AlertDialog 对话框简单Dome

1:获得对话框对象 <this 指上下文>

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

2:设置标题

builder.setTitle("通过移动数据访问？");

3:设置图片

builder.setIcon(R.mipmap.ic_launcher);

4：对选项监听

builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {                 @Override                 public void onClick(DialogInterface dialog, int which) {                    });

builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {                 @Override                 public void onClick(DialogInterface dialog, int which) {                                     }             });

5:展示对话框

 builder .show();