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みんな: j2me プラットフォームで実行する 1 つのプロジェクトを開発しました。proguard を使用すると、以下の警告が表示されます。

Initializing...
Warning: BtPrinterScreen: can't find referenced method 'void deleteAll()' in class javax.microedition.lcdui.List
Warning: BuyScreenNo: can't find referenced method 'void setTitle(java.lang.String)' in class javax.microedition.lcdui.Displayable
Warning: BuyScreenNo2: can't find referenced method 'void setTitle(java.lang.String)' in class javax.microedition.lcdui.Displayable
Warning: BuyScreenNo3: can't find referenced method 'void setTitle(java.lang.String)' in class javax.microedition.lcdui.Displayable
Warning: DecodeCanvas: can't find referenced method 'int getWidth()' in class javax.microedition.lcdui.Displayable
Warning: DecodeCanvas: can't find referenced method 'int getHeight()' in class javax.microedition.lcdui.Displayable
Warning: MenuScreen: can't find referenced method 'void deleteAll()' in class javax.microedition.lcdui.List
Warning: MenuScreen: can't find referenced method 'boolean platformRequest(java.lang.String)' in class javax.microedition.midlet.MIDlet
Warning: ResultScreen: can't find referenced method 'void setFont(javax.microedition.lcdui.Font)' in class javax.microedition.lcdui.StringItem
Warning: ResultScreen2: can't find referenced method 'void setFont(javax.microedition.lcdui.Font)' in class javax.microedition.lcdui.StringItem
Warning: there were 10 unresolved references to program class members.

いつでもオンラインであなたの助けを待っています。

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deleteAllメソッドは MIDP 2.0 で追加されました。必ずこのバージョン以降を使用してください。

于 2013-05-30T12:24:37.343 に答える