Data caching method and electronic device

An electronic device, comprising a transceiver, at least one processor, and a memory, wherein the memory is configured to store a computer program, and the at least one processor is configured to invoke the computer program, and the computer program comprises instructions for:

• running a target application, and caching data of the target application based on a first cache policy, wherein the first cache policy comprises at least one of the following:
• downloading the data of the target application at a first download rate;
• downloading the data of the target application at a first bit rate;
• downloading the data of the target application at a first resolution;
• downloading the data of the target application at a first frame rate;
• requesting the data of the target application by using a first quantity of request times, wherein the first quantity of request times is a quantity of request times in a preset unit of time;
• caching first type data and second type data, wherein the first type is different from the second type;
• downloading the data of the target application at a first sampling frequency;
• downloading the data of the target application by using a first quantity of sampling bits;
• or downloading the data of the target application by using a first quantity of sound channels;
• sending, by the target application when detecting that the target application is switched from background running to foreground running or is started, a registration message to a control component to obtain first indication information, the registration message containing registration information that identifies the target application and registers a first notification event;
• receiving, by the target application, first indication information sent by the control component;
• and
• caching data of the target application based on a second cache policy after the target application receives the first indication information, wherein the second cache policy comprises at least caching the first type data and skipping caching the second type data,
• wherein the control component comprises a service abnormality predictor and the transceiver, and
• wherein the first indication information indicates that an abnormal area exists in a forward direction of the electronic device, a first location exists between the abnormal area and a current location, no cell other than a current cell exists between the current location and the first location, and the abnormal area is an area whose distance from the current location is within a first distance range.