Android开发手记(13) 几种Alertdialog的使用

　　本文主要讨论七种形式的AlertDialog，及其编写方法。

1、退出

　　在用户退出的时候提示用户是否退出，含有“确定”和“退出”两个按键。

 1        btnExit.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 final AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);
 5                 alertDlg.setMessage("确定退出吗？");
 6                 alertDlg.setTitle("退出");
 7                 alertDlg.setPositiveButton("确定", new DialogInterface.OnClickListener() {
 8                     @Override
 9                     public void onClick(DialogInterface dialogInterface, int i) {
10                         MainActivity.this.finish();
11                     }
12                 });
13                 alertDlg.setNegativeButton("取消", null);
14                 alertDlg.show();
15             }
16         });

2、调查图表

　　弹出对话框，让用户选择相应的按钮来获得用户选项。含有相应的提示问题。

 1 btnChart.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);
 5                 alertDlg.setIcon(android.R.drawable.btn_star);
 6                 alertDlg.setTitle("调查");
 7                 alertDlg.setMessage("你喜欢的颜色是？");
 8                 alertDlg.setPositiveButton("红色", new DialogInterface.OnClickListener() {
 9                     @Override
10                     public void onClick(DialogInterface dialogInterface, int i) {
11                         Toast.makeText(MainActivity.this, "你喜欢红色", Toast.LENGTH_SHORT);
12                     }
13                 });
14                 alertDlg.setNegativeButton("蓝色", new DialogInterface.OnClickListener() {
15                     @Override
16                     public void onClick(DialogInterface dialogInterface, int i) {
17                         Toast.makeText(MainActivity.this, "你喜欢蓝色", Toast.LENGTH_SHORT);
18                     }
19                 });
20                 alertDlg.setNeutralButton("黄色", new DialogInterface.OnClickListener() {
21                     @Override
22                     public void onClick(DialogInterface dialogInterface, int i) {
23                         Toast.makeText(MainActivity.this, "你喜欢黄色", Toast.LENGTH_SHORT);
24                     }
25                 });
26                 alertDlg.show();
27             }
28         });

3、输入内容

　　弹出对话框，提示用户输入用户名或者密码，可以作登陆使用。

 1         btnContent.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);
 5                 alertDlg.setTitle("请输入");
 6                 alertDlg.setIcon(android.R.drawable.ic_dialog_info);
 7                 alertDlg.setView(new EditText(MainActivity.this)).setPositiveButton("确定", null);
 8                 alertDlg.setNegativeButton("取消", null);
 9                 alertDlg.show();
10             }
11         });

4、单选按钮

　　对话框内含有一系列单选按钮让用户选择。

 1         btnRadio.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 new AlertDialog.Builder(MainActivity.this).setTitle("单选框")
 5                         .setIcon(android.R.drawable.ic_dialog_info)
 6                         .setSingleChoiceItems(new String[]{"红色", "蓝色", "黄色"}, 0, null)
 7                         .setPositiveButton("确定", null)
 8                         .setNegativeButton("取消", null).show();
 9             }
10         });

5、多选按钮

　　对话框内含有一系列多选按钮让用户选择。

 1         btnCheckBox.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 new AlertDialog.Builder(MainActivity.this).setTitle("复选框")
 5                         .setIcon(android.R.drawable.ic_dialog_info)
 6                         .setMultiChoiceItems(new String[]{"红色", "蓝色", "黄色"}, null, null)
 7                         .setPositiveButton("确定", null)
 8                         .setNegativeButton("取消", null).show();
 9             }
10         });

6、简单列表

　　含有一系列简单的列表，供用户点击，可以做菜单使用。

 1         btnList.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 new AlertDialog.Builder(MainActivity.this).setTitle("列表框")
 5                         .setIcon(android.R.drawable.ic_dialog_info)
 6                         .setItems(new String[]{"红色", "蓝色", "黄色"}, null)
 7                         .setPositiveButton("确定", null)
 8                         .setNegativeButton("取消", null).show();
 9             }
10         });

7、自定义布局

　　可以自定义对话框显示内容，通过资源文件导入布局。

 1         btnCostume.setOnClickListener(new View.OnClickListener() {
 2             @Override
 3             public void onClick(View view) {
 4                 LayoutInflater inflater = getLayoutInflater();
 5                 View layout = inflater.inflate(R.layout.activity_main,
 6                         (ViewGroup)findViewById(R.id.mainMenu));
 7 
 8                 new AlertDialog.Builder(MainActivity.this).setTitle("自定义布局")
 9                         .setView(layout)
10                         .setPositiveButton("确定", null)
11                         .setNegativeButton("取消", null).show();
12             }
13         });

8、完整代码：

  1 import android.app.AlertDialog;
  2 import android.app.Dialog;
  3 import android.content.DialogInterface;
  4 import android.support.v7.app.AppCompatActivity;
  5 import android.os.Bundle;
  6 import android.view.LayoutInflater;
  7 import android.view.View;
  8 import android.view.ViewGroup;
  9 import android.widget.Button;
 10 import android.widget.EditText;
 11 import android.widget.Toast;
 12 
 13 public class MainActivity extends AppCompatActivity {
 14 
 15     private Button btnExit;
 16     private Button btnChart;
 17     private Button btnContent;
 18     private Button btnRadio;
 19     private Button btnCheckBox;
 20     private Button btnList;
 21     private Button btnCostume;
 22 
 23     @Override
 24     protected void onCreate(Bundle savedInstanceState) {
 25         super.onCreate(savedInstanceState);
 26         setContentView(R.layout.activity_main);
 27 
 28         btnExit = (Button)findViewById(R.id.btnExit);
 29         btnChart = (Button)findViewById(R.id.btnChart);
 30         btnContent = (Button)findViewById(R.id.btnContent);
 31         btnRadio = (Button)findViewById(R.id.btnRadio);
 32         btnCheckBox = (Button)findViewById(R.id.btnCheckBox);
 33         btnList = (Button)findViewById(R.id.btnList);
 34         btnCostume = (Button)findViewById(R.id.btnCostume);
 35 
 36 
 37         btnExit.setOnClickListener(new View.OnClickListener() {
 38             @Override
 39             public void onClick(View view) {
 40                 final AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);
 41                 alertDlg.setMessage("确定退出吗？");
 42                 alertDlg.setTitle("退出");
 43                 alertDlg.setPositiveButton("确定", new DialogInterface.OnClickListener() {
 44                     @Override
 45                     public void onClick(DialogInterface dialogInterface, int i) {
 46                         MainActivity.this.finish();
 47                     }
 48                 });
 49                 alertDlg.setNegativeButton("取消", null);
 50                 alertDlg.show();
 51             }
 52         });
 53 
 54         btnChart.setOnClickListener(new View.OnClickListener() {
 55             @Override
 56             public void onClick(View view) {
 57                 AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);
 58                 alertDlg.setIcon(android.R.drawable.btn_star);
 59                 alertDlg.setTitle("调查");
 60                 alertDlg.setMessage("你喜欢的颜色是？");
 61                 alertDlg.setPositiveButton("红色", new DialogInterface.OnClickListener() {
 62                     @Override
 63                     public void onClick(DialogInterface dialogInterface, int i) {
 64                         Toast.makeText(MainActivity.this, "你喜欢红色", Toast.LENGTH_SHORT);
 65                     }
 66                 });
 67                 alertDlg.setNegativeButton("蓝色", new DialogInterface.OnClickListener() {
 68                     @Override
 69                     public void onClick(DialogInterface dialogInterface, int i) {
 70                         Toast.makeText(MainActivity.this, "你喜欢蓝色", Toast.LENGTH_SHORT);
 71                     }
 72                 });
 73                 alertDlg.setNeutralButton("黄色", new DialogInterface.OnClickListener() {
 74                     @Override
 75                     public void onClick(DialogInterface dialogInterface, int i) {
 76                         Toast.makeText(MainActivity.this, "你喜欢黄色", Toast.LENGTH_SHORT);
 77                     }
 78                 });
 79                 alertDlg.show();
 80             }
 81         });
 82 
 83         btnContent.setOnClickListener(new View.OnClickListener() {
 84             @Override
 85             public void onClick(View view) {
 86                 AlertDialog.Builder alertDlg = new AlertDialog.Builder(MainActivity.this);
 87                 alertDlg.setTitle("请输入");
 88                 alertDlg.setIcon(android.R.drawable.ic_dialog_info);
 89                 alertDlg.setView(new EditText(MainActivity.this)).setPositiveButton("确定", null);
 90                 alertDlg.setNegativeButton("取消", null);
 91                 alertDlg.show();
 92             }
 93         });
 94 
 95         btnRadio.setOnClickListener(new View.OnClickListener() {
 96             @Override
 97             public void onClick(View view) {
 98                 new AlertDialog.Builder(MainActivity.this).setTitle("单选框")
 99                         .setIcon(android.R.drawable.ic_dialog_info)
100                         .setSingleChoiceItems(new String[]{"红色", "蓝色", "黄色"}, 0, null)
101                         .setPositiveButton("确定", null)
102                         .setNegativeButton("取消", null).show();
103             }
104         });
105 
106         btnCheckBox.setOnClickListener(new View.OnClickListener() {
107             @Override
108             public void onClick(View view) {
109                 new AlertDialog.Builder(MainActivity.this).setTitle("复选框")
110                         .setIcon(android.R.drawable.ic_dialog_info)
111                         .setMultiChoiceItems(new String[]{"红色", "蓝色", "黄色"}, null, null)
112                         .setPositiveButton("确定", null)
113                         .setNegativeButton("取消", null).show();
114             }
115         });
116 
117         btnList.setOnClickListener(new View.OnClickListener() {
118             @Override
119             public void onClick(View view) {
120                 new AlertDialog.Builder(MainActivity.this).setTitle("列表框")
121                         .setIcon(android.R.drawable.ic_dialog_info)
122                         .setItems(new String[]{"红色", "蓝色", "黄色"}, null)
123                         .setPositiveButton("确定", null)
124                         .setNegativeButton("取消", null).show();
125             }
126         });
127 
128         btnCostume.setOnClickListener(new View.OnClickListener() {
129             @Override
130             public void onClick(View view) {
131                 LayoutInflater inflater = getLayoutInflater();
132                 View layout = inflater.inflate(R.layout.activity_main,
133                         (ViewGroup)findViewById(R.id.mainMenu));
134 
135                 new AlertDialog.Builder(MainActivity.this).setTitle("自定义布局")
136                         .setView(layout)
137                         .setPositiveButton("确定", null)
138                         .setNegativeButton("取消", null).show();
139             }
140         });
141 
142     }
143 
144 }

MainActivity.java

posted @ 2015-10-20 21:27 doodle777 阅读(368) 评论(0) 编辑收藏举报

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Android开发手记(13) 几种Alertdialog的使用

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