简单的android弹出框

AlertDialog.Builder b = new AlertDialog.Builder(MainActivity.this);
b.setTitle(“标题”);
b.setMessage(“内容”);
//确定点击事件
b.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
result.confirm();
}
});
//隐藏取消按钮
b.setCancelable(false);
b.create().show();