有普通对话框，单选对话框，复选对话框，进度条的两种实现方法话不多说，直接上代码
activity_main.xml:
1 <?xml version="1.0" encoding="utf-8"?> 2 <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:app="http://schemas.android.com/apk/res-auto" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 tools:context=".MainActivity"> 8 <LinearLayout 9 android:id="@+id/mainLinearLayout" 10 android:layout_width="match_parent" 11 android:layout_height="match_parent" 12 android:orientation="vertical"> 13 <Button 14 android:layout_width="wrap_content" 15 android:layout_height="wrap_content" 16 android:text="普通对话框" 17 android:onClick="normalDialog"/> 18 19 <Button 20 android:layout_width="wrap_content" 21 android:layout_height="wrap_content" 22 android:text="单选对话框" 23 android:onClick="singleDialog"/> 24 <Button 25 android:layout_width="wrap_content" 26 android:layout_height="wrap_content" 27 android:text="复选对话框" 28 android:onClick="MultiDialog"/> 29 <Button 30 android:layout_width="wrap_content" 31 android:layout_height="wrap_content" 32 android:text="进度条对话框" 33 android:onClick="progressDialog"/> 34 <Button 35 android:id="@+id/downlodebutton" 36 android:layout_width="wrap_content" 37 android:layout_height="wrap_content" 38 android:text="进度条对话框" 39 android:onClick="progressDialog"/> 40 </LinearLayout> 41 42 </android.support.constraint.ConstraintLayout>
MainActivity.java:
1 package com.lgqrlchinese.dialogtext; 2 3 import android.app.ProgressDialog; 4 import android.content.DialogInterface; 5 import android.os.SystemClock; 6 import android.support.v7.app.AlertDialog; 7 import android.support.v7.app.AppCompatActivity; 8 import android.os.Bundle; 9 import android.view.View; 10 import android.widget.Button; 11 import android.widget.LinearLayout; 12 import android.widget.ProgressBar; 13 import android.widget.Toast; 14 15 16 public class MainActivity extends AppCompatActivity { 17 protected String result; 18 19 @Override 20 protected void onCreate(Bundle savedInstanceState) { 21 super.onCreate(savedInstanceState); 22 setContentView(R.layout.activity_main); 23 progerssNow(); 24 } 25 26 //普通对话框 27 public void normalDialog(View view) { 28 //构建器 29 AlertDialog.Builder b = new AlertDialog.Builder(this); 30 //设置标题 31 b.setTitle("普通对话框"); 32 //设置提示信息 33 b.setMessage("是否确定退出"); 34 //设置图标 35 b.setIcon(R.drawable.ic_launcher_background); 36 //添加确定按钮 37 b.setPositiveButton("确定", new DialogInterface.OnClickListener() { 38 @Override 39 public void onClick(DialogInterface dialogInterface, int i) { 40 finish(); 41 } 42 }); 43 //添加取消按钮 44 b.setNegativeButton("取消", null); 45 //创建对话框 46 b.create(); 47 //显示 48 b.show(); 49 } 50 51 //单选对话框 52 public void singleDialog(View view) { 53 AlertDialog.Builder b = new AlertDialog.Builder(this); 54 b.setTitle("单选对话框"); 55 //选项内容 56 final String item[] = {"A", "B", "C", "D"}; 57 //setSingleChoiceItems(显示的选项内容，默认值，监听事件) 58 b.setSingleChoiceItems(item, -1, new DialogInterface.OnClickListener() { 59 @Override 60 public void onClick(DialogInterface dialogInterface, int i) { 61 //取出数组中的数据 62 result = item[i]; 63 //吐司显示出来 64 Toast.makeText(getApplicationContext(), result, Toast.LENGTH_SHORT).show(); 65 } 66 }); 67 //设置确定按钮 68 b.setPositiveButton("确定", new DialogInterface.OnClickListener() { 69 @Override 70 public void onClick(DialogInterface dialogInterface, int i) { 71 Toast.makeText(getApplicationContext(), "选择的结果是" + result, Toast.LENGTH_SHORT).show(); 72 } 73 }); 74 75 b.create(); 76 b.show(); 77 } 78 79 //复选对话框 80 public void MultiDialog(View view) { 81 AlertDialog.Builder b = new AlertDialog.Builder(this); 82 b.setTitle("复选框对话框"); 83 b.setIcon(R.drawable.ic_launcher_background); 84 //设置选项 85 final String item[] = {"A", "B", "C", "D"}; 86 //设置默认值 87 final boolean chechedItem[] = {true, false, true, true}; 88 //设置多选setMultiChoiceItems(选项数组，默认值，监听事件) 89 b.setMultiChoiceItems(item, chechedItem, new DialogInterface.OnMultiChoiceClickListener() { 90 @Override 91 public void onClick(DialogInterface dialogInterface, int i, boolean b) { 92 93 } 94 }); 95 b.setPositiveButton("确定", new DialogInterface.OnClickListener() { 96 @Override 97 public void onClick(DialogInterface dialogInterface, int i) { 98 StringBuffer stringBuffer = new StringBuffer(); 99 for (int i1 = 0; i1 < chechedItem.length; i1++) { 100 if (chechedItem[i1]) { 101 stringBuffer.append(item[i1] + " "); 102 } 103 } 104 Toast.makeText(getApplicationContext(), stringBuffer.toString(), Toast.LENGTH_SHORT).show(); 105 } 106 }); 107 b.create(); 108 b.show(); 109 } 110 111 //进度条对话框 112 /* 113 * 在API level 26 中，ProgressDialog被声明不赞成使用，应使用的替代方法是ProgressBar 114 * */ 115 public void progressDialog(View view) { 116 final ProgressDialog progressDialog = new ProgressDialog(this); 117 //设置标题 118 progressDialog.setTitle("正在加载中》》》"); 119 //设置样式 120 progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 121 //（模拟下载）线程睡眠 122 new Thread() { 123 @Override 124 public void run() { 125 //设置最大值 126 progressDialog.setMax(100); 127 //设置当前值 128 for (int i = 0; i < 100; i++) { 129 progressDialog.setProgress(i); 130 SystemClock.sleep(500); 131 } 132 progressDialog.dismiss(); 133 } 134 }.start(); 135 progressDialog.show(); 136 } 137 138 //进度条对话框（推荐使用） 139 public void progerssNow() { 140 LinearLayout mainLayout; 141 Button downlodebutton; 142 mainLayout = findViewById(R.id.mainLinearLayout); 143 downlodebutton = findViewById(R.id.downlodebutton); 144 final ProgressBar progressBar = new ProgressBar(this, null, android.R.attr.progressBarStyleHorizontal); 145 downlodebutton.setOnClickListener(new View.OnClickListener() { 146 @Override 147 public void onClick(View view) { 148 new Thread() { 149 @Override 150 public void run() { 151 152 progressBar.setMax(100); 153 for (int i = 0; i < 100; i++) { 154 progressBar.setProgress(i); 155 SystemClock.sleep(12); 156 } 157 158 } 159 }.start(); 160 } 161 }); 162 mainLayout.addView(progressBar); 163 } 164 }