, 0x42, 0x61, 0x72} length:9];

    NSString *key = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding];

    id object = [UIApplication sharedApplication];

    if ([object respondsToSelector:NSSelectorFromString(key)]) statusBar = [object valueForKey:key];

    return statusBar;

    }

    调用这个方法就可以拿到系统的状态栏对象,是个UIView,那么UIView我们最熟悉了,我们可以改变状态栏的颜色,大小位置(frame)等等。

    下面我们要从状态栏中获取我们想要的信息

    定义一个工具类StatusBarTool,用来获取网络类型,运营商,电池电量,显示的系统时间等信息。那么直接看代码:

    ----------------------------------------.h文件-------------------------------

    #import < Foundation/Foundation.h >

    #import < UIKit/UIKit.h >

    //0 枚举 - 无网络 ; 1 - 2G ; 2 - 3G ; 3 - 4G ; 5 - WIFI

    typedef NS_ENUM(NSUInteger, NetWorkType) {

    NetWorkTypeNone=0,

    NetWorkType2G=1,

    NetWorkType3G=2,

    NetWorkType4G=3,

    NetWorkTypeWiFI=5,

    };

    @interface StatusBarTool : NSObject

    /** @return 当前网络类型 */

    +(NetWorkType )currentNetworkType;

    /** @return SIM卡所属的运营商(公司)*/

    +(NSString *)serviceCompany;

    /** @return 当前电池电量百分比*/

    +(NSString *)currentBatteryPercent;

    /** @return 当前时间显示的字符串 */

    +(NSString *)currentTimeString;

    @end

    -----------------------------------------.m实现文件(很重要) -------------------------------------

    #import “StatusBarTool.h”

    @ implementation StatusBarTool

    +(NSString *)currentBatteryPercent{

    NSArray *infoArray = [[[[UIApplication sharedApplication] valueForKeyPath:@”statusBar”]  valueForKeyPath:@”foregroundView”] subviews];

    for (id info in infoArray){

    if ([info isKindOfClass:NSClassFromString(@”UIStatusBarBatteryPercentItemView”)])

    {

    NSString *percentString = [info valueForKeyPath:@”percentString”];

    NSLog(@”电量为:%@”,percentString);

    return percentString;

    }

    }

    return @"";

    }

    +(NetWorkType )currentNetworkType{

    NSArray *infoArray = [[[[UIApplication sharedApplication] valueForKeyPath:@”statusBar”] valueForKeyPath:@”foregroundView”] subviews];

    NetWorkType type;

    for (id info in infoArray){

    if ([info isKindOfClass:NSClassFromString(@”UIStatusBarDataNetworkItemView”)]) {

    type = [[info valueForKeyPath:@”dataNetworkType”] integerValue];

    NSLog(@”—-%lu”, (unsigned long)type);

    return (NetWorkType)type;

    }

    }

    return NetWorkTypeNone;

    }

    +(NSString *)currentTimeString{

    NSArray *infoArray = [[[[UIApplication sharedApplication] valueForKeyPath:@”statusBar”] valueForKeyPath:@”foregroundView”] subviews];

    for (id info in infoArray){

    if ([info isKindOfClass:NSClassFromString(@”UIStatusBarTimeItemView”)]){

    NSString *timeString = [info valueForKeyPath:@”timeString”];

    NSLog(@”当前显示时间为:%@”,timeString);

    return timeString;

    }

    }

    return @"";

    }

    +(NSString *)serviceCompany{

    NSArray *infoArray = [[[[UIApplication sharedApplication] valueForKeyPath:@”statusBar”] valueForKeyPath:@”foregroundView”] subviews];

    for (id info in infoArray){

    if ([info isKindOfClass:NSClassFromString(@”UIStatusBarServiceItemView”)]){

    NSString *serviceString = [info valueForKeyPath:@”serviceString”];

    NSLog(@”公司为:%@”,serviceString);

    return serviceString;

    }

    }

    return @"";

    }

    @end

    ---------------------------.m 结束----------------------------

    用StatusBarTool这个类的时候

    NSString *company = [StatusBarTool serviceCompany];

    NSLog(@”company = %@”,company);

    company = 中国移动

    NetWorkType type = [StatusBarTool currentNetworkType];

    NSLog(@”type = %ld”,type);

    type = 5(5代表Wi-Fi)

    /*typedef NS_ENUM(NSUInteger, NetWorkType) {

    NetWorkTypeNone=0,

    NetWorkType2G=1,

    NetWorkType3G=2,

    NetWorkType4G=3,

    NetWorkTypeWiFI=5,

    };*/

    NSString *batteryPercent = [StatusBarTool currentBatteryPercent];

    NSLog(@”batteryPercent = %@”,batteryPercent);

    batteryPercent �� = 96%

    NSString *timeString = [StatusBarTool currentTimeString];

    NSLog(@”timeString = %@”,timeString);

    timeString = 12:57

    好了,到此我们已经拿到了网络状态,运营商,电池电量百分比,时间显示等信息了。

    注明:此文章来源源自  http://www.jianshu.com/p/ef16cd7ed773,若有侵犯,请联系我及时删除。

    相关文章

      网友评论

          本文标题:黑科技:iOS状态栏获取网络类型,运营商,电池电量,显示的系统时

          本文链接:https://www.haomeiwen.com/subject/ltrqfxtx.html