由于java.lang.UnsupportedOperationException,App崩溃启动:AdapterView不支持addView(View,LayoutParams)

时间:2011-01-04 01:04:21

标签: android android-adapterview

每次在模拟器中启动时,我的应用都会崩溃。这是logcat:

01-02 17:20:58.859: ERROR/AndroidRuntime(249): Uncaught handler: thread main exiting due to uncaught exception

01-02 17:20:58.889: ERROR/AndroidRuntime(249): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.shoppinglist/com.shoppinglist.ShoppingList}: java.lang.UnsupportedOperationException: addView(View, LayoutParams) is not supported in AdapterView

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2401)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.app.ActivityThread.access$2100(ActivityThread.java:116)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1794)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.os.Handler.dispatchMessage(Handler.java:99)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.os.Looper.loop(Looper.java:123)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at android.app.ActivityThread.main(ActivityThread.java:4203)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at java.lang.reflect.Method.invokeNative(Native Method)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at java.lang.reflect.Method.invoke(Method.java:521)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)

01-02 17:20:58.889: ERROR/AndroidRuntime(249):     at dalvik.system.NativeStart.main(Native Method)**

这是我的.java文件:

package com.shoppinglist;

import android.app.ListActivity;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class ShoppingList extends ListActivity {
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    Button button1main = (Button) findViewById(R.id.Button01main);
     button1main.setOnClickListener(new OnClickListener()  {
     @Override
      public void onClick(View v)  {
       final Dialog dialog = new Dialog(ShoppingList.this);
       dialog.setContentView(R.layout.maindialog);
       dialog.setCancelable(true);
       Button button = (Button) dialog.findViewById(R.id.cancel);
       button.setOnClickListener(new OnClickListener()  {
        @Override
         public void onClick(View v)  {
          dialog.dismiss();
        }
        });
       dialog.show();
       }
     });
    }
}

我的layout.xml:

<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#FFCC00"
    android:padding="10dp"
    android:id="@+id/listview">
        <Button
            android:id="@+id/Button01main"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
   android:text="Add item..."/>
</ListView> 

我的对话框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:id="@+id/layout_root"
  android:orientation="vertical"
  android:background="#FFFFFF"
  android:minHeight="100dp"
  android:minWidth="300dp">
  <EditText
    android:id="@+id/edittext"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content"
     android:hint="Type the name of an item here...">
   </EditText>
 <LinearLayout
  android:id="@+id/button_layout"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
  android:orientation="horizontal"
  android:layout_gravity="right">
  <Button
   android:id="@+id/ok"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="OK"
   android:layout_gravity="bottom">
   </Button>
  <Button
   android:id="@+id/cancel"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="Cancel"
   android:layout_gravity="bottom">
   </Button>
  </LinearLayout> 
</LinearLayout>

任何帮助将不胜感激。我需要代码示例来修复,我不是很有经验。

1 个答案:

答案 0 :(得分:3)

在你的布局xml中,你试图在ListView中添加一个按钮。 ListView是一个AdapterView,正如错误所示,所以它必须由一个适配器填充,该适配器提供类似“事物”的列表 - 这些可以是字符串列表(来自数组列表)或自定义视图列表创建,但它们基本上都是相同类型的东西 - 你不能,例如,添加一个按钮,然后另一个添加一个字符串。创建一个适配器,在ListView中提供所需的东西。