Question

listview中的每一行都有2个按钮。要显示的文本取决于某些特征，因此我想更改Button上的文本。但是，我不仅无法更改文本，而且显示的文本就像按钮的内部地址，即＆＃34; ANDROID.WIDGET.BUTTON {175F420 VFED..C .. ....我。 0,0-0,0＃7F0C00083 APP：ID / READ}这是我的代码：

import android.widget.Button;
....

public void ShowArticles(){

ArrayList<ArticleSelection> articleSelectionList = helper
            .GetArticleListForResource(globalVariable.getCategoryIndex());


    String[] columnNames = {"_id", "Column1", "Column2", "Column3",
            "Column4", "Column5", "Column6", "Column7"};
    MatrixCursor matrixCursor = new MatrixCursor(new String[]{"_id",
            "Column1", "Column2", "Column3", "Column4", "Column5", "Column6", "Column7" });

    int[] to = new int[]{R.id.id, R.id.imageButton, R.id.title, R.id.year, R.id.authors,
            R.id.favs, R.id.read, R.id.readOnLine};


for (ArticleSelection articleItem : articleSelectionList) {

     Button btn1 = (Button) ThisView.findViewById(R.id.read);
     Button btn2 = (Button) ThisView.findViewById(R.id.readOnLine);

     if (Downloaded == "Y"){
         btn1.setText("Read");
     }
     else btn1.setText("Download");

     matrixCursor.addRow(new Object[]{k, imgFile,Title, Year , Authors, favs , btn1, btn2 });
}

SimpleCursorAdapter menuItems = null;
menuItems = new SimpleCursorAdapter(
        this, R.layout.article_row, matrixCursor, columnNames, to);

listView.setAdapter(menuItems);
}

我的按钮XML：

   <Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/read"
    android:backgroundTint="#00000000"
    android:text="Download"
    android:layout_toRightOf="@+id/favs"
    android:layout_alignBottom="@+id/imageButton"
    android:layout_marginStart="11dp"
    android:layout_weight="1"
    />
<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id = "@+id/readOnLine"
    android:backgroundTint="#00000000"
    android:layout_toRightOf="@+id/read"
    android:text="Read Online"
    android:layout_alignBottom="@+id/imageButton"
    android:layout_alignParentEnd="true"
    android:layout_weight="1"
    />

谢谢。答案可能很简单，因为我之前已经这样做了，但我不认为我已经在一系列列表视图中完成了它。我已经看到了关于向按钮添加文本的其他答案，以及我尝试过的那些。

Answer 1

首先在for循环之外声明你的Button

Button btn1 = (Button) ThisView.findViewById(R.id.read);
Button btn2 = (Button) ThisView.findViewById(R.id.readOnLine);

在String使用equals而不是==

之间进行比较

Downloaded.equals("Y");

第三，ANDROID.WIDGET.BUTTON{175F420 VFED..C.. ....I. 0,0-0,0#7F0C00083 APP:ID/READ是btn1

的字符串演示文稿

Answer 2

尝试将添加行更改为

    <asp:GridView Runat="server" id="gv1" PageSize="20" Visible="False" AllowPaging="True" Width="100%"
        CssClass="clsDataGrid" AutoGenerateColumns="false"  DataKeyNames="intProofSLNo,txtAdminRemarks" CommandArgument='Eval(intProofSLNo,txtAdminRemarks)' 
        OnRowCommand="gv1_RowCommand" OnRowDataBound ="gv1_OnRowDataBound" >
    <asp:BoundField DataField="intProofSLNo" ReadOnly="True" Visible="false" ItemStyle-Wrap="false" HeaderText="Sl No" ItemStyle-CssClass="clsNormalText"></asp:BoundField>

    <asp:TemplateField HeaderText="Action">
<ItemTemplate>

    <asp:LinkButton ID="lnkbtnApprove" runat="server" CommandName="Approve" Text= "Approve / " />
    <asp:LinkButton ID="lnkbtnReject" runat="server" CommandName="Reject" Text= "Reject" />
</ItemTemplate>
    </asp:TemplateField>


    <asp:TemplateField HeaderText="Admin Remarks">
<ItemTemplate>
    <asp:Label ID="lblAdminRemarks" runat="server" ItemStyle-Wrap="True" Text='<%# Bind("txtAdminRemarks")%>'></asp:Label>

</ItemTemplate>
<EditItemTemplate>

    <asp:TextBox ID="txtAdminRemarksEdit" runat="server" cssclass=clsCommonInput  MaxLength="252"   Text='<%# DataBinder.Eval(Container.DataItem, "txtAdminRemarks")%>'></asp:TextBox>

</EditItemTemplate>
    </asp:TemplateField>
    <asp:TemplateField HeaderText="Edit">
<ItemTemplate>
    <asp:LinkButton ID="lblEdit" runat="server" Text="Edit" ToolTip="Edit" CommandName="Edit" CommandArgument='<%# Container.DataItemIndex %>'>
    </asp:LinkButton>
</ItemTemplate>
<EditItemTemplate>
    <asp:LinkButton ID="lnkUpdate" Width="38" runat="server" Text="Update|" CommandName="Update"CommandArgument='<%# Container.DataItemIndex %>' CausesValidation="true" ToolTip="Save"> </asp:LinkButton>
   <asp:LinkButton ID="lnkCancel" runat="server" Width="40" Text="Cancel" CommandName="Cancel"
    CausesValidation="false" ToolTip="Reset"></asp:LinkButton>
                                                                            </EditItemTemplate>
                                                                        </asp:TemplateField>    
                                                            </Columns>
                                                        </asp:GridView>

按钮显示按钮的内部地址而不是setText文本

2 个答案: