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   源码介绍

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安卓客户端

android开源项目源码，完整任务倒计时提醒源码，下载文件作为模块引入即可。

提示：创建好任务后，点击任务名称 才能真正开始倒计时任务，到点时开始播放音乐提醒，请测试

package com.example.myalarm;

import android.app.AlarmManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.PowerManager;
import android.os.SystemClock;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.Toast;

import java.util.Map;

public class MainActivity extends AppCompatActivity {

    private SharedPreferences sps ;
    int alarmKey, alarmTime, workNum;
    private LinearLayout ll_work;
    private int alarmId = 1;

    PowerManager powerManager = null;
    PowerManager.WakeLock wakeLock = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

//        设置屏幕常亮
        powerManager = (PowerManager)this.getSystemService(this.POWER_SERVICE);
        wakeLock = this.powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, "My Lock");

        ll_work = (LinearLayout) findViewById(R.id.ll_work);
        ll_work.removeAllViews();


        sps = getSharedPreferences("share", Context.MODE_PRIVATE);
        workNum = sps.getInt("workNum",0);


        for(int i = 0 ; i < workNum ; i  ){
            final LinearLayout ll= (LinearLayout) LayoutInflater.from(MainActivity.this).inflate(R.layout.add_button,null);
            ll.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
            final Button btn=(Button)ll.findViewById(R.id.work_btn);

            String textKey = "work"   (i 1);
            String btnText = sps.getString(textKey,"");
            btn.setText(btnText);
            ll_work.addView(ll);
        }

        for(int j=0;j<ll_work.getChildCount();j  ){
            final Button bt=(Button) ll_work.getChildAt(j).findViewById(R.id.work_btn);
            final int finalJ = j;
            bt.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
//                    Button btnEvent = (Button) findViewById(v.getId());
//                    String btnMsg = (String) btnEvent.getText();

                    alarmId = alarmId   1;
                    String btnMsg = (String) bt.getText();
                    alarmKey = v.getId();
//        闹钟倒计时时间
                    alarmTime = sps.getInt(btnMsg,0);
                    alarmTime=alarmTime*1000;//换成毫秒

                    Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
                    intent.putExtra("task",btnMsg);
                    intent.putExtra("alarmKey",alarmKey);

                    PendingIntent pi = PendingIntent.getBroadcast(MainActivity.this,alarmKey   alarmId,intent,0);

                    long firstTime = SystemClock.elapsedRealtime(); // 开机之后到现在的运行时间(包括睡眠时间)
                    firstTime  = alarmTime;

                    // 进行闹铃注册
                    AlarmManager manager = (AlarmManager) getSystemService(ALARM_SERVICE);
                    //manager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, 3000, sender);//重复闹钟
                    manager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, pi);

                    Toast.makeText(MainActivity.this,btnMsg "任务倒计时开始",Toast.LENGTH_SHORT).show();
                }
            });
        }
    }

//    public void setAlarm(View v){
//        Button btnEvent = (Button) findViewById(v.getId());
//        String btnMsg = (String) btnEvent.getText();
//
//        alarmKey = v.getId();
////        闹钟倒计时时间
//        alarmTime = sps.getInt(btnMsg,0);
//        alarmTime=alarmTime*1000;//换成毫秒
//
//        Intent intent = new Intent(MainActivity.this, AlarmReceiver.class);
//        intent.putExtra("task",btnMsg);
//        intent.putExtra("alarmKey",alarmKey);
//
//        PendingIntent pi = PendingIntent.getBroadcast(MainActivity.this,alarmKey,intent,0);
//
//        long firstTime = SystemClock.elapsedRealtime(); // 开机之后到现在的运行时间(包括睡眠时间)
//        firstTime  = alarmTime;
//
//        // 进行闹铃注册
//        AlarmManager manager = (AlarmManager) getSystemService(ALARM_SERVICE);
//        //manager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, 3000, sender);//重复闹钟
//        manager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, firstTime, pi);
//
//        Toast.makeText(MainActivity.this,btnMsg "任务倒计时开始",Toast.LENGTH_SHORT).show();
//    }

    @Override
    protected void onResume() {
        super.onResume();
        wakeLock.acquire();
    }

    @Override
    protected void onPause() {
        super.onPause();
        wakeLock.release();
    }
}