AdMob插页式广告未在模拟器中显示

Question

这是我的代码，用于在其日志中始终显示插页式广告：“要在此设备上获取测试广告，请致电： request.testDevices = @[ Simulator ];

[super viewDidLoad];

[interstitial_ presentFromRootViewController:self];

interstitial_ = [[GADInterstitial alloc] init];

interstitial_.adUnitID = @"MY_ID";

[interstitial_ loadRequest:[GADRequest request]];



GADRequest *request = [GADRequest request];

request.testDevices = [NSArray arrayWithObject:@[GAD_SIMULATOR_ID]];

[interstitial_ loadRequest:request];