MOBILE DEVICE AND OPERATING METHOD OF INPUT METHOD THEREOF

A mobile device and operating method of input method thereof is related to the mobile device, which includes a general camera module, a specific camera module, a barcode-decoding module, a touch display module, and a control module. The barcode-decoding module is configured to capture one or more barcode patterns through the specific camera module and convert each of the barcode patterns into one or more first string. The touch display module is configured to display a display frame having an input field. The control module is configured to activate a virtual keyboard window of a system default input method and a trigger element of an image conversion input method in response to an input trigger event and control the touch display module to display an overlapping window of the image conversion input method on the display frame overlappingly in response to a first trigger event.