创建dialog需要用到AlertDialog.Builder类,这可以理解为一个对话框的产生器，可以利用这个类创建各种种类的对话框。对话框创建好之后调用此类的create方法即可产生一个对话框，再调用show方法就可以将对话框显示到界面上。
如果对话框用来展示一个进度，可以使用ProgressDialog类来完成（不建议使用，应该用ProgressBar代替）。另外还有两类对话框一个叫DatePickerDialog另一个是TimePickerDialog分别用来选择日期和时间。
除此之外，对话框可以使用DialogFrgament类来包装，但是为了兼容性需要导入v4的包。具体可以看文档。
下面以代码片段的方式总结了一些常用的dialog的使用：
1.最基本的dialog:
显示效果：
代码片段：
public void show_alert()
{
AlertDialog.Builder builder = new Builder(this);
builder.setMessage("是否更新");
builder.setIcon(R.drawable.ic_launcher);
builder.setTitle("提醒");
builder.setPositiveButton("确定",new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
Toast.makeText(MainActivity.this,"点击了确定按钮",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消",new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
// dialog.dismiss();
}
});
builder.show();
}
2.带一个列表的对话框：
（1）.列表数据静态指定（放到数组中）：
显示效果：
代码片段：
private void show_list()
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("职业");
builder.setItems(new String[]{"程序员","工程师","砖家"},new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
Toast.makeText(MainActivity.this,"点击了"+which,Toast.LENGTH_SHORT).show();
}
});
builder.show();
}
（ 2）.列表数据通过适配器指定
显示效果：
代码片段：
public void show_dialog()
{
/* 这里的数据可以从数据库/网络中动态获取 */
List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();
Map<String, Object> map1 = new HashMap<String, Object>();
map1.put("image", R.drawable.image1);
map1.put("text", "我是条目1");
Map<String, Object> map2 = new HashMap<String, Object>();
map2.put("image", R.drawable.image2);
map2.put("text", "我是条目2");
Map<String, Object> map3 = new HashMap<String, Object>();
map3.put("image", R.drawable.image3);
map3.put("text", "我是条目3");
data.add(map1);
data.add(map2);
data.add(map3);
SimpleAdapter adapter = new SimpleAdapter(this, data,
R.layout.list_item, new String[]
{ "image", "text" }, new int[]
{ R.id.iv_show, R.id.tv_text });
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("从适配器中获取的数据");
builder.setAdapter(adapter, new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
Toast.makeText(MainActivity.this, "点击了" + which, 0).show();
}
});
builder.show();
}
3.单选列表对话框
显示效果：
代码片段：
public void show_single()
{
AlertDialog.Builder builder = new Builder(this);
builder.setIcon(R.drawable.ic_launcher);
builder.setTitle("提醒");
builder.setSingleChoiceItems(new String[]{"条目1","条目2","条目3"},0,new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)//id从0开始
{
Toast.makeText(MainActivity.this,"item="+which,Toast.LENGTH_SHORT).show();
dialog.dismiss();
}
});
builder.setNegativeButton("取消",new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
}
});
builder.show();
}
4.多选列表对话框：
显示效果：
代码片段：
public void show_multiple()
{
AlertDialog.Builder builder = new Builder(this);
builder.setIcon(R.drawable.ic_launcher);
builder.setTitle("提醒");
builder.setMultiChoiceItems(new String[]{"条目1","条目2","条目3","条目4"}, null, new DialogInterface.OnMultiChoiceClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked)
{
Toast.makeText(MainActivity.this,"item"+which+","+isChecked,Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消",new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
}
});
builder.show();
}
5.自定义对话框：
显示效果：
代码片段：
private void show_own_dialog()
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
LayoutInflater inflater = this.getLayoutInflater();//"充气筒"
builder.setView(inflater.inflate(R.layout.dialog, null))
.setPositiveButton("登陆",
new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int id)
{
Toast.makeText(MainActivity.this, "确定", 0).show();
}
})
.setNegativeButton("取消",
new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int id)
{
Toast.makeText(MainActivity.this,"取消", 0).show();
}
});
builder.show();
}
6.带进度条的dialog
显示效果：
代码片段：
public void show_circle_progressdialog()
{
ProgressDialog diaolog = new ProgressDialog(this);
diaolog.setIcon(R.drawable.ic_launcher);
diaolog.setTitle("提醒");
diaolog.setMessage("正在加载");
diaolog.show();
}
还有水平进度条：
显示效果：
代码片段：
public void show_horizonal()
{
final ProgressDialog diaolog = new ProgressDialog(this);
diaolog.setIcon(R.drawable.ic_launcher);
diaolog.setTitle("提醒");
diaolog.setMessage("正在加载");
diaolog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
diaolog.setMax(100);
new Thread(new Runnable()
{
@Override
public void run()
{
for(int i = 0; i<=100; i++)
{
diaolog.setProgress(i);
try
{
Thread.sleep(30);
} catch (InterruptedException e)
{
e.printStackTrace();
}
}
diaolog.dismiss();
}
}).start();
diaolog.show();
}
7.日期选择与时间选择对话框：
显示效果：
代码片段：
布局：
<LinearLayout 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:orientation="vertical"
tools:context=".MainActivity" >
<DatePicker
android:id="@+id/dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
<TimePicker
android:id="@+id/tp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
</LinearLayout>
activity：
package com.example.dialogdemo4;
import android.app.Activity;
import android.os.Bundle;
import android.widget.DatePicker;
import android.widget.Toast;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;
public class MainActivity extends Activity
{
private DatePicker dp = null;
private TimePicker tp = null;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
dp = (DatePicker) findViewById(R.id.dp);
tp = (TimePicker) findViewById(R.id.tp);
dp.init(2014, 1, 1, new OnDateChangedListener()
{
@Override
public void onDateChanged(DatePicker view, int year, int monthOfYear,
int dayOfMonth)
{
Toast.makeText(MainActivity.this,"monthOfYear"+monthOfYear+",dayOfMonth"+dayOfMonth, 0).show();
}
});
tp.setIs24HourView(true);
tp.setOnTimeChangedListener(new OnTimeChangedListener()
{
@Override
public void onTimeChanged(TimePicker view, int hourOfDay, int minute)
{
Toast.makeText(MainActivity.this,"hourOfDay"+hourOfDay+",minute"+minute, 0).show();
}
});
}
}
--------------------------------------------------------完--------------------------------------------------------
转载请注明出处，谢谢！
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