如何從iPhone中讀取電池盒狀態？

Question

可能重複：
How to get battery status?

我在執行中，我想通過編程來讀取iPhone的電池狀態一個iPhone應用程序。我不知道這是否可能。請給我建議。

Answer 1

讀取電池電量和狀態，你只需要：

float battLvl = [[UIDevice currentDevice] batteryLevel]; // range is from 0.0 to 1.0 
UIDeviceBatteryState battState = [UIDevice currentDevice] batteryStatus]; 

監測電池的使用水平和狀態，你可以做到以下幾點：

// enable monitoring and add observers with selector 
UIDevice *device = [UIDevice currentDevice]; 
device.batteryMonitoringEnabled = YES; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(batteryChanged:) name:@"UIDeviceBatteryLevelDidChangeNotification" object:device]; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(batteryChanged:) name:@"UIDeviceBatteryStateDidChangeNotification" object:device]; 

// Your notification handler 
- (void)batteryChanged:(NSNotification *)notification 
{ 
    UIDevice *device = [UIDevice currentDevice]; 
    NSLog(@"state: %i | charge: %f", device.batteryState, device.batteryLevel); 
} 

Answer 2

的代碼下面幾行會有所幫助：

[[UIDevice currentDevice] setBatteryMonitoringEnabled:YES]; 

[[UIDevice currentDevice] batteryLevel]; 
[[UIDevice currentDevice] batteryState]; 

有關詳細信息，請參閱THIS鏈接。它會詳細說明你。