Processing method and handheld device

1. A method, applied to a handheld device with an infrared remote control application, wherein a USB interface of the handheld device is connected to a port of a display device by using an adapter cable, and the method comprises:

determining, by the handheld device, that a preset source port of the display device is not the port of the display device, and automatically switching the preset source port to the port of the display device by using the infrared remote control application; and

sending, by the handheld device, to-be-displayed content of the handheld device to the display device by using the USB interface, the adapter cable, and the port of the display device, to enable the display device to display the to-be-displayed content, wherein the to-be-displayed content comprises content displayed by a display of the handheld device, or a preset user interface of the handheld device.

2. The method according to claim 1 , wherein determining, by the handheld device, that the source port for displaying content of the display device is not the port of the display device comprises:

determining, by the handheld device based on a parameter value obtained by using the USB interface, that the source port is not the port of the display device.

3. The method according to claim 2 , wherein automatically switching the source port to the port of the display device by using the infrared remote control application comprises:

automatically starting the infrared remote control application, and triggering, by using the infrared remote control application, the handheld device to send an infrared instruction to the display device, wherein the infrared instruction is configured to instruct the display device to switch the source port to the port of the display device, and an identifier of the port is obtained by the handheld device from the display device by using the USB interface.

4. The method according to claim 2 , wherein a remote control code of the infrared remote control application is automatically set by the handheld device based on at least one of a brand parameter or a model parameter of the display device, and the brand parameter or the model parameter of the display device is obtained by the handheld device from the display device by using the USB interface.

5. The method according to claim 1 , wherein automatically switching the source port to the port of the display device by using the infrared remote control application comprises:

automatically starting the infrared remote control application, and triggering, by using the infrared remote control application, the handheld device to send an infrared instruction to the display device, wherein the infrared instruction is configured to instruct the display device to switch the source port to the port of the display device, and an identifier of the port of the display device is obtained by the handheld device from the display device by using the USB interface.

6. The method according to claim 1 , wherein a remote control code of the infrared remote control application is automatically set by the handheld device based on at least one of a brand parameter or a model parameter of the display device, and the brand parameter or the model parameter of the display device is obtained by the handheld device from the display device by using the USB interface.

7. The method according to claim 1 , wherein a type of the USB interface comprises one of a USB Type-A interface, a USB Type-B interface, a USB Mini-A interface, a USB Mini-B interface, a USB Micro-A interface, a USB Micro-B interface, or a USB Type-C interface, and a type of the port of the display device comprises one of an HDMI port, a DP port, a MINI DP port, a USB port, a VGA port, or a DVI port.

8. A handheld device, wherein a USB interface of the handheld device is connected to a port of a display device by an adapter cable, and

the handheld device comprises:

an infrared emitting apparatus;

one or more processors;

a memory; and

an infrared remote control application;

wherein the memory is configured to store one or more programs configured to be executed by the one or more processors such that when the one or more programs are executed by the one or more processors, the one or more processors are caused to:

determine that a preset source port of the display device is not the port of the display device, and automatically switch the source port to the port of the display device by using the infrared remote control application; and

send to-be-displayed content of the handheld device to the display device by using the USB interface, the adapter cable, and the port of the display device to enable the display device to display the to-be-displayed content, wherein the to-be-displayed content comprises content displayed by a display of the handheld device, or a preset user interface of the handheld device.

9. The handheld device according to claim 8 , wherein the one or more processors are further caused to determine, based on a parameter value obtained by using the USB interface, that the source port is not the port of the display device.

10. The handheld device according to claim 9 , wherein the one or more processors are further caused to: automatically start the infrared remote control application, and trigger, by using the infrared remote control application, the handheld device to send an infrared instruction to the display device, wherein the infrared instruction is configured to instruct the display device to switch the source port to the port of the display device, and an identifier of the port of the display device is obtained by the handheld device from the display device by using the USB interface.

11. The handheld device according to claim 9 , wherein a remote control code of the infrared remote control application is automatically set by the handheld device based on at least one of a brand parameter or a model parameter of the display device, and the brand parameter or the model parameter of the display device is obtained by the handheld device from the display device by using the USB interface.

12. The handheld device according to claim 8 , wherein the one or more processors are further caused to: automatically start the infrared remote control application, and trigger, by using the infrared remote control application, the handheld device to send an infrared instruction to the display device, wherein the infrared instruction is configured to instruct the display device to switch the source port to the port of the display device, and an identifier of the port of the display device is obtained by the handheld device from the display device by using the USB interface.

13. The handheld device according to claim 8 , wherein a remote control code of the infrared remote control application is automatically set by the handheld device based on at least one of a brand parameter or a model parameter of the display device, and the brand parameter or the model parameter of the display device is obtained by the handheld device from the display device by using the USB interface.

14. The handheld device according to claim 8 , wherein a type of the USB interface comprises one of a USB Type-A interface, a USB Type-B interface, a USB Mini-A interface, a USB Mini-B interface, a USB Micro-A interface, a USB Micro-B interface, or a USB Type-C interface, and a type of the port of the display device comprises one of an HDMI port, a DP port, a MINI DP port, a USB port, a VGA port, or a DVI port.

15. A non-transitory computer-readable storage medium for storing one or more programs, wherein the one or more programs comprise an instruction, and when the instruction is executed by a handheld device, wherein a USB interface of the handheld device with an infrared remote control application is connected to a port of a display device by using an adapter cable, the handheld device performs the following operations:

determining, by the handheld device, that a preset source port of the display device is not the port of the display device, and automatically switching the source port to the port of the display device by using the infrared remote control application; and

sending, by the handheld device, to-be-displayed content of the handheld device to the display device by using the USB interface, the adapter cable, and the port of the display device to enable the display device to display the to-be-displayed content, wherein the to-be-displayed content comprises content displayed by a display of the handheld device, or a preset user interface of the handheld device.

16. The non-transitory computer-readable storage medium according to claim 15 , wherein that the handheld device determines that the source port for displaying content of the display device is not the port of the display device comprises:

determining, by the handheld device based on a parameter value obtained by using the USB interface, that the source port is not the port of the display device.

17. The non-transitory computer-readable storage medium according to claim 16 , wherein automatically switching the source port to the port of the display device by using the infrared remote control application comprises:

automatically starting the infrared remote control application, and triggering, by using the infrared remote control application, the handheld device to send an infrared instruction to the display device, wherein the infrared instruction is configured to instruct the display device to switch the source port to the port of the display device, and an identifier of the port of the display device is obtained by the handheld device from the display device by using the USB interface.

18. The non-transitory computer-readable storage medium according to claim 15 , wherein automatically switching the source port to the port of the display device by using the infrared remote control application comprises:

automatically starting the infrared remote control application, and triggering, by using the infrared remote control application, the handheld device to send an infrared instruction to the display device, wherein the infrared instruction is configured to instruct the display device to switch the source port to the port of the display device, and an identifier of the port of the display device is obtained by the handheld device from the display device by using the USB interface.

19. The non-transitory computer-readable storage medium according to claim 15 , wherein a remote control code of the infrared remote control application is automatically set by the handheld device based on at least one of a brand parameter or a model parameter of the display device, and the brand parameter or the model parameter of the display device is obtained by the handheld device from the display device by using the USB interface.

20. The non-transitory computer-readable storage medium according to claim 15 , wherein a type of the USB interface comprises one of a USB Type-A interface, a USB Type-B interface, a USB Mini-A interface, a USB Mini-B interface, a USB Micro-A interface, a USB Micro-B interface, or a USB Type-C interface, and a type of the port of the display device comprises one of an HDMI port, a DP port, a MINI DP port, a USB port, a VGA port, or a DVI port.