1 . A method of a mobile device for providing information to a point-of-sale (POS) device, the method comprising: receiving, by the mobile device, information of the POS device via wireless communication, while the mobile device is locked, wherein a first credit card image corresponding to a first credit card and a second credit card image corresponding to a second credit card are stored in the mobile device, and wherein the first credit card is assigned with a priority over the second credit card based on at least one of a preset standard or a user input; based on receiving the information of the POS device, displaying, by the mobile device, the first credit card image that corresponds to the first credit card assigned with the priority over the second credit card; while the first credit card image is displayed, receiving, via a fingerprint sensor of the mobile device, a first fingerprint input of a user of the mobile device; and based on the received first fingerprint input being valid and the mobile device being within a communicative range of the wireless communication of the POS device, providing, by the mobile device, to the POS device, first information of the first credit card corresponding to the displayed first credit card image.
2 . The method of claim 1 , further comprising, based on the received first fingerprint input being valid and being maintained over a time interval and the mobile device being within the communicative range of the wireless communication of the POS device, providing, by the mobile device, to the POS device, the first information of the first credit card corresponding to the displayed first credit card image.
3 . The method of claim 1 , further comprising automatically selecting, by the mobile device, the first credit card corresponding to the first credit card image to be displayed, based on the first credit card being assigned with the priority over the second credit card.
4 . The method of claim 1 , further comprising: based on receiving the information of the POS device, displaying, by the mobile device, the first credit card image, while displaying a portion of the second credit card image; while the first credit card image and the portion of the second credit card image are displayed, receiving, by the mobile device, from the user, a touch input corresponding to a selection of the displayed portion of the second credit card image; and based on the touch input being received: receiving, via the fingerprint sensor of the mobile device, a second fingerprint input of the user of the mobile device; and based on the received second fingerprint input being valid and the mobile device being within the communicative range of the wireless communication of the POS device, providing, by the mobile device, to the POS device, second information of the second credit card corresponding to the displayed portion of the second credit card image.
5 . The method of claim 1 , further comprising, while the first credit card image is displayed, recognizing, by the mobile device, a fingerprint of the user, based on the received first fingerprint input.
6 . The method of claim 5 , further comprising, while the first credit card image is displayed, determining, by the mobile device, that the received first fingerprint input is valid, based on the recognized fingerprint matching user fingerprint information that is stored in the mobile device.
7 . The method of claim 1 , wherein the first information of the first credit card is provided via near field communication (NFC).
8 . A mobile device for providing information to a point-of-sale (POS) device, the mobile device comprising: a memory storing instructions; and a processor configured to execute the stored instructions to at least: receive information of the POS device via wireless communication, while the mobile device is locked, wherein a first credit card image corresponding to a first credit card and a second credit card image corresponding to a second credit card are stored in the mobile device, and wherein the first credit card is assigned with a priority over the second credit card based on at least one of a preset standard or a user input; based on receiving the information of the POS device, control to display the first credit card image that corresponds to the first credit card assigned with the priority over the second credit card; while the first credit card image is displayed, receive, via a fingerprint sensor of the mobile device, a first fingerprint input of a user of the mobile device; and based on the received first fingerprint input being valid and the mobile device being within a communicative range of the wireless communication of the POS device, control to provide, to the POS device, first information of the first credit card corresponding to the displayed first credit card image.
9 . The mobile device of claim 8 , wherein the processor is further configured to execute the stored instructions to, based on the received first fingerprint input being valid and being maintained over a time interval and the mobile device being within the communicative range of the wireless communication of the POS device, control to provide, to the POS device, the first information of the first credit card corresponding to the displayed first credit card image.
10 . The mobile device of claim 8 , wherein the processor is further configured to execute the stored instructions to automatically select the first credit card corresponding to the first credit card image to be displayed, based on the first credit card being assigned with the priority over the second credit card.
11 . The mobile device of claim 8 , wherein the processor is further configured to execute the stored instructions to: based on receiving the information of the POS device, control to display the first credit card image, while displaying a portion of the second credit card image; while the first credit card image and the portion of the second credit card image are displayed, receive, from the user, a touch input corresponding to a selection of the displayed portion of the second credit card image; and based on the touch input being received: receive, via the fingerprint sensor of the mobile device, a second fingerprint input of the user of the mobile device; and based on the received second fingerprint input being valid and the mobile device being within the communicative range of the wireless communication of the POS device, control to provide, to the POS device, second information of the second credit card corresponding to the displayed portion of the second credit card image.
12 . The mobile device of claim 8 , wherein the processor is further configured to execute the stored instructions to, while the first credit card image is displayed, recognize a fingerprint of the user, based on the received first fingerprint input.
13 . The mobile device of claim 12 , wherein the processor is further configured to execute the stored instructions to, while the first credit card image is displayed, determine that the received first fingerprint input is valid, based on the recognized fingerprint matching user fingerprint information that is stored in the mobile device.
14 . The mobile device of claim 8 , wherein the first information of the first credit card is provided via near field communication (NFC).
15 . A non-transitory computer-readable medium storing instructions executable by a processor of a mobile device for providing information to a point-of-sale (POS) device, to cause the processor to at least: obtain information of the POS device via wireless communication, while the mobile device is locked, wherein a first credit card image corresponding to a first credit card and a second credit card image corresponding to a second credit card are stored in the mobile device, and wherein the first credit card is assigned with a priority over the second credit card based on at least one of a preset standard or a user input; based on obtaining the information of the POS device, control to display the first credit card image that corresponds to the first credit card assigned with the priority over the second credit card; while the first credit card image is displayed, obtain, via a fingerprint sensor of the mobile device, a first fingerprint input of a user of the mobile device; and based on the obtained first fingerprint input being valid and the mobile device being within a communicative range of the wireless communication of the POS device, control to provide, to the POS device, first information of the first credit card corresponding to the displayed first credit card image.
16 . The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the processor to, based on the obtained first fingerprint input being valid and being maintained over a time interval and the mobile device being within the communicative range of the wireless communication of the POS device, control to provide, to the POS device, the first information of the first credit card corresponding to the displayed first credit card image.
17 . The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the processor to automatically select the first credit card corresponding to the first credit card image to be displayed, based on the first credit card being assigned with the priority over the second credit card.
18 . The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the processor to: based on obtaining the information of the POS device, control to display the first credit card image, while displaying a portion of the second credit card image; while the first credit card image and the portion of the second credit card image are displayed, obtain, from the user, a touch input corresponding to a selection of the displayed portion of the second credit card image; and based on the touch input being obtained: obtain, via the fingerprint sensor of the mobile device, a second fingerprint input of the user of the mobile device; and based on the obtained second fingerprint input being valid and the mobile device being within the communicative range of the wireless communication of the POS device, control to provide, to the POS device, second information of the second credit card corresponding to the displayed portion of the second credit card image.
19 . The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the processor to, while the first credit card image is displayed, recognize a fingerprint of the user, based on the obtained first fingerprint input.
20 . The non-transitory computer-readable medium of claim 19 , wherein the instructions further cause the processor to, while the first credit card image is displayed, determine that the obtained first fingerprint input is valid, based on the recognized fingerprint matching user fingerprint information that is stored in the mobile device.
