Android之旅第五站——ListView对话框dialog …

实现ListView做的对话框dialog。

看效果图：

这里用ArrayAdapter简单点作了adapter填充内容。当然，你想用哪个adapter都可以，simpleadapter，自定义adapter等。

先附上代码：

Mainactivity：

package com.example.dialog1;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity {
private Button bt;
private ArrayAdapter<String> adapter;
private String[] datas={"1","2","3","4","5"};

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initViews();

    }



private void initViews() {
// TODO Auto-generated method stub
        bt = (Button) findViewById(R.id.bt);
        adapter=new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, datas);

    }

public void myclick(View v)
    {
        AlertDialog.Builder builder = new Builder(this);
        builder.setIcon(R.drawable.ic_launcher);
        builder.setTitle("提示：");
        builder.setAdapter(adapter, new OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
                Toast.makeText(MainActivity.this, "你点击了第"+which+"个item", 1000).show();;
            }
        });
        builder.show();
    }
@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;
    }

@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
        }
return super.onOptionsItemSelected(item);
    }
}

这里设置了监听事件，当我们点击第一个item看看效果：

很明显，item都是从0开始的，用toast来显示消息。

监听事件在activity_main的xml中声明了（myclick）：

<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="com.example.dialog1.MainActivity" >

    <Button 
       android:id="@+id/bt"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="ListView"
       android:onClick="myclick"
        />



</RelativeLayout>