Android 多选列表

原文：http://blog.csdn.net/wljun739/article/details/37655209

点击阅读原文

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1、activity_main.xml

[java] view plaincopy
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
    android:layout_width="fill_parent"  
    android:layout_height="fill_parent"  
    android:orientation="vertical">  
  
    <Button  
        android:id="@+id/button1"  
        android:layout_width="fill_parent"  
        android:layout_height="wrap_content"  
        android:text="多项选择列表框" />  
  
</LinearLayout>  

2、MainActivity.java类的实现

包

[java] view plaincopy
import java.util.ArrayList;  
  
import android.app.Activity;  
import android.app.AlertDialog;  
import android.content.DialogInterface;  
import android.os.Bundle;  
import android.view.View;  
import android.view.View.OnClickListener;  
import android.widget.Button;  
import android.widget.Toast;  

类的实现

[java] view plaincopy
public class MainActivity extends Activity {  
    private Button btn1;  
    ArrayList<Integer>MultiChoiceID = new ArrayList<Integer>();  
      
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
          
        final String [] nItems = {"item1","item2","item3","item4","item5","item6"};  
          
        btn1 = (Button) findViewById(R.id.button1);  
        btn1.setOnClickListener(new OnClickListener() {  
              
            @Override  
            public void onClick(View v) {  
                AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);  
                  
                MultiChoiceID.clear();  
                builder.setIcon(R.drawable.ic_launcher);  
                builder.setTitle("多项选择");  
                //  设置多选项  
                builder.setMultiChoiceItems(nItems,   
                        new boolean[]{false,false,false,false,false,false},  
                        new DialogInterface.OnMultiChoiceClickListener() {  
                      
                            @Override  
                            public void onClick(DialogInterface arg0, int arg1, boolean arg2) {  
                                // TODO Auto-generated method stub  
                                if (arg2) {  
                                    MultiChoiceID.add(arg1);  
                                    String tip = "你选择的ID为"+arg1+",值为"+nItems[arg1];  
                                    Toast toast = Toast.makeText(getApplicationContext(), tip, Toast.LENGTH_SHORT);  
                                    toast.show();  
                                }  
                                else {  
                                    MultiChoiceID.remove(arg1);  
这个代码有问题，会报java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
因为remove(int index)，当int类型的生活，remove不是对象是索引对应的值了。
                                }  
                            }  
                });  
                //  设置确定按钮  
                builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {  
                      
                    @Override  
                    public void onClick(DialogInterface arg0, int arg1) {  
                        // TODO Auto-generated method stub  
                        String str = "";  
                        int size = MultiChoiceID.size();  
                        for(int i = 0; i < size; i++) {  
                            str += (nItems[MultiChoiceID.get(i)]+",");  
                        }  
                        Toast toast = Toast.makeText(getApplicationContext(), "你选择了"+str, Toast.LENGTH_LONG);  
                        toast.show();  
                    }  
                });  
                //  设置取消按钮  
                builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {  
                      
                    @Override  
                    public void onClick(DialogInterface arg0, int arg1) {  
                        // TODO Auto-generated method stub  
                          
                    }  
                });  
                  
                builder.create().show();  
            }             
        });  
    }  
}  