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File Format Restriction

File Input filter file type

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_FileInput_setFileTypeFilter\"><field name=\"filter\">FileInputTypeFilter.None</field><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value></block></xml>"}
				
			

This block restricts user to select the file with their file type.

Parameters:

            • Screen Item (Input Control: File Input)
            • Display setting: none (Default)/image/video/audio

Output: N/A
Sample code:

				
					{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>fileInput</variable></variables><block type=\"pxt-on-start\" x=\"0\" y=\"0\"><statement name=\"HANDLER\"><block type=\"variables_set\"><field name=\"VAR\">mainLayout</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"ScreenItem_createLayout\"/></value><next><block type=\"variables_set\"><field name=\"VAR\">mainScreen</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Screen_create\"><value name=\"label\"><shadow type=\"text\"><field name=\"TEXT\">Main</field></shadow></value><value name=\"layout\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">fileInput</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createFileInput\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation></block></value><next><block type=\"Control_FileInput_setFileTypeFilter\"><field name=\"filter\">FileInputTypeFilter.Audio</field><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value><next><block type=\"ScreenItem_Layout_add\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</field></block></value><value name=\"item\"><block type=\"variables_get\"><field name=\"VAR\">fileInput</field></block></value></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
				
			

The output after choosing a file with no restriction:

The output after choosing a file with only allow image input (Accepted file type: JPEG, PNG, etc):

The output after choosing a file with only allow video input (Accepted file type: MP4, M4A, etc):

The output after choosing a file with only allow audio input (Accepted file type: MP3, WAV, etc):