Android(安卓)Studio常用对话框

下面我们一起来了解一下对话框，对话框是我们以后Android必要的一些按键。下面是我整理的三种常用对话框。
如图：

请看代码部分：
1.MainActivity.java（主界面）
package cn.qjnu.wxf;

import android.app.Activity;import android.app.AlertDialog;import android.app.ProgressDialog;import android.content.DialogInterface;import android.content.Intent;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.Toast;public class MainActivity extends Activity {Button button;  //创建一个按钮@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    button = findViewById(R.id.bt_one);    button.setOnClickListener(new View.OnClickListener() {        @Override        public void onClick(View v) {            ProgressDialog prodgressdialog;            prodgressdialog = new ProgressDialog(MainActivity.this);            prodgressdialog.setTitle("下载进度");            prodgressdialog.setIcon(R.mipmap.ic_launcher);            prodgressdialog.setMessage("正在下载...");            prodgressdialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);            prodgressdialog.show();        }    });}//普通对话框public void click1(View view) {    AlertDialog dialog;    dialog = new AlertDialog.Builder(this)            .setTitle("普通对话框")  //设置标题            .setIcon(R.mipmap.ic_launcher) //设置图标            .setMessage("确定退出？") //提示信息            .setPositiveButton("确定",null)   //添加“确定”按钮            .setNegativeButton("取消",null)   //添加“取消”按钮            .create();  //创建对话框    dialog.show();  //显示对话框}//单选对话框public void click2(View view) {    AlertDialog dialog;    dialog = new AlertDialog.Builder(this)            .setTitle("选择性别")  //设置标题            .setIcon(R.mipmap.ic_launcher) //设置图标            .setSingleChoiceItems(new String[]{"男","女"}, 0,                    new DialogInterface.OnClickListener() {                        @Override                        public void onClick(DialogInterface dialog, int which) {                        }                    }            )            .setPositiveButton("确定",null)   //添加“确定”按钮            .setNegativeButton("取消",null)   //添加“取消”按钮            .create();  //创建对话框    dialog.show();  //显示对话框}//多选对话框public void click3(View view) {    AlertDialog dialog;    dialog = new AlertDialog.Builder(this)            .setTitle("选择你的兴趣")  //设置标题            .setIcon(R.mipmap.ic_launcher) //设置图标            .setMultiChoiceItems(new String[]{"看电影","打游戏","旅游","吃","喝"},null,null)            .setPositiveButton("确定",null)   //添加“确定”按钮            .create();  //创建对话框    dialog.show();  //显示对话框}//圆形进度条public void click4(View view) {    ProgressDialog prodgressdialog;    prodgressdialog = new ProgressDialog(MainActivity.this);    prodgressdialog.setTitle("下载进度");    prodgressdialog.setIcon(R.mipmap.ic_launcher);    prodgressdialog.setMessage("正在下载...");    prodgressdialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);    prodgressdialog.show();}//消息对话框public void click5(View view) {    Toast.makeText(this,"我是消息对话框",Toast.LENGTH_SHORT).show();}//样式public void click7(View view) {    Intent intent =new Intent(this,styleActivity.class);    startActivity(intent);}//主题public void click8(View view) {    Intent intent = new Intent(this,themeActivity.class);    startActivity(intent);}//自定义对话框public void click6(View view) {    MyDialog myDialog = new MyDialog(this,"hello！我是你的自定义");    myDialog.show();}

}

1.activity_main.xml（主界面）

<?xml version="1.0" encoding="utf-8"?>

2.activity_my_dialog.xml(自定义对话框)

      <?xml version="1.0" encoding="utf-8"?>

2.MyDialog.java(自定义对话框)
package cn.qjnu.wxf;

import android.app.Dialog;import android.content.Context;import android.support.v7.app.AppCompatActivity;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 dialogName;    private TextView tvMsg;    private Button btnOK;    private  Button btnCancel;    public MyDialog(Context context, String dialogName){        super(context);        this.dialogName = dialogName;    }    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        requestWindowFeature(Window.FEATURE_NO_TITLE); //去除标题        setContentView(R.layout.activity_my_dialog);        tvMsg = (TextView) findViewById(R.id.tv_msg);        btnOK = (Button) findViewById(R.id.btn_ok);        btnCancel = (Button) findViewById(R.id.btn_cancel);        tvMsg.setText(dialogName);  //设置自定义对话框显示内容        //为“确定”按钮设置点击事件        btnOK.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //此处写需要处理的逻辑            }        });        //为“取消”按钮设置点击事件        btnCancel.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                dismiss();  //关闭当前对话框            }        });    }}

3.activity_style.xml（样式）

<?xml version="1.0" encoding="utf-8"?>

3.styleActivity.java(样式)
package cn.qjnu.wxf;

import android.os.Bundle;
import android.app.Activity;

public class styleActivity extends Activity {

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_style);}

}

4.activity_theme.xml（主题）

<?xml version="1.0" encoding="utf-8"?>   **4.themeActivity.java(主题)**package cn.qjnu.wxf;

import android.os.Bundle;
import android.app.Activity;

public class themeActivity extends Activity {

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_theme);}

}

6.values–>styles.xml配置

文件目录：

讲解：

源码下载：https://download.csdn.net/download/weixin_43849104/11065970
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