文本塊
該文件涵蓋了生成標籤和文本塊、設置和檢索文本塊上的文本,以及在標籤上設置文本。
生成標籤
使用用於輸入的文字創建標籤
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_createLabel\"><value name=\"labelText\"><shadow type=\"text\"><field name=\"TEXT\"/></shadow></value></block></xml>"}
此塊允許使用者按下標籤元素內的文字。 按下標籤元素後,它可以執行一些操作。
參數:
- 顯示設置:字串
- 螢幕物件(非輸入控制)
輸出: 屏幕物件
範例代碼:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>checkBox</variable><variable>labelWithText</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\">checkBox</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createCheckbox\"/></value><next><block type=\"variables_set\"><field name=\"VAR\">labelWithText</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createLabel\"><value name=\"labelText\"><shadow type=\"text\"><field name=\"TEXT\">Check box</field></shadow></value><value name=\"inputControl\"><block type=\"variables_get\"><field name=\"VAR\">checkBox</field></block></value></block></value><next><block type=\"ScreenItem_Layout_setDirection\"><field name=\"direction\">FlexDirection.Row</field><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">mainLayout</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\">labelWithText</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\">checkBox</field></block></value></block></next></block></next></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
輸出:

按一下「複選框」標籤後,複選框會顯示「刻度」符號:

生成 TextBlock
創建文字塊
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"true\"></mutation><value name=\"text\"><shadow type=\"text\"><field name=\"TEXT\"/></shadow></value><value name=\"isPreformatted\"><shadow type=\"logic_boolean\"><field name=\"BOOL\">FALSE</field></shadow></value></block></xml>"}
此塊用於創建帶有變數或文本的文字塊。
參數:
- 顯示設置:字串
- 屏幕專案
輸出: 屏幕專案
範例代碼:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>setContent</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\">setContent</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"1\" _input_init=\"true\"></mutation><value name=\"text\"><shadow type=\"text\"><field name=\"TEXT\">Hello</field></shadow></value><value name=\"isPreformatted\"><shadow type=\"logic_boolean\"><field name=\"BOOL\">FALSE</field></shadow></value></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\">setContent</field></block></value></block></next></block></next></block></next></block></statement></block></xml>"}
輸出:

在 TextBlock 上設置文字
文本塊設置內容
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">textBlock</field></block></value><value name=\"content\"><shadow type=\"text\"><field name=\"TEXT\"/></shadow></value></block></xml>"}
此塊用於設置帶有文本的附加內容。
參數:
- 螢幕物件(非輸入控制)
- 屏幕專案
輸出: N/A
範例代碼:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>textBlock</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\">textBlock</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation></block></value><next><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">textBlock</field></block></value><value name=\"content\"><shadow type=\"text\"><field name=\"TEXT\">Hello~</field></shadow></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\">textBlock</field></block></value></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
輸出:

在 TextBlock 上獲取文字
文本塊獲取內容
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_TextBlock_getContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">textBlock</field></block></value></block></xml>"}
這用於獲取文字塊變數中的內容。
參數: 螢幕專案(非輸入控制)
輸出: 屏幕專案
範例代碼:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>textBlock</variable><variable>getContent</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\">textBlock</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"1\" _input_init=\"true\"></mutation><value name=\"text\"><shadow type=\"text\"><field name=\"TEXT\">Hello</field></shadow></value></block></value><next><block type=\"variables_set\"><field name=\"VAR\">getContent</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation></block></value><next><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">getContent</field></block></value><value name=\"content\"><block type=\"Control_TextBlock_getContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">textBlock</field></block></value></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\">textBlock</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\">getContent</field></block></value></block></next></block></next></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
輸出:

在標籤上設置文本
標籤集內容
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">label</field></block></value><value name=\"content\"><shadow type=\"text\"><field name=\"TEXT\"/></shadow></value></block></xml>"}
此塊用於在標籤內設置文字。
參數:
- 螢幕物件(非輸入控制)
- 顯示設置:字串
輸出: N/A
範例代碼:
{"blocks":"<xml xmlns=\"https://developers.google.com/blockly/xml\"><variables><variable>mainLayout</variable><variable>mainScreen</variable><variable>label</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\">label</field><value name=\"VALUE\"><shadow type=\"math_number\"><field name=\"NUM\">0</field></shadow><block type=\"Control_createTextBlock\"><mutation xmlns=\"http://www.w3.org/1999/xhtml\" _expanded=\"0\" _input_init=\"false\"></mutation></block></value><next><block type=\"Control_TextBlock_setContent\"><value name=\"this\"><block type=\"variables_get\"><field name=\"VAR\">label</field></block></value><value name=\"content\"><shadow type=\"text\"><field name=\"TEXT\">This is label.</field></shadow></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\">label</field></block></value></block></next></block></next></block></next></block></next></block></statement></block></xml>"}
輸出:

目録