Android之旅第五站——单选和多选对话框dialog …

其实dialog大多都差不多的，这里单选和多选一块说：

先看单选效果图：

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;

@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);

    }

public void myclick(View v)
    {
        AlertDialog.Builder builder = new Builder(this);
        builder.setIcon(R.drawable.ic_launcher);
        builder.setTitle("提示啊~");
final String []datas={"男","女"};
        builder.setSingleChoiceItems(datas, 0, new OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub


                Toast.makeText(MainActivity.this, "你选择了"+datas[which], 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);
    }
}

里面setSingleChoiceItems中第一个参数是字符串数组的选项，第二个是默认选择第几个，第三个设置监听。

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="com.example.dialog1.MainActivity" >

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



</RelativeLayout>

再来看多选的对话框效果图（为了方便，在同一个项目中添加了一个按钮）：

不废话，附代码：

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.content.DialogInterface.OnMultiChoiceClickListener;
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, bt1;

@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);
        bt1 = (Button) findViewById(R.id.bt1);
    }

public void myclick(View v) {
        AlertDialog.Builder builder = new Builder(this);
        builder.setIcon(R.drawable.ic_launcher);
        builder.setTitle("提示啊~");
final String[] datas = { "男", "女" };
        builder.setSingleChoiceItems(datas, 0, new OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub

                Toast.makeText(MainActivity.this, "你选择了" + datas[which], 1000).show();
                ;
            }
        });
        builder.show();
    }
-------------------------多选的监听事件------------------------------

public void myclick1(View v) {
        AlertDialog.Builder builder = new Builder(this);
        builder.setIcon(R.drawable.ic_launcher);
        builder.setTitle("又一个提示：");
final String datas[] = { "吃饭", "睡觉", "打豆豆" };
        builder.setMultiChoiceItems(datas, new boolean[] { false, false, false }, new OnMultiChoiceClickListener() {

@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
// TODO Auto-generated method stub
if (isChecked) {
                    Toast.makeText(MainActivity.this, "选择了" + datas[which], 500).show();
                    ;
                } else {
                    Toast.makeText(MainActivity.this, "取消了" + datas[which], 500).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);
    }
}

builder.setMultiChoiceItems(items, checkedItems, listener)

第一个仍然是字符串数组，第二个是boolean数组，true为选择，false为不选，第三个是监听。

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="com.example.dialog1.MainActivity" >

<Button 
android:id="@+id/bt"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Danxuan"
android:onClick="myclick"
 />
<Button 
android:id="@+id/bt1"
android:layout_alignParentRight="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Duoxuan"
android:onClick="myclick1"
 />


</RelativeLayout>