修改Delphi 10.1.2 edit控件在android的复制剪切和粘贴样式

须知少年凌云志，曾许人间第一流。这篇文章主要讲述修改Delphi 10.1.2 edit控件在android的复制剪切和粘贴样式相关的知识，希望能为你提供帮助。
Delphi 10.1.2 edit控件在android默认的复制、剪切和粘贴样式太丑，经悟能-DelphiTeacher的提示，用最简单的代码修改后稍有改观。
默认的样式：

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修改后的样式：

文章图片

【修改Delphi 10.1.2 edit控件在android的复制剪切和粘贴样式】修改FMX.Platform.Android.pas
找到procedure TWindowManager.ShowContextMenu(const ItemsToShow: TContextMenuItems)，按下面的红字增加Copy、cut和Paste button的setBackgroundColor属性。
FCopyButton.setBackgroundColor(TAlphaColors.Yellowgreen); //------增加这行，可以根据自己的喜好修改
FCutButton.setBackgroundColor(TAlphaColors.Yellowgreen); //------增加这行，可以根据自己的喜好修改
FPasteButton.setBackgroundColor(TAlphaColors.Yellowgreen); //------增加这行，可以根据自己的喜好修改

procedure TWindowManager.ShowContextMenu(const ItemsToShow: TContextMenuItems);
var
LA: TTextLayout;
P: TPoint;
HasSelection, HasClipboard: Boolean;
ApproxWidth: Integer;
ApproxHeight: Integer;
ClipboardValue: TValue;
ResID: Integer;
TextInput: ITextInput;
VirtualKeyboard: IVirtualKeyboardControl;
ClipboardSvc: IFMXClipboardService;
begin
DestroyPasteMenuTimer;
ApproxWidth := FContextMenuPopupSize.cx;
ApproxHeight := FContextMenuPopupSize.cy;
if not FContextMenuVisible and Supports(FFocusedControl, ITextInput, TextInput) and not FSelectionInProgress then
begin
FContextMenuVisible := True;
HasSelection := not TextInput.GetSelection.IsEmpty;
TPlatformServices.Current.SupportsPlatformService(IFMXClipboardService, ClipboardSvc);
ClipboardValue := ClipboardSvc.GetClipboard;
HasClipboard := not ClipboardValue.IsEmpty and not ClipboardValue.ToString.IsEmpty;
if FContextMenuPopup = nil then
begin
FContextMenuLayout := TJLinearLayout.javaClass.init(TAndroidHelper.Activity);
FContextButtonsLayout := TJLinearLayout.JavaClass.init(TAndroidHelper.Activity);

LA := TTextLayoutManager.DefaultTextLayout.Create;
LA.Font.Style := LA.Font.Style + [TFontStyle.fsBold];

P := Point(0, 0);
Supports(FFocusedControl, IVirtualKeyboardControl, VirtualKeyboard);

if HasSelection then
begin
//Copy button
if (TContextMenuItem.Copy in ItemsToShow) and ((VirtualKeyboard = nil) or not VirtualKeyboard.IsPassword) then
begin
ResID := TAndroidHelper.GetResourceID(\'android:string/copy\');
if ResID < > 0 then
LA.Text := TAndroidHelper.GetResourceString(ResID)
else
LA.Text := SEditCopy.ToUpper;
FCopyButton := TJButton.JavaClass.init(TAndroidHelper.Activity);
if ResID < > 0 then
FCopyButton.setText(ResID)
else
FCopyButton.setText(StrToJCharSequence(LA.Text));
FCopyButton.setTypeface(TJTypeface.JavaClass.DEFAULT_BOLD);
FCopyButton.setBackgroundColor(TAlphaColors.Yellowgreen); //------增加这行，可以根据自己的喜好修改
FCopyClickListener := TCopyButtonClickListener.Create;
FCopyButton.setOnClickListener(FCopyClickListener);
LA.Font.Size := FCopyButton.getTextSize;
P.X := P.X + Ceil((LA.TextWidth + 2) * FScale);
P.Y := Max(P.Y, Ceil((LA.TextHeight + 2) * FScale));
ApproxHeight := P.Y + FCopyButton.getPaddingTop + FCopyButton.getPaddingBottom;
end;
//Cut button
if (TContextMenuItem.Cut in ItemsToShow) and not TextReadOnly and ((VirtualKeyboard = nil) or not VirtualKeyboard.IsPassword) then
begin
ResID := TAndroidHelper.GetResourceID(\'android:string/cut\');
if ResID < > 0 then
LA.Text := TAndroidHelper.GetResourceString(ResID)
else
LA.Text := SEditCut.ToUpper;
FCutButton := TJButton.JavaClass.init(TAndroidHelper.Activity);
if ResID < > 0 then
FCutButton.setText(ResID)
else
FCutButton.setText(StrToJCharSequence(LA.Text));
FCutButton.setTypeface(TJTypeface.JavaClass.DEFAULT_BOLD);
FCutButton.setBackgroundColor(TAlphaColors.Yellowgreen); //------增加这行，可以根据自己的喜好修改
FCutClickListener := TCutButtonClickListener.Create;
FCutButton.setOnClickListener(FCutClickListener);
LA.Font.Size := FCopyButton.getTextSize;
P.X := P.X + Ceil((LA.TextWidth + 2) * FScale);
P.Y := Max(P.Y, Ceil((LA.TextHeight + 2) * FScale));
end;
end;

if HasClipboard and (TContextMenuItem.Paste in ItemsToShow) and not TextReadOnly then
begin
//Paste button
ResID := TAndroidHelper.GetResourceID(\'android:string/paste\');
if ResID < > 0 then
LA.Text := TAndroidHelper.GetResourceString(ResID)
else
LA.Text := SEditPaste.ToUpper;
FPasteButton := TJButton.JavaClass.init(TAndroidHelper.Activity);
if ResID < > 0 then
FPasteButton.setText(ResID)
else
FPasteButton.setText(StrToJCharSequence(LA.Text));
FPasteButton.setTypeface(TJTypeface.JavaClass.DEFAULT_BOLD);
FPasteButton.setBackgroundColor(TAlphaColors.Yellowgreen); //------增加这行，可以根据自己的喜好修改
FPasteClickListener := TPasteButtonClickListener.Create;
FPasteButton.setOnClickListener(FPasteClickListener);
LA.Font.Size := FPasteButton.getTextSize;
P.X := P.X + Ceil((LA.TextWidth + 2) * FScale);
P.Y := Max(P.Y, Ceil((LA.TextHeight + 2) * FScale));
if ApproxHeight = 0 then
ApproxHeight := P.Y + FPasteButton.getPaddingTop + FPasteButton.getPaddingBottom;
end;