标准app基础模板建立-活动管理-定时服务-键值对存储-日志工具

一、建立工程

1.建立一个空白的工程,名称为ModelApp。

2.在main-java下新建package,起名com.jiaweiqiang.tools,用于放置通用工具类。

二、建立得到全局变量的Application类

1.在tools中新建MyApplication类,用于存储全局context和其他程序需要的通用变量。

public class MyApplication extends Application {
    private static Context context;
    private static LocalBroadcastManager localBroadcastManager;

    @Override
    public void onCreate() {
        super.onCreate();
        context = getApplicationContext();
        localBroadcastManager = LocalBroadcastManager.getInstance(context);
    }
    /**
     * 得到全局的一个Context
     * @return 全局的Context
     */
    public static Context getContext(){
        return context;
    }

    /**
     * 公用的本地广播的管理器,可以将广播限制在本软件接收
     * @return 公用的管理器
     */
    public static LocalBroadcastManager getLocalBroadcastManager(){
        return localBroadcastManager;
    }
}

2.在AndroManifest.xml文件中注册自定义的MyApplication类。

<application
        android:name="com.jiaweiqiang.tools.MyApplication"
       >
        
    </application>

三、统一管理活动

1.建立一个自定义的所有活动的父类,自动将所有活动添加到上面的ActivityCollector中统一管理。

/**
 * Created by jiaweiqiang on 2017/12/30.
 * <p>所有活动的父类,互动创建时增加了写入功能,活动销毁时,将活动移除</p>
 */

public class BaseActivity extends AppCompatActivity {
    public static List<Activity> activities = new ArrayList<Activity>();

    public static void addActivity(Activity activity){
        activities.add(activity);
    }

    public static void removeActivity(Activity activity){
        activities.remove(activity);
    }

    public static void finishAll(){
        for(Activity a : activities){
            if(!a.isFinishing()){
                a.finish();
            }
        }
    }
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addActivity(this);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        removeActivity(this);
    }
}

2.后续新建的活动全部要继承自BaseActivity。如果再某个活动要结束全部活动,直接调用静态方法即可。

四、定时服务工具

1.新建TimerService服务

/**
 * 定时服务,启动后,定时发送广播,完成定时功能
 * <p>提供精确定时和非精确定时</p>
 */
public class TimerService extends Service {
    /**
     * 定时进行广播,相当于全局定时器
     */
    public final static String TIMER_DISPLAY = "cou.jiaweiqiang.tools.timer";

    private static AlarmManager manager;
    private static Intent timeIntent;
    private static PendingIntent timePendingIntent;

    private static Handler sHandler ;
    private static Runnable sRunnable;

    public TimerService() {
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        timerBroadcast();
        return super.onStartCommand(intent, flags, startId);
    }
    /**
     * 定时进行广播,相当于全局定时器
     */
    private void timerBroadcast(){
        Intent intent = new Intent(TIMER_DISPLAY);
        MyApplication.getLocalBroadcastManager().sendBroadcast(intent);
    }

    /**
     * 开启定时服务,每次定时开启,可以在传入的活动或者服务的startCommond中重复调用执行代码
     * @param context 使用定时服务的上下文
     * @param interval 定时的间隔
     */
    public static void startAlarmByAlarmManager(Context context,int interval){
        manager = (AlarmManager)context.getSystemService(ALARM_SERVICE);
        int timer = interval;
        long triggerAtTimes = System.currentTimeMillis()+timer;
        timeIntent = new Intent(context,TimerService.class);
        timePendingIntent = PendingIntent.getService(context,0,timeIntent,0);
        manager.setRepeating(AlarmManager.RTC_WAKEUP,triggerAtTimes,timer,timePendingIntent);
    }
    public static void stopAlarmByAlarmManager(){
        manager.cancel(timePendingIntent);
    }

    /**
     * 定时工具,采用handler方法开启定时,一定时间间隔定时唤醒服务
     * @param context 需要开启的服务的上下文
     * @param interval 整数的时间间隔,以毫秒计算
     */
    public static void startAlarmByHandler(Context context, int interval){
        sHandler = new Handler() ;
        sRunnable = new Runnable() {
            @Override
            public void run() {
                TimerService.startService(context);
                sHandler.postDelayed(this,interval);
            }
        };

        sHandler.postDelayed(sRunnable,interval);
    }

    /**
     * 停止以handler方法开启的定时操作
     */
    public static void stopAlarmByHandler(){
        sHandler.removeCallbacks(sRunnable);
    }

    /**
     * 启动本服务的启动函数
     * @param context 启动服务的上下文
     */
    public static void startService(Context context){
        Intent intent = new Intent(context,TimerService.class);
        context.startService(intent);
    }
    /**
     * 停止本服务的函数
     * @param context 要停止服务的上下文
     */
    public static void stopService(Context context){
        Intent intent = new Intent(context,TimerService.class);
        context.stopService(intent);
    }

    /**
     * 为某个广播接收器注册接收定时广播的功能
     * @param mReceiver 要接收广播的接收器
     */
    public static void registerTimerReceiver(BroadcastReceiver mReceiver){
        IntentFilter intentFilter = new IntentFilter();
        intentFilter.addAction(TimerService.TIMER_DISPLAY);
        MyApplication.getLocalBroadcastManager().registerReceiver(mReceiver,intentFilter);
    }

    /**
     * 为注册定时广播的接收器解除注册
     * @param mReceiver
     */
    public static void unregisterTimerReceiver(BroadcastReceiver mReceiver){
        MyApplication.getLocalBroadcastManager().unregisterReceiver(mReceiver);
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }
}

2.在需要定时服务的活动或者服务中,调用API进行注册并使用。

@Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        init();

        TimerService.registerTimerReceiver(mReceiver);
    }

 private BroadcastReceiver mReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            num++;
            mtxt.setText(String.valueOf(num));
        }
    };

Override
    protected void onDestroy() {
        super.onDestroy();
        TimerService.unregisterTimerReceiver(mReceiver);
    }

五、持久化存储

1.建立以程序名称为名称的键值对存储文件。并将存取函数用静态函数进行封装。

/**
 * Created by jiaweiqiang on 2017/12/31.
 * <p>程序公用的一个数据存储集合,是以程序名称命名的一个持久化存储文件的封装</p>
 * <p>其中主要存储一些程序运行的设置参数</p>
 */

public class DataShare {
    private static SharedPreferences pref;
    private static SharedPreferences.Editor editor;
    /**
     * 表示初次写入的标志位,如果是false,则表示从未写入,一旦写入,就变为true
     */
    private final static String FIRST_FLAG = "firstSetupFlag";
    public final static String ONCE_FLAG = "ifOnceMeasureFlag";
    public final static String SERIAL_MEASURE_TIMES = "serialMeasureTimes";

    //初始化程序数据,如果从未写入,则初次写入数据
    public DataShare(){
        //采用默认名称的存储
        pref = PreferenceManager.getDefaultSharedPreferences(MyApplication.getContext());
        editor = pref.edit();
        if(pref.getBoolean(FIRST_FLAG,false)== false){
            initPara();
        }else {
            editor.putBoolean(ONCE_FLAG,true);
            editor.apply();
        }
    }

    private void initPara(){
        editor.putBoolean(FIRST_FLAG,true);
        editor.putInt(SERIAL_MEASURE_TIMES,3);
        editor.putBoolean(ONCE_FLAG,true);


        editor.apply();
    }

    /**
     * 从程序的公用存储中得到制定名称的一个int值,如果此名称对应的值不存在,则返回-1
     * @param key int值对应的键名
     * @return 存储的int值
     */
    public static int getInt(String key){
        return pref.getInt(key,-1);
    }
    public static void putInt(String key,int data){
        editor.putInt(key,data);
        editor.apply();
    }
    /**
     * 从程序的公用存储中得到制定名称的一个float值,如果此名称对应的值不存在,则返回-1
     * @param key 值对应的键名
     * @return 存储的float值
     */
    public static float getFloat(String key){
        return pref.getFloat(key,-1);
    }
    public static void putFloat(String key,float data){
        editor.putFloat(key,data);
        editor.apply();
    }
    public static void putBoolean(String key,boolean data){
        editor.putBoolean(key,data);
        editor.apply();
    }
    public static  boolean getBoolean(String key){
        return pref.getBoolean(key,true);
    }
}

2.在MyApplication中初始化此类。

private static DataShare dataShare;

    @Override
    public void onCreate() {
        super.onCreate();
        context = getApplicationContext();
        localBroadcastManager = LocalBroadcastManager.getInstance(context);
        dataShare = new DataShare();
    }

六、定制日志工具

建立logUtil类

/**
 * Created by jiaweiqiang on 2018/1/21.
 * <p>可以通过将level设置不同的常量值,控制打印的范围</p>
 */

public class LogUtil {
    public static final int VERBOSE = 1;
    public static final int DEBUG = 2;
    public static final int INFO = 3;
    public static final int WARN = 4;
    public static final int ERROR = 5;
    public static final int NOTHING = 6;
    public static int level = VERBOSE;

    public static void v(String tag,String msg){
        if(level <= VERBOSE){
            Log.v(tag,msg);
        }
    }
    public static void d(String tag,String msg){
        if(level <= DEBUG){
            Log.d(tag,msg);
        }
    }
    public static void i(String tag,String msg){
        if(level <= INFO){
            Log.i(tag,msg);
        }
    }
    public static void w(String tag,String msg){
        if(level <= WARN){
            Log.w(tag,msg);
        }
    }
    public static void e(String tag,String msg){
        if(level <= ERROR){
            Log.e(tag,msg);
        }
    }

}

 

posted @ 2018-01-21 13:42  JMatrix  阅读(231)  评论(0编辑  收藏  举报