如何在动态添加tablerow并且在tablerow中循环添加按钮

Question

package com.sxu.cs.tracelife;

import android.os.Bundle;
import android.app.ActionBar.LayoutParams;
import android.app.Activity;
import android.view.Gravity;
import android.view.Menu;
import android.widget.Button;
import android.widget.GridLayout;
import android.widget.TableLayout;
import android.widget.TableRow;

public class MainActivity extends Activity {

TableLayout tableLayout;

@Override
protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tableLayout = (TableLayout) findViewById(R.id.life_table);
for(int i = 0;i<30;i++){
TableRow tr = new TableRow(this);
tr.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
for(int j = 0;j<30;j++){
Button bn = new Button(this);
bn.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
bn.setText("1");
tr.addView(bn);
}
tableLayout.addView(tr);
}
}
}

请大神帮忙看一下这段代码哪出问题了，总是一个tablelayout 没有加进去tablerow

Answer 1

看着应该是LayoutParams乱了，你这里默认都是ActionBar.LayoutParams，那不对。
TableRow的LayoutParams应该是TableRow.LayoutParams

 bn.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
 像这行，应该
 bn.setLayoutParams(new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));


 tr.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
 需要 
 tr.setLayoutParams(new TableLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));