目录
一、提示信息对话框:
//显示提示消息对话框
private void showMsgDialog() {
//创建AlertDialog构造器Builder对象,AlertDialog建议使用android.support.v7.app包下的。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//设置对话框标题
builder.setTitle("提示信息对话框");
//设置提示信息
builder.setMessage("是否确定退出!");
//设置对话框图标
builder.setIcon(R.mipmap.ic_launcher);
//添加确定按钮
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//添加确定按钮点击的处理代码
Toast.makeText(MainActivity.this, "点击了确定!", Toast.LENGTH_SHORT).show();
}
});
//添加取消按钮
builder.setNegativeButton("取消",null);
//创建并显示对话框
builder.show();
}
二、单选对话框:
//显示单选对话框
private void showSingleChoiceDialog() {
//创建AlertDialog构造器Builder对象,AlertDialog建议使用android.support.v7.app包下的。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//设置对话框标题
builder.setTitle("请选择性别");
//设置对话框图标
builder.setIcon(R.mipmap.ic_launcher);
final String[] sexs = new String[]{"男", "女"};
//设置单选选项
builder.setSingleChoiceItems(sexs, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "您选择了:"+sexs[which], Toast.LENGTH_SHORT).show();
}
});
//添加确定按钮
builder.setPositiveButton("确定", null);
//创建并显示对话框
builder.show();
}
三、多选对话框:
//显示多选对话框
private void showMultiChoiceDialog() {
//创建AlertDialog构造器Builder对象,AlertDialog建议使用android.support.v7.app包下的。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//设置对话框标题
builder.setTitle("请选择传感器");
//设置对话框图标
builder.setIcon(R.mipmap.ic_launcher);
final String[] sensors = new String[]{"温湿度传感器", "光照传感器","CO2传感器","风速传感器"};
//设置多选选项
builder.setMultiChoiceItems(sensors, new boolean[]{false,true,true,false}, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
}
});
//添加确定按钮
builder.setPositiveButton("确定", null);
//创建并显示对话框
builder.show();
}
四、自定义对话框:
自定义对话框布局:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/tvTitle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#2372c1"
android:gravity="center"
android:text="提示"
android:padding="5dp"
android:textColor="#fff"
android:textSize="25sp" />
<TextView
android:id="@+id/tvContent"
android:layout_width="match_parent"
android:layout_height="200dp"
android:gravity="center"
android:text="自定义对话框内容" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#c0c0c0"
android:gravity="center"
android:orientation="horizontal">
<Button
android:id="@+id/btnOk"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="确定" />
<Button
android:id="@+id/btnCancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:text="取消" />
</LinearLayout>
</LinearLayout>
MyDialog.Java
package com.newland.dialogdemo;
import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.widget.Button;
import android.widget.TextView;
public class MyDialog extends Dialog {
private String title;
private String content;
private TextView tvTitle;
private TextView tvContent;
private Button btnOk;
private Button btnCancel;
public MyDialog(Context context) {
super(context);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//去除标题
requestWindowFeature(Window.FEATURE_NO_TITLE);
//引入自定义对话框布局
setContentView(R.layout.my_dialog);
//初始化控件
initView();
//设置标题
tvTitle.setText(title);
//设置内容
tvContent.setText(content);
//注册确认按钮监听器
btnOk.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//点击确认时的操作
}
});
//注册取消按钮监听器
btnCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//关闭对话框
dismiss();
}
});
}
//初始化控件
private void initView() {
tvTitle = findViewById(R.id.tvTitle);
tvContent = findViewById(R.id.tvContent);
btnOk = findViewById(R.id.btnOk);
btnCancel = findViewById(R.id.btnCancel);
}
public void setTitle(String title) {
this.title = title;
}
public void setContent(String content) {
this.content = content;
}
}
MainActivity.Java
//显示自定义对话框
private void showCustomDialog() {
MyDialog dialog = new MyDialog(this);
dialog.setTitle("自定义对话框");
dialog.setContent("你好!这里是自定义对话框!");
dialog.show();
}
演示项目完整代码:
<?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">
<Button
android:id="@+id/btnShowMsgDlg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="提示信息对话框"/>
<Button
android:id="@+id/btnShowSingleDlg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="单选对话框"/>
<Button
android:id="@+id/btnShowMultiDlg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="多选对话框"/>
<Button
android:id="@+id/btnShowCustomDlg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="自定义对话框"/>
</LinearLayout>
package com.newland.dialogdemo;
import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
//显示提示信息对话框按钮
private Button btnShowMsgDlg;
//显示单选对话框按钮
private Button btnShowSingleDlg;
//显示多选对话框按钮
private Button btnShowMultiDlg;
//显示自定义对话框按钮
private Button btnShowCustomDlg;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化视图以及监听器
initView();
}
//初始化视图以及监听器
private void initView() {
//初始化控件
btnShowMsgDlg = findViewById(R.id.btnShowMsgDlg);
btnShowSingleDlg = findViewById(R.id.btnShowSingleDlg);
btnShowMultiDlg = findViewById(R.id.btnShowMultiDlg);
btnShowCustomDlg = findViewById(R.id.btnShowCustomDlg);
//注册按钮监听器
btnShowMsgDlg.setOnClickListener(this);
btnShowSingleDlg.setOnClickListener(this);
btnShowMultiDlg.setOnClickListener(this);
btnShowCustomDlg.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnShowMsgDlg: //显示提示信息对话框按钮
showMsgDialog();
break;
case R.id.btnShowSingleDlg: //显示单选对话框按钮
showSingleChoiceDialog();
break;
case R.id.btnShowMultiDlg: //显示多选对话框按钮
showMultiChoiceDialog();
break;
case R.id.btnShowCustomDlg: //显示自定义对话框按钮
showCustomDialog();
break;
}
}
//显示提示消息对话框
private void showMsgDialog() {
//创建AlertDialog构造器Builder对象,AlertDialog建议使用android.support.v7.app包下的。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//设置对话框标题
builder.setTitle("提示信息对话框");
//设置提示信息
builder.setMessage("是否确定退出!");
//设置对话框图标
builder.setIcon(R.mipmap.ic_launcher);
//添加确定按钮
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//添加确定按钮点击的处理代码
Toast.makeText(MainActivity.this, "点击了确定!", Toast.LENGTH_SHORT).show();
}
});
//添加取消按钮
builder.setNegativeButton("取消",null);
//创建并显示对话框
builder.show();
}
//显示单选对话框
private void showSingleChoiceDialog() {
//创建AlertDialog构造器Builder对象,AlertDialog建议使用android.support.v7.app包下的。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//设置对话框标题
builder.setTitle("请选择性别");
//设置对话框图标
builder.setIcon(R.mipmap.ic_launcher);
final String[] sexs = new String[]{"男", "女"};
//设置单选选项
builder.setSingleChoiceItems(sexs, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "您选择了:"+sexs[which], Toast.LENGTH_SHORT).show();
}
});
//添加确定按钮
builder.setPositiveButton("确定", null);
//创建并显示对话框
builder.show();
}
//显示多选对话框
private void showMultiChoiceDialog() {
//创建AlertDialog构造器Builder对象,AlertDialog建议使用android.support.v7.app包下的。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//设置对话框标题
builder.setTitle("请选择传感器");
//设置对话框图标
builder.setIcon(R.mipmap.ic_launcher);
final String[] sensors = new String[]{"温湿度传感器", "光照传感器","CO2传感器","风速传感器"};
//设置多选选项
builder.setMultiChoiceItems(sensors, new boolean[]{false,true,true,false}, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
}
});
//添加确定按钮
builder.setPositiveButton("确定", null);
//创建并显示对话框
builder.show();
}
//显示自定义对话框
private void showCustomDialog() {
MyDialog dialog = new MyDialog(this);
dialog.setTitle("自定义对话框");
dialog.setContent("你好!这里是自定义对话框!");
dialog.show();
}
}