AlertDialog对话框

 对话框vAndroid提供了四种常用对话框：

 

™AlertDialog：功能最丰富，应用最广的对话框

™ProgressDialog：进度对话框

™DatePickerDialog：日期选择对话框

™TimePickerDialog：时间选择对话框

 

 创建步骤：

1.创建Builder

2.设置信息，标题，添加按钮...

.setTitle("");

.setMessage("");

.builder.setPositiveButton("Title",onClickListener());

3.调用builder.create().show();

   或者使用showDialog(int);调用，并且重写onCreateDialog方法，onCreateDialog方法里面建立builder

 

 

 

这句话可以添加风格化格式，浮于所有界面上

<activity  android:theme="@android:style/Theme.Dialog">

下面是普通的dialog：

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/alert_txt"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:hint="这个是alert测试"/>
    <Button
        android:id="@+id/alert_btn"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="点我试试"/>
</LinearLayout>

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.View;
import android.widget.Button;
import android.widget.TextView;

public class Alertdialog extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.alertdialog);
        Button bn = (Button)findViewById(R.id.alert_btn);
        //定义一个AlertDialog.Builder对象
        final Builder builder = new AlertDialog.Builder(this);
        //为按钮绑定事件监听器
        bn.setOnClickListener(new View.OnClickListener()
        {
            public void onClick(View source)
            {
                // 设置对话框的图标
                builder.setIcon(R.drawable.tools);
                // 设置对话框的标题
                builder.setTitle("自定义普通对话框");
                // 设置对话框显示的内容
                builder.setMessage("一个简单的提示对话框");
                // 为对话框设置一个“确定”按钮
                builder.setPositiveButton("确定"
                    //为列表项的单击事件设置监听器
                    , new OnClickListener()
                    {
                        public void onClick(DialogInterface dialog, int which)
                        {
                            TextView show = (TextView) findViewById(R.id.alert_txt);
                            // 设置EditText内容
                            show.setText("用户单击了“确定”按钮！");
                        }
                    });
                // 为对话框设置一个“取消”按钮
                builder.setNegativeButton("取消" ,  new OnClickListener()
                    {
                        public void onClick(DialogInterface dialog, int which)
                        {
                            TextView show = (TextView) findViewById(R.id.alert_txt);
                            // 设置EditText内容
                            show.setText("用户单击了“取消”按钮！");
                        }
                    });
                //创建、并显示对话框
                builder.create().show();
            }
        });
    }
}

 

 

 

DatePickerDialog:与TimePickerDialog用法一样

 

import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;

public class Alertdialog_datepicker extends Activity{
    Calendar calendar=Calendar.getInstance();
    TextView textView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.alertdialog_datepick);

        textView=(TextView) findViewById(R.id.datepicker_txt);
        textView.setText("当前时间为："+calendar.get(Calendar.YEAR)+"年"+calendar.get(Calendar.MONTH)+"月"+calendar.get(Calendar.DAY_OF_MONTH)+"日");

        Button btn=(Button) findViewById(R.id.datepicker_btn);

//******************************设置时间对话框******************************************//
        btn.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                showDialog(111);
//              new DatePickerDialog(Alertdialog_datepicker.this,
//                  new DatePickerDialog.OnDateSetListener() {
//                      @Override
//                      public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {
//                          textView.setText("当前时间为："+year+"年"+monthOfYear+"月"+dayOfMonth+"日");
//                      }
//              }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH)).show();
            }
        });

    }
    @Override
    protected Dialog onCreateDialog(int id, Bundle args) {
        return new DatePickerDialog(Alertdialog_datepicker.this,
                new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker view, int year, int monthOfYear,
                            int dayOfMonth) {
                        textView.setText("当前时间为："+year+"年"+monthOfYear+"月"+dayOfMonth+"日");
                    }
        }, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));
    }


}

 

ProgressDialog：进度条对话框

 

import java.util.Calendar;
import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class Alertdialog_progress extends Activity{
    Calendar calendar=Calendar.getInstance();
    ProgressDialog pd;
    int status=0;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.alertdialog_progress);

        Button btn=(Button) findViewById(R.id.progress_btn);

//************************************************************************************//
        btn.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                showDialog(111);
                //新建一个线程，执行进度递增
                new Thread(){
                    @Override
                    public void run() {
                        doprogress();
                    }
                }.start();
            }
        });

    }
    @Override
    protected Dialog onCreateDialog(int id, Bundle args) {
        pd=new ProgressDialog(this);
        pd.setMax(100);
        // 设置对话框的标题
        pd.setTitle("任务完成百分比");
        // 设置对话框 显示的内容
        pd.setMessage("耗时任务的完成百分比");
        // 设置对话框不能用“取消”按钮关闭
        pd.setCancelable(false);
        // 设置对话框的进度条风格
//      pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        // 设置对话框的进度条是否显示进度
        pd.setIndeterminate(false);

        return pd;
    }
    //增加进度条进度
    private void doprogress(){
        //当进度小于100的时候，每100毫秒增加1
        while (pd.getProgress()<100) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            status++;
            pd.setProgress(status);
        }
        //进度要100的时候隐藏进度条，并且进度归零
        if (pd.getProgress()>=100) {
            pd.dismiss();
            status=0;
            pd.setProgress(status);
        }

    }


}

 

下面还有一些列表，单选，多选对话框：

 

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.View;
import android.widget.Button;
import android.widget.TextView;

public class Alertdialog_item extends Activity{

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

        final TextView textView=(TextView) findViewById(R.id.alert_item_txt);
        Button btn=(Button) findViewById(R.id.alert_item_btn);
        Button btn2=(Button) findViewById(R.id.alert_item_btn2);
        Button btn3=(Button) findViewById(R.id.alert_item_btn3);

//******************************列表对话框******************************************//
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final String[] str=new String[]{"第一个选择框","第二个选择框","第三个选择框"};
                //创建选择对话框
                Builder builder=new AlertDialog.Builder(Alertdialog_item.this);
                builder.setIcon(R.drawable.tools);
                builder.setTitle("列表对话框");
                builder.setPositiveButton("ok", null);
                builder.setItems(str,new OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        textView.setText(str[which]);
                    }
                });
                builder.create().show();
            }
        });

//******************************单选对话框******************************************//
        btn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final String[] str=new String[]{"第四个选择框","第五个选择框","第六个选择框"};
                final boolean[] res=new boolean[]{false,false,false};
                //创建对话框
                Builder builder=new AlertDialog.Builder(Alertdialog_item.this);
                builder.setIcon(R.drawable.tools);
                builder.setTitle("单选对话框");
                builder.setSingleChoiceItems(str,0, new OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        textView.setText(str[which]);
                    }
                });
                builder.setPositiveButton("ok", null);
                builder.create().show();
            }
        });

//******************************多选对话框******************************************//
        btn3.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                final String[] str=new String[]{"第七个选择框","第八个选择框","第九个选择框"};
                final boolean[] res=new boolean[]{false,false,false};
                //创建对话框
                Builder builder=new AlertDialog.Builder(Alertdialog_item.this);
                builder.setIcon(R.drawable.tools);
                builder.setTitle("多选对话框");
                builder.setMultiChoiceItems(str,
                        res,new OnMultiChoiceClickListener() {
                            @Override
                            public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                                String str2="";
                                for (int i = 0; i < str.length; i++) {
                                    if (res[i]) {
                                        str2+=str[i]+" ";
                                    }
                                }

                                textView.setText(str2);

                            }
                        });
                builder.setPositiveButton("ok", null);
                builder.create().show();
            }
        });


    }

}

还有自定义对话框：定义了一个列表式的dialog

 

 

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.SimpleAdapter;

public class Alertdialog_defined extends Activity{

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

        Button btn=(Button) findViewById(R.id.defined_btn);

//******************************自定义话框******************************************//
        btn.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                int[] ic=new int[]{R.drawable.i1,R.drawable.i2,R.drawable.i3,R.drawable.i4};
                List<Map<String, Object>> list=new ArrayList<Map<String,Object>>();

                for (int i = 0; i <4; i++) {
                    Map<String, Object> map=new HashMap<String, Object>();
                    map.put("image", ic[i]);
                    map.put("txt", ic[i]);
                    list.add(map);
                }
                //创建SimpleAdapter
                SimpleAdapter simpleAdapter=new SimpleAdapter(Alertdialog_defined.this, list,R.layout.alertdialog_defined2 ,new String[]{"image","txt"},new int[]{R.id.defined_image,R.id.defined_txt});
                Builder builder=new AlertDialog.Builder(Alertdialog_defined.this);
                //设置标题头
                builder.setTitle("自定义对话框");
                //添加带图片列表，不做任何动作
                builder.setAdapter(simpleAdapter,new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {

                    }
                });
                //添加按钮，点击对话框消失，没有任何事件
                builder.setPositiveButton("ok", null);
                builder.create().show();
            }
        });
//******************************************************************************************//
//或者重写onCreateDialog方法，return一个Dialog类型builder.create()
//用showDialog(int);调用
        /*btn.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View v) {
                showDialog(111);
            }
        });

    }
    @Override
    protected Dialog onCreateDialog(int id, Bundle args) {
        int[] ic=new int[]{R.drawable.i1,R.drawable.i2,R.drawable.i3,R.drawable.i4};
        List<Map<String, Object>> list=new ArrayList<Map<String,Object>>();

        for (int i = 0; i <4; i++) {
            Map<String, Object> map=new HashMap<String, Object>();
            map.put("image", ic[i]);
            map.put("txt", ic[i]);
            list.add(map);
        }
        SimpleAdapter simpleAdapter=new SimpleAdapter(Alertdialog_defined.this, list,R.layout.alertdialog_defined2 ,new String[]{"image","txt"},new int[]{R.id.defined_image,R.id.defined_txt});
        Builder builder=new AlertDialog.Builder(Alertdialog_defined.this);
        builder.setTitle("自定义对话框");
        builder.setAdapter(simpleAdapter,new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        builder.setPositiveButton("ok", null);
        return builder.create();
    }*/
}
}

 

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