Android中弹出对话框，AlertDialog关键代码

 1 btn01.setOnClickListener(new OnClickListener() {
 2             
 3             @Override
 4             public void onClick(View v) {
 5                 Toast.makeText(musicActivity.this, "tanchu", 100).show();
 6                 //以下是弹出对话框的关键代码,
 7                 AlertDialog.Builder b = new AlertDialog.Builder(musicActivity.this);
 8                 b.setTitle("wyl");
 9                 b.setIcon(R.drawable.icon);
10                 b.create().show();
11                 
12             }
13         });