flex4 TextArea中的IUITextField等效项
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我有一些使用TextArea从char索引中选择一行的flex3代码：
var tf:IUITextField=ta.mx_internal::getTextField();
var lineIndex:int= tf.getLineIndexOfChar(someCharIndex);
var lineCharIndex:int= tf.getLineOffset(lineIndex);
var lineLength:int= tf.getLineLength(lineIndex);
ta.setSelection(lineCharIndex, lineCharIndex+lineLength);
没有找到相关结果
已邀请:
1 个回复
究补闯
通过Spark选择文本行：<?xml version=\"1.0\" encoding=\"utf-8\"?> <s:Application xmlns:fx=\"http://ns.adobe.com/mxml/2009\" xmlns:s=\"library://ns.adobe.com/flex/spark\" xmlns:mx=\"library://ns.adobe.com/flex/mx\" minWidth=\"955\" minHeight=\"600\" creationComplete=\"init()\"> <fx:Script> <![CDATA[ import flashx.textLayout.compose.TextFlowLine; import flashx.textLayout.elements.TextFlow; import flashx.textLayout.events.SelectionEvent; private function init():void { var textFlow:TextFlow = ta.textFlow; textFlow.addEventListener(SelectionEvent.SELECTION_CHANGE, textFlow_selectionChangeHandler); } private function textFlow_selectionChangeHandler(event:SelectionEvent):void { // Just getting char index var selectionStart:int = event.selectionState.absoluteStart; var textFlow:TextFlow = ta.textFlow; var line:TextFlowLine = textFlow.flowComposer.findLineAtPosition(selectionStart); ta.selectRange(line.absoluteStart, line.absoluteStart + line.textLength); } ]]> </fx:Script> <s:TextArea width=\"400\" height=\"200\" verticalCenter=\"0\" horizontalCenter=\"0\" id=\"ta\"> Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. </s:TextArea> </s:Application>方法中。确定char位置后，我们提取该位置的，然后选择它。要测试此代码，只需单击ѭ1中的某个位置。 希望这可以帮助！