Dialog的各种使用方式

标签：dialog   edittext   

今天学习了Dialog组件，并且将Dialog做了一下总结，下面是总结的内容和Demo

AlertDialog：功能最丰富、实际应用最广的对话框
ProgressDialog：进度对话框，
DatePickerDialog：日期选择对话框
TimePickerDialog：时间选择对话框


AlertDialog提供了四种预定义对话框
》带消息、带N个按钮的提示对话框
》带列表、带N个按钮的列表对话框
》带多个单选列表项，带N个按钮的对话框
》带多个多选列表项，带N个按钮的对话框
除此之外，可创建界面自定义的对话框
创建对话框的过程：
1、定义一个Alertdialog.Builder对象
2、
//设置图标
setIcon(),
//设置标题
setTitle(),
//设置显示内容
setMessage()
//设置确定按钮
setPositiveButton
//设置取消按钮
setNegativeButton
//创建装饰性按钮
setNeutralButton(CharSequence text,DialogInterface.OnClickListener listener);
//创建显示对话框
create().show()
实现一个多种对话框集锦。包括（列表对话框，单选列表对话框，多选对话框，自定义对话框）点击相应的按钮出来相应的对话框。
步骤
1、定义xml文件，完成button布局。
2、重写Activity中的onCreateDialog方法，返回Dialog对象。调用showDialog方法便可以显示对话框。

MainActivity.java

package lzl.edu.com.dialogdemos;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TableLayout;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity implements View.OnClickListener{

    public static final int LISTDIALOG = 1;
    public static final int SINGLEDIALOG = 2;
    public static final int MULTIDIALOG = 3;
    public static final int LOGINDIALOG = 4;
    TextView mtextView;
    AlertDialog.Builder builder ;
    Button listDialog,singleDialog,multiDialog,loginDialog;
    EditText mEditText,userName,password;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
    }
    void init(){
        listDialog = (Button)findViewById(R.id.listdialog);
        singleDialog=(Button)findViewById(R.id.singledialog);
        multiDialog=(Button)findViewById(R.id.multidialog);
        loginDialog=(Button)findViewById(R.id.logindialog);
        mtextView = (TextView)findViewById(R.id.mtextview);
        mEditText = (EditText)findViewById(R.id.medit);

        listDialog.setOnClickListener(this);
        singleDialog.setOnClickListener(this);
        multiDialog.setOnClickListener(this);
        loginDialog.setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.listdialog:
                showDialog(LISTDIALOG);
                break;
            case R.id.singledialog:
                showDialog(SINGLEDIALOG);
                break;
            case R.id.multidialog:
                showDialog(MULTIDIALOG);
                break;
            case R.id.logindialog:
                showDialog(LOGINDIALOG);
                break;
            default:break;
        }
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id){
            case LISTDIALOG:
                return OnListDialog();
            case SINGLEDIALOG:
                return OnSingleDialog();
            case MULTIDIALOG:
                return OnMutiDialog();
            case LOGINDIALOG:
                return OnLoginDialog();
            default:break;
        }
        return null;
    }
    Dialog OnListDialog(){
        builder = new AlertDialog.Builder(this);
        builder.setTitle("英语六级查询");
       final String[] contents =new String[]{"99宿舍","中国教育厅","教育部考试中心"};
        builder.setItems(contents, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

                switch (which) {
                    case 0:
                        mtextView.setBackgroundColor(Color.RED);
                        mtextView.setText(contents[which]);
                        break;
                    case 1:
                        mtextView.setBackgroundColor(Color.GREEN);
                        mtextView.setText(contents[which]);
                        break;
                    case 2:
                        mtextView.setBackgroundColor(Color.YELLOW);
                        mtextView.setText(contents[which]);
                        break;
                    default:
                        break;
                }
            }
        });
        builder.setPositiveButton("确定",null);
        return builder.create();
    }
    Dialog OnSingleDialog(){
        builder = new AlertDialog.Builder(this);
       final String[] contents =new String[]{"99宿舍","中国教育厅","教育部考试中心"};
        builder.setTitle("英语六级查询");
        builder.setSingleChoiceItems(contents, 1, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

                switch (which) {
                    case 0:
                        mtextView.setBackgroundColor(Color.RED);
                        mtextView.setText(contents[which]);
                        break;
                    case 1:
                        mtextView.setBackgroundColor(Color.GREEN);
                        mtextView.setText(contents[which]);
                        break;
                    case 2:
                        mtextView.setBackgroundColor(Color.YELLOW);
                        mtextView.setText(contents[which]);
                        break;
                    default:
                        break;
                }
            }
        });
        builder.setPositiveButton("确定",null);
        return builder.create();
    }
    Dialog OnMutiDialog(){
        builder = new AlertDialog.Builder(this);
        builder.setTitle("七夕节礼物");
        final String[] qixiGift = new String[]{"情侣电影票","情侣套餐","情侣手环","情侣戒指"};
        final boolean[] checkStates = new boolean[]{false,false,false,false};
        builder.setMultiChoiceItems(qixiGift, checkStates, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                String result = "您选择的七夕礼物是：";
                for (int i = 0; i < checkStates.length; i++) {
                    if (checkStates[i]) {
                        result += qixiGift[i];
                    }
                }
                mEditText.setText(result);
            }
        });
        return builder.create();
    }
    Dialog OnLoginDialog(){
        builder = new AlertDialog.Builder(this);
        //将登录的布局文件加载到界面中
        LayoutInflater inflator = LayoutInflater.from(this);
        TableLayout loginForm = (TableLayout)inflator.inflate(R.layout.logindialog,null);
        userName =(EditText)loginForm.findViewById(R.id.username);
        password =(EditText)loginForm.findViewById(R.id.password);
        builder.setView(loginForm);
        builder.setPositiveButton("登录", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                String name = userName.getText().toString();
                Toast.makeText(MainActivity.this, name +"准备登录", Toast.LENGTH_LONG).show();
            }
        });
        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(MainActivity.this,"取消登录",Toast.LENGTH_LONG).show();
            }
        });
        return builder.create();
    }
}

<?xml version="1.0" encoding="utf-8"?>
<TableLayout
    android:id="@+id/login_layout"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent" android:layout_height="match_parent">
<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="用户登录"
    />
    <TableRow
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        >
        <TextView
            android:text="用户名"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />
        <EditText
            android:id="@+id/username"
            android:hint="请输入用户名"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            />
    </TableRow>
    <TableRow
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        >
        <TextView
            android:text="密码"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            />
        <EditText
            android:hint="请输入密码"
            android:id="@+id/password"
            android:inputType="textPassword"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            />
    </TableRow>
</TableLayout>

<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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin" tools:context=".MainActivity">
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        >
<Button
    android:id="@+id/listdialog"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="列表对话框"
    android:layout_alignParentTop="true"
    android:layout_alignParentStart="true" />
    <Button
        android:id="@+id/singledialog"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="单选对话框"
        android:layout_below="@+id/logindialog"
        android:layout_alignParentStart="true" />
    <Button
        android:id="@+id/multidialog"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="多选对话框"
        android:layout_below="@+id/singledialog"
        android:layout_toStartOf="@+id/singledialog"
        android:layout_marginTop="54dp" />
    <Button
        android:id="@+id/logindialog"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="登录对话框"
        android:layout_below="@+id/listdialog"
        android:layout_alignParentStart="true" />
        <TextView
            android:id="@+id/mtextview"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="30sp"/>
        <EditText
            android:id="@+id/medit"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:textSize="30sp"/>
    </LinearLayout>
</RelativeLayout>

Dialog的各种使用方式

标签：dialog   edittext   

原文地址：http://blog.csdn.net/u011521890/article/details/47805109