1）扩展GridLayouts上的标志应该有问题。 View中的两个GridLayout都应具有垂直和水平轴的权重。尝试为上面的第一个View和第二个final GridLayout.LayoutParams params = new GridLayout.LayoutParams(GridLayout.spec( GridLayout.UNDEFINED,GridLayout.FILL,1f),GridLayout.spec(GridLayout.UNDEFINED,1f)); 设置此参数。

View

2）作为一种替代且简单的解决方案，您可以用单个LinearLayout容器替换上面的两个 <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:nestedScrollingEnabled="true" android:orientation="horizontal"> <LinearLayout android:id="@+id/view.line.1" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="horizontal"> <TextView] android:layout_width="wrap_content" android:layout_height="wrap_content"> </TextView> </LinearLayout> <LinearLayout android:id="@+id/view.line.2" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="horizontal"> <TextView] android:layout_width="wrap_content" android:layout_height="wrap_content"> </TextView> </LinearLayout> <LinearLayout> 容器，这可以自己处理重量。这样的事情。

z-index

我在您之前的代码中做了一些修改，并添加了width = 0属性，可以达到您想要的显示效果

 override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
//        setContentView(R.layout.activity_main)


//        val diffLayout = findViewById<LinearLayout>(R.id.difference_table)
//        val diffTable = findViewById<GridLayout>(R.id.grid_layout);
        var diffTable: GridLayout = GridLayout(this)

// Set the dimensions of the grid
        diffTable.layoutParams =
                ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT)

        diffTable.columnCount = 3
        diffTable.rowCount = 1

// Create the three columns and add them to the grid
        var lineNumber: TextView = TextView(this)
        lineNumber.text = "asdf"
        lineNumber.setTextColor(Color.parseColor("#000000"))
        lineNumber.gravity = Gravity.LEFT

        var currentLine1: TextView = TextView(this)
        currentLine1.setTextColor(Color.parseColor("#000000"))
        currentLine1.text = "asdfasdfasdfadfasdfadfasdfasdfasdfasdfasdfasdf"
        lineNumber.gravity = Gravity.CENTER

// 3. Create the TextView representing the current line in Text 2
        var currentLine2: TextView = TextView(this)
        currentLine2.setTextColor(Color.parseColor("#000000"))
        currentLine2.text = "asdfasdfasdfadfasdfadfasdfasdfasdfasdfasdfasdf"
        lineNumber.gravity = Gravity.CENTER

        var layoutParams = GridLayout.LayoutParams()
        layoutParams.rowSpec = GridLayout.spec(0,GridLayout.FILL)
        layoutParams.columnSpec = GridLayout.spec(0,GridLayout.FILL)

// TODO: ENABLE LAYOUT WEIGHT FOR API < 21
        diffTable.addView(lineNumber,layoutParams)

        var layoutParams1 = GridLayout.LayoutParams()
        layoutParams1.rowSpec = GridLayout.spec(0,GridLayout.FILL)
        layoutParams1.columnSpec = GridLayout.spec(1,1f)
        layoutParams1.width = 0

// Add the current line in Text 1 to the table
        diffTable.addView(currentLine1,layoutParams1)

// Add the current line in Text 2 to the tableLEFT


        var layoutParams2 = GridLayout.LayoutParams()
        layoutParams2.rowSpec = GridLayout.spec(0,GridLayout.FILL)
        layoutParams2.columnSpec = GridLayout.spec(2,1f)
        layoutParams2.width = 0

        diffTable.addView(currentLine2,layoutParams2)


        addContentView(diffTable,ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,ViewGroup.LayoutParams.WRAP_CONTENT))

    }

我的建议是动态设置视图的列宽。最后，它将使每个视图与所需的空间对齐。

var diffTable: GridLayout = GridLayout(this)
            diffTable.setAlignmentMode(GridLayout.ALIGN_BOUNDS);
            diffTable.setColumnCount(3);
            diffTable.setRowCount(1);
            TextView lineNumber;
            for (int i = 0; facilities != null && i < facilities.size(); i++) {
                lineNumber = new TextView(getContext());
                lineNumber.setText(facilities.get(i));
                diffTable.addView(lineNumber,i);
                lineNumber.setCompoundDrawablesWithIntrinsicBounds(rightIc,0);
                GridLayout.LayoutParams param =new GridLayout.LayoutParams();
                param.height = LayoutParams.WRAP_CONTENT;
                param.width = LayoutParams.WRAP_CONTENT;
                param.rightMargin = 5;
                param.topMargin = 5;
                param.setGravity(Gravity.CENTER);
                param.columnSpec = GridLayout.spec(c);
                param.rowSpec = GridLayout.spec(r);
                lineNumber.setLayoutParams (param);

} 

c代表“列索引”，r代表GridLayout的行索引。

注意：如果您要插入参数，则上面的代码可能需要做一些更改。