我正在为 Android 做一个应用程序，如果我单击“生成”按钮，它会生成一个列表，其中每一行都有一个图像、文本视图和 2 个按钮。列表的数量是随机的，超过 30 个。使用布局充气器，我想在 main.xml 布局中添加一个子视图。但是当我单击“生成”按钮时，会发生 Logcat 错误。
06-08 05:33:19.340: E/AndroidRuntime(853): java.lang.UnsupportedOperationException: addView(View) 在 AdapterView 中不受支持
我不明白什么是“AdapterView”以及如何解决这个错误。
这是我的代码。
package com.android.listtest1;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
public class ListTest1Activity extends Activity implements View.OnClickListener {
/** Called when the activity is first created. */
int[] images = new int[50];
TextView tv1, tv2;
Button btn_gen, btn_clear;
Button btn_phone, btn_sms;
ImageView img;
ArrayAdapter<String> list;
LinearLayout new_linear;
ListView listview;
Intent intent1;
int list_cnt = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
listview = (ListView)findViewById(R.id.listView1);
btn_gen = (Button)findViewById(R.id.btn_gen);
btn_clear = (Button)findViewById(R.id.btn_clear);
btn_gen.setOnClickListener(this);
btn_clear.setOnClickListener(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if( v == btn_gen){
int i, j, rand, cnt_rand;
for(i=0;i<50;i++){
images[i] = i;
}
images[0] = R.drawable.c1992_1;
images[1] = R.drawable.c1992_2;
images[2] = R.drawable.c1993;
images[3] = R.drawable.c1994;
images[4] = R.drawable.c1995_1;
images[5] = R.drawable.c1995_2;
images[6] = R.drawable.c1996_1;
images[7] = R.drawable.c1996_2;
images[8] = R.drawable.c1998;
images[9] = R.drawable.c2000;
images[10] = R.drawable.c2001;
images[11] = R.drawable.c2002;
images[12] = R.drawable.c2004;
images[13] = R.drawable.c2005;
images[14] = R.drawable.c2007_1;
images[15] = R.drawable.c2008;
images[16] = R.drawable.c2009_1;
images[17] = R.drawable.c2009_2;
images[18] = R.drawable.c2009_3;
images[19] = R.drawable.c2010_1;
images[20] = R.drawable.d2005_1;
images[21] = R.drawable.d2005_2;
images[22] = R.drawable.d2010_2;
images[23] = R.drawable.d2010_3;
images[24] = R.drawable.d2010_4;
images[25] = R.drawable.i01;
images[26] = R.drawable.i2010_1;
images[27] = R.drawable.alien_1;
images[28] = R.drawable.alien_2;
images[29] = R.drawable.balloon;
images[30] = R.drawable.bear;
images[31] = R.drawable.beaver;
images[32] = R.drawable.birthdaycake;
images[33] = R.drawable.chocolatecake;
images[34] = R.drawable.david;
images[35] = R.drawable.davinci;
images[36] = R.drawable.dragon;
images[37] = R.drawable.earth;
images[38] = R.drawable.fireworks1;
images[39] = R.drawable.fireworks2;
images[40] = R.drawable.fish;
images[41] = R.drawable.frog1;
images[42] = R.drawable.frog2;
images[43] = R.drawable.hand;
images[44] = R.drawable.leaf;
images[45] = R.drawable.monkey1;
images[46] = R.drawable.women;
images[47] = R.drawable.sun;
images[48] = R.drawable.rose;
images[49] = R.drawable.rabbit;
String str_name, str_desc;
LayoutInflater inflater = getLayoutInflater();
new_linear = (LinearLayout)inflater.inflate(R.layout.list, null);
img = (ImageView)new_linear.findViewById(R.id.img);
tv1 = (TextView)new_linear.findViewById(R.id.name);
tv2 = (TextView)new_linear.findViewById(R.id.desc);
str_name = tv1.getText().toString();
str_desc = tv2.getText().toString();
//List<Integer> list = new ArrayList<Integer>();
for(i = 0; i < 50; )
{
rand = ((int)(Math.random() * 50)) + 1;
cnt_rand = ((int)(Math.random() * 100)) + 30;
for(j = 0; j < cnt_rand; j++){
img.setImageResource(images[rand]);
tv1.setText(str_name+Integer.toString(j));
tv2.setText(str_desc+Integer.toString(j));
listview.addView(new_linear);
}
}
}else if( v == btn_clear){
}
}
}
这是 main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/list_info"
android:layout_width="180dp"
android:layout_height="wrap_content"
android:text="@string/list_info"
android:layout_gravity="center" android:textSize="20dp"/>
<ListView
android:id="@+id/listView1
android:layout_width="fill_parent"
android:layout_height="0dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<Button
android:id="@+id/btn_gen"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="@string/btn_gen"
android:layout_marginLeft="30dp"
android:layout_marginRight="20dp"/>
<Button
android:id="@+id/btn_clear"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="@string/btn_clear"
android:layout_marginLeft="20dp"/>
</LinearLayout>
</LinearLayout>
这是 add.xml 我要添加为列表的每一行的内容。
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<ImageView
android:id="@+id/img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/c1992_1" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/name"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginTop="30dp"
android:textSize="25dp"
android:text="11"
/>
<TextView
android:id="@+id/desc"
android:layout_width="120dp"
android:layout_height="wrap_content"
android:layout_marginTop="20dp"
android:textSize="20dp"
android:text="11"
/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<Button
android:id="@+id/btn_phone"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="@string/phone" android:layout_marginTop="25dp"/>
<Button
android:id="@+id/btn_sms"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:text="@string/sms" />
</LinearLayout>
</LinearLayout>
请详细解释一下，我能理解。（我是真正的第一个程序员）
感谢您提供的一切！