Android简单dialog的使用

final AlertDialog.Builder builder = new AlertDialog.Builder(HomeActivity.this);
builder.setTitle("更改用户吗？").setPositiveButton("是的", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
finish();
}
}).setNegativeButton("不了", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
builder.create().show();