- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    NSString * const licenceURL = @"<your license Url>";
    NSString * const licenceKey = @"<your license key>";

    //TXLiveBase is in "TXLiveBase.h"
    [TXLiveBase setLicenceURL:licenceURL key:licenceKey]; 
    NSLog(@"SDK Version = %@", [TXLiveBase getSDKVersionStr]);
}

/**
 * Picture-in-picture status callback
 *
 */
- (void)onPlayer:(TXVodPlayer *)player pictureInPictureStateDidChange:(TX_VOD_PLAYER_PIP_STATE)pipState withParam:(NSDictionary *)param;

/**
 * Picture-in-picture error message callback
 *
 */
- (void)onPlayer:(TXVodPlayer *)player pictureInPictureErrorDidOccur:(TX_VOD_PLAYER_PIP_ERROR_TYPE)errorType withParam:(NSDictionary *)param;


// 1. Before playing, set whether the "automatic switching Picture-In-Picture function" is allowed.
// YES means allowed, NO means not allowed, the default is NO
[TXVodPlayer setPictureInPictureSeamlessEnabled:YES];

// 2. Enter picture-in-picture
 if (![TXVodPlayer isSupportPictureInPicture]) {
   //The device does not support picture-in-picture and exit directly.
    return;
 }

// Manually call to enter picture-in-picture
 [_vodPlayer enterPictureInPicture];

// 3. Exit the background operation. If the device supports seamless switching of picture-in-picture, the playback will not be paused when exiting the background.
// Note: The isSupportSeamlessPictureInPicture interface can only be used after the application loads the advanced version License. At the same time, this interface can only determine the device itself
// Whether automatic switching of picture-in-picture is supported? Due to system limitations, it is impossible to determine the user's setting permissions for automatic picture-in-picture. You need to guide it yourself.
if ([self.vodplayer isSupportSeamlessPictureInPicture]) {
 	 // No processing
} else {
   // Pause playback
   [self.vodplayer pause];
}

// 4. Exit picture-in-picture
[_vodPlayer exitPictureInPicture];