Da Huang

how to add background audio into SCAssetExportSession?

5

I'm trying to add a song into SCAssertExportSession, following code does not work. ```ios AVMutableComposition *comosition = [AVMutableComposition composition]; NSURL *audioInputUrl = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"Sin" ofType:@"mp3"]]; AVURLAsset *audioAsset =...

子表的cols里如何获得父表行数据

1

如题，子表的cols里如果如何获得父表行数据

$ mbed ls Test_CLI (None) |- BLE_API (8d97fced5440) |- mbed-os (8d21974ba35e) `- nRF51822 (2f9d154b4cf5) $ mbed compile -t GCC_ARM -m nRF51_DK Compile [ 95.6%]: btle_gap.cpp [Fatal Error] btle_gap.cpp@18,0: ble_gap.h: No...