Android培训全面课程（32天实战课程）

         今日起，亚嵌官网上每日推出一篇Android培训实战课程，爱好者的可以去网站上查看更新......（官网地址：http://www.akaedu.org/page/news2.php）
   Android培训实战课程一：Dialog篇

1对话框的.确定和取消
确定和取消这两个按钮   通过调用 setPositiveButton 方法 和 setNegativeButton 方法 可以设置按钮的显示内容以及按钮的监听事件。

使用AlerDialog 创建对话框 

AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this); 

使用builder设置对话框的title button icon 等等 

1             builder.setIcon(R.drawable.icon);

2             builder.setTitle("你确定要离开吗？");

3             builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

4                 public void onClick(DialogInterface dialog, int whichButton) {

5                     //这里添加点击确定后的逻辑

6                     showDialog("你选择了确定");

7                 }

8             });

9             builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

10                 public void onClick(DialogInterface dialog, int whichButton) {

11                     //这里添加点击确定后的逻辑

12                     showDialog("你选择了取消");

13                 }

14             });

15             builder.create().show();

这个dialog用于现实onClick后监听的内容信息 

1     private void showDialog(String str) {

2          new AlertDialog.Builder(MainDialog.this)

3          .setMessage(str)

4          .show();

5     }

2.多个按钮信息框

3.

1             AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);                    

2             builder.setIcon(R.drawable.icon);

3             builder.setTitle("投票");

4             builder.setMessage("您认为什么样的内容能吸引您？");

5             builder.setPositiveButton("搞笑的", new DialogInterface.OnClickListener() {

6                 public void onClick(DialogInterface dialog, int whichButton) {

7                     showDialog("你选择了搞笑的");

8                 }

9             });

10             builder.setNeutralButton("有意义的", new DialogInterface.OnClickListener() {

11                 public void onClick(DialogInterface dialog, int whichButton) {

12                     showDialog("你选择了有意义的");                    

13                 }

14             });

15             builder.setNegativeButton("抒情的", new DialogInterface.OnClickListener() {

16                 public void onClick(DialogInterface dialog, int whichButton) {

17                     showDialog("你选择了抒情的");  

18                 }

19             });

20             builder.create().show();

4.列表框

这个数组用于列表选择 

1            AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);       

2             builder.setTitle("列表选择框");

3             builder.setItems(mItems, new DialogInterface.OnClickListener() {

4                 public void onClick(DialogInterface dialog, int which) {

5                     //点击后弹出窗口选择了第几项

6                     showDialog("你选择的id为" + which + " , " + mItems[which]);

7                 }

8             });

9             builder.create().show();

4.单项选择列表框

mSingleChoice 用于记录单选中的ID 

 int mSingleChoiceID = -1;

1          AlertDialog.Builder builder = new AlertDialog.Builder(MainDialog.this);       

2 

3          mSingleChoiceID = -1;

4          builder.setIcon(R.drawable.icon);

5              builder.setTitle("单项选择");

6              builder.setSingleChoiceItems(mItems, 0, new DialogInterface.OnClickListener() {

7                  pub
4000
lic void onClick(DialogInterface dialog, int whichButton) {

8                          mSingleChoiceID = whichButton;

9                          showDialog("你选择的id为" + whichButton + " , " + mItems[whichButton]);

10                  }

11              });

12              builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {

13                  public void onClick(DialogInterface dialog, int whichButton) {

14                      if(mSingleChoiceID > 0) {

15                      showDialog("你选择的是" + mSingleChoiceID);

16                      }

17                  }

18              });

19              builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {

20                  public void onClick(DialogInterface dialog, int whichButton) {

21 

22                  }

23              });

24             builder.create().show();

   注明：未完，另还有两个自定义，读取进度框的源码例子，查看请进——》http://blog.sina.com.cn/s/blog_6aeab2610100x4er.html