Method and electronic device for outputting image
Disclosed is an electronic device including a display, a memory, an input device configured to receive a user input, and a processor which stores a first image that is produced by a first application, in the memory, outputs the first image stored in the memory on the display by activation of the first application, if a second application is activated in response to the user input, provides the first image in a second image that is provided by the second application and stores the second image including the first image in the memory, and outputs the second image stored in the memory on the display.
1. An electronic device comprising:
a display;
a memory;
an input device configured to receive a user input; and
a processor electrically connected to the display, the memory, and the input device,
wherein the memory stores instructions which, when executed, cause the processor to:
in response to detecting that the user input is not received or that a specific time elapses after the user input disappears:
activate a watch application,
generate, by using the watch application, a first image representing a watch object,
store the first image in the memory,
output, by using the watch application, the first image stored in the memory, and
in response to detecting that the user input is received:
while simultaneously activating a home application and deactivating the watch application:
obtain, by using the home application, the first image stored in the memory,
generate, by using the home application, a second image by composing the first image and at least a portion of an image including a plurality of objects constituting a home screen of the electronic device, and
output the second image on the display,
wherein a first power consumption by the operations performed in response to detecting that the user input is not received or that the specific time elapses after the user input disappears is lower than a second power consumption by the operations performed in response to detecting that the user input is received.
2. The electronic device of claim 1 , wherein the first image is generated at a specific frame rate.
3. The electronic device of claim 1 , wherein the processor outputs, on the display, a third image that is generated by the home application, following the second image, based on another user input.
4. The electronic device of claim 1 , wherein the input device comprises a touch screen, and
wherein the user input comprises a touch input that is received through the touch screen.
5. The electronic device of claim 1 , wherein the input device comprises a ring-shaped rotary member that surrounds a periphery of the display and is rotatable on a surface center of the display, and
wherein the user input comprises a rotation input that is received through the ring-shaped rotary member.
6. The electronic device of claim 1 , wherein the input device comprises a sensor for detecting a motion of the electronic device, and
wherein the user input comprises a signal related to the motion detected from the sensor.
7. The electronic device of claim 1 , wherein the processor deactivates the watch application and the home application and turns off the display.
8. The electronic device of claim 1 , wherein, if the home application is activated, the processor is configured to:
provide data from the watch application to the home application,
obtain the first image stored in the memory by using the home application, and
include the first image in the second image by using the home application.
9. The electronic device of claim 8 , wherein the data is provided based on an inter-process communication between the watch application and the home application.