處理應用程式顯示變更

在 AIR，您可以將應用程式描述器中的 softKeyboardBehavior 元素設定為 none ，藉此關閉與顯示軟鍵盤相關的預設左右相位和調整大小行為。

<softKeyboardBehavior>none</softKeyboardBehavior>

當您關閉自動行為時，您的應用程式會負責對應用程式顯示進行所需的調整。當鍵盤開啟時，會傳送 softKeyboardActivate 事件。當傳送 softKeyboardActivate 事件時，舞台的 softKeyboardRect 屬性會包含開啟的鍵盤所遮住之區域的尺寸。使用這些尺寸來移動或調整內容大小，以便在開啟鍵盤和在使用者輸入時適當地顯示內容 (當鍵盤關閉時，softKeyboardRect 矩形的尺寸會全部為零)。

當鍵盤關閉時，會傳送 softKeyboardDeactivate 事件，而您可使應用程式顯示回復為正常狀態。

package  {        
    import flash.display.MovieClip; 
    import flash.events.SoftKeyboardEvent; 
    import flash.events.Event; 
    import flash.display.StageScaleMode; 
    import flash.display.StageAlign; 
    import flash.display.InteractiveObject; 
    import flash.text.TextFieldType; 
    import flash.text.TextField; 
     
    public class PanningExample extends MovieClip { 
                     
        private var textField:TextField = new TextField(); 
         
        public function PanningExample() {             
            this.stage.scaleMode = StageScaleMode.NO_SCALE; 
            this.stage.align = StageAlign.TOP_LEFT; 
             
            textField.y = this.stage.stageHeight - 201; 
            textField.width = this.stage.stageWidth; 
            textField.height = 200; 
            textField.type = TextFieldType.INPUT; 
            textField.border = true; 
            textField.wordWrap = true; 
            textField.multiline = true; 
             
            this.addChild( textField ); 
             
            //track soft keyboard and stage resize events 
            textField.addEventListener(SoftKeyboardEvent.SOFT_KEYBOARD_ACTIVATE, onKeyboardChange ); 
            textField.addEventListener(SoftKeyboardEvent.SOFT_KEYBOARD_DEACTIVATE, onKeyboardChange ); 
            this.stage.addEventListener( Event.RESIZE, onDisplayAreaChange ); 
        } 
     
        private function onDisplayAreaChange( event:Event ):void 
        { 
            textField.y = this.stage.stageHeight - 201; 
            textField.width = this.stage.stageWidth; 
        } 
         
        private function onKeyboardChange( event:SoftKeyboardEvent ):void 
        { 
            var field:InteractiveObject = textField; 
            var offset:int = 0; 
 
            //if the softkeyboard is open and the field is at least partially covered 
            if( (this.stage.softKeyboardRect.y != 0) && (field.y + field.height > this.stage.softKeyboardRect.y) ) 
                offset = field.y + field.height - this.stage.softKeyboardRect.y; 
                 
            //but don't push the top of the field above the top of the screen 
            if( field.y - offset < 0 ) offset += field.y - offset; 
             
            this.y = -offset;             
        }         
    } 
}

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