获得当前 App 的内存占用情况

// 获得当前 App 的内存占用情况

- (NSUInteger)getResidentMemory

 {

structtask_basic_infot_info;

mach_msg_type_number_tt_info_count = TASK_BASIC_INFO_COUNT;

int r = task_info(mach_task_self(), TASK_BASIC_INFO, (task_info_t)&t_info, &t_info_count);

if(r == KERN_SUCCESS)

 { 

 NSLog(@"resident_size %lu",t_info.resident_size /1024/1024);

return t_info.resident_size; 

 }else

{return-1; }}