Java 如何在tablerow中以编程方式设置textview的边距

嗨。。。。我正在做一个关于eclipse的项目。在本项目中，我制作了如下xml布局：

 <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="match_parent"
        android:layout_height="match_parent"    
        tools:context=".AddRemoveMainActivity" >
    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:id="@+id/main_layout"
        >

        <!-- I will add some view programatically in this line -->

        <TableRow
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" >

        <Button 
            android:id="@+id/b_add"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="Add"
             android:onClick="addItems"
            /> 
            <Button 
            android:id="@+id/b_del"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="Del"
             android:onClick="deleteItems"
            />     
        </TableRow>
    </LinearLayout>    
    </ScrollView>

但这一个不是工作。。。我尝试过另一种方法，但也不管用：

//ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams)jenis.getLayoutParams();
            //mlp.setMargins(37, 13, 17, 0);

那么，有没有给我的文本视图添加边距的想法或其他方法。。。？？？

---

提前感谢…：-）

请添加此方法并检查。它对我有用

public static void setRunTimeMargin(View v, int left, int top, int right,
                                        int bottom) {

        ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) v
                .getLayoutParams();

        mlp.setMargins(left, top, right, bottom);
    }

---

请添加此方法并检查。它对我有用

public static void setRunTimeMargin(View v, int left, int top, int right,
                                        int bottom) {

        ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) v
                .getLayoutParams();

        mlp.setMargins(left, top, right, bottom);
    }

---

试试下面的代码，让我知道它是否有效

android.widget.TableRow.LayoutParams layoutParams = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,TableRow.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(0, 13, 17, 9);
    row1.addView(jenis, layoutParams);
    //ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams)jenis.getLayoutParams();
    //mlp.setMargins(37, 13, 17, 0);


    row1.addView(spin, layoutParams);

---

试试下面的代码，让我知道它是否有效

android.widget.TableRow.LayoutParams layoutParams = new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT,TableRow.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(0, 13, 17, 9);
    row1.addView(jenis, layoutParams);
    //ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams)jenis.getLayoutParams();
    //mlp.setMargins(37, 13, 17, 0);


    row1.addView(spin, layoutParams);

这是有效的：

public static void setRunTimeMargin(View v, int left, int top, int right,
                                    int bottom) {

    ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) v
            .getLayoutParams();

    mlp.setMargins(left, top, right, bottom);
// NJ forgot the last important step, set LayoutParams on the TextView:
    v.setLayoutParams(mlp);

}

这是有效的：

public static void setRunTimeMargin(View v, int left, int top, int right,
                                    int bottom) {

    ViewGroup.MarginLayoutParams mlp = (ViewGroup.MarginLayoutParams) v
            .getLayoutParams();

    mlp.setMargins(left, top, right, bottom);
// NJ forgot the last important step, set LayoutParams on the TextView:
    v.setLayoutParams(mlp);

}

---

这个对我来说很好。。谢谢多拉…：-）我刚意识到我在使用LinearLayout.LayoutParams。。。所以只需将其更改为TableRow.LayoutParams…；-）谢谢……这个对我来说很好用。。谢谢多拉…：-）我刚意识到我在使用LinearLayout.LayoutParams。。。所以只需将其更改为TableRow.LayoutParams…；-）感谢…使用mlp.setMargin（左、上、右、下）时出现异常…eclipse说这是空指针异常。。。。但是谢谢你的回答，尼莱什先生…：-）使用mlp.setMargin（左、上、右、下）时出现异常…eclipse说这是空指针异常。。。。但是谢谢你的回答，尼莱什先生…：-）我把我所有的源代码都放在这里：我把我所有的源代码都放在这里：