Android开发学习笔记-显示对话框

private void ShowUpdateDialog() {
Log.i("version", "shengji");
AlertDialog.Builder dialog = new Builder(this);
dialog.setTitle("提醒升级");
dialog.setMessage("是否进行升级？");
dialog.setPositiveButton("立刻升级", new OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub

}
});
dialog.setNegativeButton("暂不升级", new OnClickListener() {

@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
dialog.dismiss();
ShowMainActivity();
}
});
dialog.show();
}