多种Dialog对话框——Android开发

要求：设计如下界面，包括图片按钮、复选按钮、单选按钮、普通按钮，单击按钮弹出对话框，运行效果如下：

初始界面
点击图片按钮
点击复选按钮
点击单选按钮

string.xml文件源代码：

<resources>
    <string name="app_name">多种弹出对话框</string>
    <string name="dialog_img">图片按钮</string>
    <string name="dialog_radio">单选按钮</string>
    <string name="dialog_box">复选按钮</string>
    <string name="close">关闭</string>
</resources>

布局文件源代码：

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

  <ImageView
      android:id="@+id/img"
      android:layout_height="100dp"
      android:layout_width="100dp"
      android:src="@drawable/aa"/>

    <CheckBox
        android:id="@+id/Checkbox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Chinese"/>

    <CheckBox
        android:id="@+id/Checkbox2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="English"
        android:checked="true"/>

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="复选按钮确定"/>

    <RadioGroup
        android:id="@+id/radioGroup"
        android:orientation="horizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">

        <RadioButton
            android:id="@+id/male"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="male" />

        <RadioButton
            android:id="@+id/female"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:checked="true"
            android:text="female"/>

    </RadioGroup>

    <Button
        android:id="@+id/button2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="单选按钮确定"/>

</LinearLayout>

java文件源代码：

package com.example.shiyan1_4;

import android.app.Dialog;
import android.content.DialogInterface;
import android.preference.DialogPreference;
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.CheckBox;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;

import static android.R.attr.id;

public class Shiyan1_4Activity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_shiyan1_4);
        ImageView img = (ImageView) findViewById(R.id.img);
        Button button1 = (Button) findViewById(R.id.button1);
        Button button2 = (Button) findViewById(R.id.button2);
        img.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                AlertDialog.Builder dialog1 = new AlertDialog.Builder(Shiyan1_4Activity.this);
                dialog1.setTitle(R.string.dialog_img)
                        .setMessage("您点击了图片按钮！")
                        .setNegativeButton(R.string.close, null)
                        .create()
                        .show();
            }
        });

        button1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                AlertDialog.Builder dialog1 = new AlertDialog.Builder(Shiyan1_4Activity.this);
                String str1 = "";
                //获取复选按钮的值
                CheckBox Checkbox1 = (CheckBox)findViewById(R.id.Checkbox1);
                if(Checkbox1.isChecked()){
                    str1 += Checkbox1.getText() + "is selected !";
                }
                CheckBox Checkbox2 = (CheckBox)findViewById(R.id.Checkbox2);
                if(Checkbox2.isChecked()){
                    str1 += Checkbox2.getText() + "  is selected !\n";
                }
                dialog1.setTitle(R.string.dialog_box)
                        .setMessage(str1)
                        .setNegativeButton(R.string.close, null)
                        .create()
                        .show();
            }
        });

        button2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                AlertDialog.Builder dialog2 = new AlertDialog.Builder(Shiyan1_4Activity.this);
                String str2 = "";
                //获取单选按钮的值
                RadioGroup radioGroup = (RadioGroup)findViewById(R.id.radioGroup);
                for (int i = 0; i <radioGroup.getChildCount(); i++){
                    RadioButton radioButton = (RadioButton) radioGroup.getChildAt(i);
                    if(radioButton.isChecked()){
                        str2 += radioButton.getText() + "  is selected !";
                        break;
                    }
                }
                dialog2.setTitle(R.string.dialog_radio)
                        .setMessage(str2)
                        .setNegativeButton(R.string.close, null)
                        .create()
                        .show();
            }
        });
    }
}