4.23日软件开发日记：今天我干了什么？

今天，我想要优化一下界面，更改了颜色使用了ps软件来只做自己的设置按键还有主界面

另外今天开始完成了课前提醒功能

package zzm.org.kebiaojiemian;


import android.app.Activity;
import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.os.Vibrator;

public class RemindActivity extends Activity
{
    private Vibrator vibrator;

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);

        SharedPreferences pre = getSharedPreferences("time", Context.MODE_MULTI_PROCESS);
        int advance_time = pre.getInt("time_choice", 30);

        //获取系统的vibrator服务，并设置手机振动2秒
        vibrator = (Vibrator)getSystemService(Service.VIBRATOR_SERVICE);
        vibrator.vibrate(2000);

        // 创建一个对话框
        final AlertDialog.Builder builder= new AlertDialog.Builder(RemindActivity.this);
        builder.setIcon(R.drawable.ic_launcher);
        builder.setTitle("温馨提示");
        builder.setMessage("童鞋，还有" + advance_time + "分钟就要上课了哦！");
        builder.setPositiveButton(
                "确定" ,
                new OnClickListener()
                {
                    @Override
                    public void onClick(DialogInterface dialog , int which)
                    {
                        // 结束该Activity
                        RemindActivity.this.finish();
                    }
                }
        )
                .show();
    }

    @Override
    public void onBackPressed() {
        super.onBackPressed();
        // 结束该Activity
        RemindActivity.this.finish();
    }


}