0

请看下面的代码

activity_main.xml

<RelativeLayout 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TableLayout 
        android:id="@+id/gameBoard"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"

        ></TableLayout>

</RelativeLayout>

游戏按钮.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/buttonLayout" >

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="34dp"
        android:layout_marginTop="18dp"
        android:text="Button" />

</RelativeLayout>

MainActivity.java

package com.ace.ticktacktoe;

import android.os.Bundle;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.widget.Button;
import android.widget.GridView;
import android.widget.RelativeLayout;
import android.widget.TableLayout;
import android.widget.TableRow;

public class MainActivity extends Activity {

    private LayoutInflater inflater;
    private TableLayout gameBoard;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        createUI();
        //Create the user interface
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    private void createUI()
    {
        gameBoard = (TableLayout)findViewById(R.id.gameBoard);

        inflater = getLayoutInflater();
        RelativeLayout layout = (RelativeLayout)inflater.inflate(R.layout.game_buttons, null);



        //Add the buttons
        TableRow tableRow = new TableRow(this);

        Button btn = (Button)layout.findViewById(R.id.button1);
        ((RelativeLayout)btn.getParent()).removeView(btn);
        tableRow.addView(btn);

        gameBoard.addView(tableRow);
    }

}

当我运行此代码时，应显示添加的按钮。但是，我的显示器完全是空白的。我在这里做错了什么？

4

2 回答 2

1 
((RelativeLayout)btn.getParent()).removeView(btn);
tableRow.addView(btn);

改成

tableRow.addView(layout);

或更改game_buttons.xml为仅包含不带布局的按钮，并使用充气器创建不带布局的按钮。

于 2013-10-01T04:22:24.203 回答
-1

尝试将您的 Button 移至 activity_main.xml：

<RelativeLayout 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <TableLayout 
        android:id="@+id/gameBoard"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"

        ></TableLayout>
    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="34dp"
        android:layout_marginTop="18dp"
        android:text="Button" />

</RelativeLayout>
于 2013-09-30T17:29:18.897 回答