Question

您好我正在尝试将一些TableRows添加到TableLayout，TableLayout在xml文件中声明，TableRows仅在java代码中实例化。尽管有一些类似的问题，我无法在我的代码中使用它：

    import android.app.Activity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TableLayout;
    import android.widget.TableRow;
    import android.widget.TableRow.LayoutParams;

    public class MainActivity extends Activity {
    TableLayout tableLayout;
    Button[][] buttons =new Button[9][9];
    TableRow tableRow[]=new TableRow[9];
    TableRow.LayoutParams layoutParams=new TableRow.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    tableLayout = (TableLayout) findViewById(R.id.tablay);
    for(int line=0; line<9; line++){
        tableRow[line]=new TableRow(this);
        tableRow[line].setLayoutParams(layoutParams);
        tableRow[line].setVisibility(View.VISIBLE);
    }
    for(int line=0; line<9; line++){
        for(int col=0; col<9; col++){
            buttons[line][col]=new Button(this);
            buttons[line][col].setText(""+line+col);
            buttons[line][col].setLayoutParams(layoutParams);
            buttons[line][col].setVisibility(View.VISIBLE);
            tableRow[line].addView(buttons[line][col]);
        }
    }
    for(int i=0; i<9; i++){
        tableLayout.addView(tableRow[i], new TableLayout.LayoutParams(
                LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
}
setContentView(R.layout.activity_main);
}
}

应用程序总是在启动后立即终止，我看不出问题所在。谢谢你的帮助！

Answer 1

在super.onCreate（savedInstanceState）;

之后移动以下行

setContentView(R.layout.activity_main);

如何以编程方式将表行添加到表布局？

1 个答案: