额外的不经过意图

额外的不经过意图

本文介绍了额外的不经过意图的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我想Alarm_no传递给alarm_Time.java,当报警开始,我可以取消它,并通过意图得到Alarm_no
警报被取消,但Alarm_no没有通过,而pending_intent是空的,我不知道为什么,以及如何解决这个问题?

MainActivity2

 公共类MainActivity2扩展AppCompatActivity {
TextView的update_txt;
TextView的info_txt;
上下文语境;
@覆盖
保护无效的onCreate(捆绑savedInstanceState){    super.onCreate(savedInstanceState);
    的setContentView(R.layout.activity_main2);
    工具条工具栏=(栏)findViewById(R.id.toolbar);
    setSupportActionBar(工具栏); ///
    this.context =这一点;    update_txt =(的TextView)findViewById(R.id.update_txt);
    info_txt =(的TextView)findViewById(R.id.info_txt);    最终诠释[] H = {23,23};
    最终诠释[] M = {21,22};
    最终诠释长度= h.length;    最终意图[] =意向意向书新[长度]
    最后的日历[] = CAL新的日历[长度]
    最后AlarmManager [] = alarmManager新AlarmManager [长度]
    最终的PendingIntent [] = pending_intent新的PendingIntent [长度] ;    的for(int i = 0; I<长度;我++){
        CAL [I] = Calendar.getInstance();
        CAL [I] .SET(Calendar.HOUR_OF_DAY,H [我]);
        CAL [I] .SET(Calendar.MINUTE,M []);
        如果(CAL [I] .getTimeInMillis()< System.currentTimeMillis的())
        {CAL [I]。新增(Calendar.DAY_OF_MONTH,1); }        意图[I] =新意图(this.context,AlarmReceiver.class);
        alarmManager [I] =(AlarmManager)getSystemService(ALARM_SERVICE);    }
    按钮ALARM_ON =(按钮)findViewById(R.id.alarm_on);
    alarm_on.setOnClickListener(新View.OnClickListener(){
        @覆盖
        公共无效的onClick(视图v){            串h1_string =将String.valueOf(H [0]);
            串m1_string =将String.valueOf(M [0]);
            的for(int i = 0; I<长度;我++){
                set_alarm_text(报警吧!+ h1_string +:+ m1_string);                意图[I] .putExtra(额外,报警);
                意图[I] .putExtra(Alarm_no我);
                pending_intent [I] = PendingIntent.getBroadcast(MainActivity2.this,I,意图由[i],PendingIntent.FLAG_UPDATE_CURRENT);
                alarmManager [I] .SET(AlarmManager.RTC_WAKEUP,CAL [I] .getTimeInMillis(),pending_intent [I]);            }
        }
    });    // intialize alarm_off按钮
    按钮alarm_off =(按钮)findViewById(R.id.alarm_off);
    //创建点击听者结束报警
    alarm_off.setOnClickListener(新View.OnClickListener(){
        @覆盖
        公共无效的onClick(视图v){
            捆绑额外= getIntent()getExtras()。
            INT alarm_No = -1;
            如果(临时演员!= NULL){
                 alarm_No = extras.getInt(alarm_No2);
            }            Log.v(帮助,将String.valueOf(alarm_No));            //方法update_txt txtbox改变
            set_alarm_text(报警了!);
            //取消报警
            alarmManager [0] .cancel(pending_intent [0]);
            //把多余的串入my_intent
            //告诉您pressed报警关闭按钮时钟
            意图[0] .putExtra(额外,报警关);
            //停止铃声
            sendBroadcast(意向[0]);
        }
    });
}私人无效set_alarm_text(字符串输出){
    update_txt.setText(输出);
}私人无效set_info_text(字符串输出){
    info_txt.setText(输出);
}
@覆盖
公共布尔onCreateOptionsMenu(菜单菜单){
    。getMenuInflater()膨胀(R.menu.menu_main,菜单);
    返回true;
}
@覆盖
公共布尔onOptionsItemSelected(菜单项项){    INT ID = item.getItemId();
    如果(ID == R.id.action_settings){
        返回true;
    }
    返回super.onOptionsItemSelected(项目);
}}

AlarmReceiver

 公共类AlarmReceiver扩展广播接收器{
@覆盖
公共无效的onReceive(上下文的背景下,意图意图){
    Log.e(我们是在接收器,耶);     //获取来自意图&GT额外的字符串;>>报警关 - get_ur_string =额外//报警
    字符串get_ur_string = intent.getExtras()的getString(额外)。
    INT否= intent.getIntExtra(Alarm_no, - 1);
  // Log.e(关键是什么?,get_ur_string);
    //创建一个意图铃声服务
    意图service_intent =新意图(背景下,RingtonePlayingService.class);    //从主要活动传递到额外的铃声播放服务
    service_intent.putExtra(额外,get_ur_string);
    service_intent.putExtra(Alarm_no,否);    //启动铃声服务
    context.startService(service_intent);}}

RingtonePlayingService

 公共类RingtonePlayingService延伸服务{MediaPlayer的media_song;
INT startId;
布尔isRunning;@Nullable
@覆盖
公众的IBinder onBind(意向意图){
    返回null;
}公众诠释onStartCommand(意向意图,诠释旗帜,INT startId)
{
    Log.i(本地服务,收到起始ID+ startId +:+意向);
    //获取额外的字符串值
    字符串状态= intent.getExtras()的getString(额外)。
    INT否= intent.getIntExtra(Alarm_no,-2);
     Log.e(铃声状态:额外的,状态);
    //通知
    //设置通知服务
    NotificationManager notify_manager =(NotificationManager)
            getSystemService(NOTIFICATION_SERVICE);
    //设置一个进入的主要活动意图
    意图int​​ent_main_activity =新意图(this.getApplicationContext(),alarm_Time.class);
    intent.putExtra(额外,报警);
    intent.putExtra(Alarm_no,否);
    //设置一个悬而未决的意图
    的PendingIntent pending_intent_main_activity = PendingIntent.getActivity(这一点,不,
            intent_main_activity,PendingIntent.FLAG_UPDATE_CURRENT);
    //使通知参数
    通知notification_popup =新Notification.Builder(本)
            .setContentTitle(一个警报响起时!)
            .setContentText(点击我!)
            .setSmallIcon(R.drawable.image)
            .setContentIntent(pending_intent_main_activity)
            .setAutoCancel(真)
            。建立();
    //设置通知atart命令
    notify_manager.notify(0,notification_popup);
    //这个转换的额外字符串从意向开始的ID,值0或1
    断言状态!= NULL;
    开关(州){
        案报警:
            startId = 1;
            INT alarm_num = intent.getExtras()调用getInt(否)。
            打破;
        案报警关:
            startId = 0;
            Log.e(开始ID为状态);
            打破;
        默认:
            startId = 0;
            打破;
    }
    //如果其他statments
    //如果没有音乐播放,而且用户pressing报警的
    //音乐开始播放
    如果(this.isRunning&安培;!&安培; startId == 1){
        Log.e(没有音乐,和u要启动);
        //创建媒体播放器的瞬间
        media_song = MediaPlayer.create(这一点,R.raw.tone);
        //启动铃声
        media_song.start();
        this.isRunning = TRUE;
        this.startId = 0;    }
    //如果有音乐播放,而且用户pressing报警关
    //音乐停止播放
    否则,如果(this.isRunning&安培;&安培; startId == 0){
        Log.e(有乐,和U希望停止);        //停止铃声
        media_song.stop();
        media_song.reset();
        this.isRunning = FALSE;
        this.startId = 0;    }
    返回START_NOT_STICKY;
}@覆盖
公共无效的onDestroy(){
    //告诉我们停止用户
    Log.e(关于销毁称为,ただ」);    super.onDestroy();
    this.isRunning = FALSE;}}

ALARM_TIME

 公共类ALARM_TIME扩展AppCompatActivity {
@覆盖
保护无效的onCreate(捆绑savedInstanceState){
    super.onCreate(savedInstanceState);
    的setContentView(R.layout.activity_alarm__time);
    最终的工具条工具栏=(栏)findViewById(R.id.toolbar);
    setSupportActionBar(工具栏);    最后FloatingActionButton FAB =(FloatingActionButton)findViewById(R.id.fab);
    fab.setOnClickListener(新View.OnClickListener(){
        @覆盖
        公共无效的onClick(查看视图){
            Snackbar.make(看来,用自己的行动替换,Snackbar.LENGTH_LONG)
                    .setAction(动作,NULL).show();
        }
    });
    //最终意图的意图;
    最后AlarmManager alarmManager;
    最终的PendingIntent pending_intent;
    alarmManager =(AlarmManager)getSystemService(ALARM_SERVICE);
    //意图=新意图(this.context,RingtonePlayingService.class);
    最终意向意图=新意图(这一点,AlarmReceiver.class);
    INT否= getIntent()getIntExtra(Alarm_no,-20)。
   INT 1号= intent.getIntExtra(Alarm_no, - 5);
   Log.v(看,将String.valueOf(否));
   Log.v(see1,将String.valueOf(1号));    pending_intent = PendingIntent.getBroadcast(alarm_Time.this,不,意图,PendingIntent.FLAG_NO_CREATE);
    如果(pending_intent == NULL){
        Log.v(帮助,的PendingIntent为空);
    }
    其他{
        Log.v(帮助,的PendingIntent不为空);
    }
    // intialize alarm_off按钮
    按钮alarm_off =(按钮)findViewById(R.id.alarm_off);
    //创建点击听者结束报警
    //最终意图finalIntent =意图;
    alarm_off.setOnClickListener(新View.OnClickListener(){
        @覆盖
        公共无效的onClick(视图v){
            //方法update_txt txtbox改变
                              // set_alarm_text(报警了!);
            //取消报警
            alarmManager.cancel(pending_intent);
            //把多余的串入my_intent
            //告诉您pressed报警关闭按钮时钟
            intent.putExtra(额外,报警关);
            //停止铃声
            sendBroadcast(意向);
        }
    });
}}


解决方案

这是在code你的服务的 onStartCommand()

  //设置一个进入的主要活动意图
意图int​​ent_main_activity =新意图(this.getApplicationContext()
                                       alarm_Time.class);
intent.putExtra(额外,报警);
intent.putExtra(Alarm_no,否);

您想要把群众演员,在 intent_main_activity 而不是意图

I'm trying to pass Alarm_no to alarm_Time.java, and when alarm is started I can cancel it and get the Alarm_no through intentthe alarm is canceled but the Alarm_no doesn't pass, and the pending_intent is null, I don't know why and how to fix that?

MainActivity2

public class MainActivity2 extends AppCompatActivity {
TextView update_txt;
TextView info_txt;
Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main2);
    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar); ///
    this.context = this ;

    update_txt = (TextView) findViewById(R.id.update_txt);
    info_txt = (TextView) findViewById(R.id.info_txt);

    final int[] h = {23, 23};
    final int[] m = {21, 22};
    final int length = h.length;

    final Intent[] intent = new Intent[length];
    final Calendar[] cal = new Calendar[length];
    final AlarmManager[] alarmManager = new AlarmManager[length];
    final PendingIntent[] pending_intent = new PendingIntent[length]; ;

    for(int i =0; i<length; i++) {
        cal[i] = Calendar.getInstance();
        cal[i].set(Calendar.HOUR_OF_DAY, h[i]);
        cal[i].set(Calendar.MINUTE, m[i]);
        if (cal[i].getTimeInMillis() < System.currentTimeMillis())
        {    cal[i].add(Calendar.DAY_OF_MONTH, 1);  }

        intent[i] = new Intent(this.context, AlarmReceiver.class);
        alarmManager[i] = (AlarmManager) getSystemService(ALARM_SERVICE);

    }
    Button alarm_on = (Button) findViewById(R.id.alarm_on);
    alarm_on.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            String h1_string = String.valueOf(h[0]);
            String m1_string = String.valueOf(m[0]);


            for(int i =0; i<length; i++) {


                set_alarm_text("Alarm on!" + h1_string + ":" + m1_string);

                intent[i].putExtra("extra", "alarm on");
                intent[i].putExtra("Alarm_no", i);
                pending_intent[i] = PendingIntent.getBroadcast(MainActivity2.this, i, intent[i], PendingIntent.FLAG_UPDATE_CURRENT );
                alarmManager[i].set(AlarmManager.RTC_WAKEUP, cal[i].getTimeInMillis(), pending_intent[i]);

            }


        }
    });

    //intialize alarm_off button
    Button alarm_off = (Button) findViewById(R.id.alarm_off);
    // create on click listner to end alarm
    alarm_off.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Bundle extras = getIntent().getExtras();
            int alarm_No = -1;
            if (extras != null) {
                 alarm_No = extras.getInt("alarm_No2");
            }

            Log.v("help", String.valueOf(alarm_No));

            //method that change update_txt txtbox
            set_alarm_text("Alarm off!");
            //cancel the alarm
            alarmManager[0].cancel(pending_intent[0]);
            // put extra string into my_intent
            // tells the clock that you pressed the "alarm off" button
            intent[0].putExtra("extra", "alarm off");
            // stop the ringtone
            sendBroadcast(intent[0]);
        }
    });
}

private void set_alarm_text(String output) {
    update_txt.setText(output);
}

private void set_info_text(String output) {
    info_txt.setText(output);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.menu_main, menu);
    return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {

    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}}

AlarmReceiver

public class AlarmReceiver extends BroadcastReceiver{
@Override
public void onReceive(Context context, Intent intent) {
    Log.e("We are in the receiver", "Yay");

     //fetch extra strings from the intent   >>>  get_ur_string =extra //   alarm on - alarm off
    String get_ur_string = intent.getExtras().getString("extra");
    int No = intent.getIntExtra("Alarm_no",-1);


  //  Log.e("What is the key? ", get_ur_string);


    //create an intent to the ringtone service
    Intent service_intent = new Intent(context, RingtonePlayingService.class);

    // pass the extra from Main Activity to Ringtone Playing Service
    service_intent.putExtra("extra", get_ur_string);
    service_intent.putExtra("Alarm_no", No);

    //start the ringtone services
    context.startService(service_intent);



}}

RingtonePlayingService

public class RingtonePlayingService extends Service {

MediaPlayer media_song;
int startId;
boolean isRunning;

@Nullable
@Override
public IBinder onBind(Intent intent) {
    return null;
}

public int onStartCommand(Intent intent, int flags, int startId)
{
    Log.i("LocalService", "Received start id " + startId +": " + intent);
    // fetch the extra string values
    String state = intent.getExtras().getString("extra");
    int No = intent.getIntExtra("Alarm_no", -2);
     Log.e("Ringtone state:extra", state);
    // notification
    // set up the notification service
    NotificationManager notify_manager = (NotificationManager)
            getSystemService(NOTIFICATION_SERVICE);
    // set up an intent that goes to the Main Activity
    Intent intent_main_activity = new Intent(this.getApplicationContext(), alarm_Time.class);
    intent.putExtra("extra", "alarm on");
    intent.putExtra("Alarm_no", No);
    // set up a pending intent
    PendingIntent pending_intent_main_activity = PendingIntent.getActivity(this, No,
            intent_main_activity, PendingIntent.FLAG_UPDATE_CURRENT);
    // make the notification parameters
    Notification notification_popup = new Notification.Builder(this)
            .setContentTitle("An alarm is going off!")
            .setContentText("Click me!")
            .setSmallIcon(R.drawable.image)
            .setContentIntent(pending_intent_main_activity)
            .setAutoCancel(true)
            .build();
    // set up notification atart command
    notify_manager.notify(0, notification_popup);
    // this converts the extra strings from the intent to start IDs, values 0 or 1
    assert state != null;
    switch (state) {
        case "alarm on":
            startId = 1;
            int alarm_num = intent.getExtras().getInt("No");
            break;
        case "alarm off":
            startId = 0;
            Log.e("Start ID is", state);
            break;
        default:
            startId = 0;
            break;
    }
    // if else statments
    // if there is no music playing, and the user pressing "alarm on"
    // music should start playing
    if( !this.isRunning && startId == 1  ){
        Log.e("there is no music","and u want start");
        // create an instant of the media player
        media_song = MediaPlayer.create(this, R.raw.tone);
        // start the ringtone
        media_song.start();
        this.isRunning = true;
        this.startId = 0;

    }
    // if there is music playing, and the user pressing "alarm off"
    // music should stop playing
    else  if( this.isRunning && startId == 0 ){
        Log.e("there is  music", "and u want stop");

        // stop the ringtone
        media_song.stop();
        media_song.reset();
        this.isRunning = false;
        this.startId = 0;

    }
    return START_NOT_STICKY;
}

@Override
public void onDestroy() {
    //tell the user we stopped
    Log.e("on Destroy called", "ta da");

    super.onDestroy();
    this.isRunning = false;

}}

alarm_Time

public class alarm_Time extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_alarm__time);
    final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    final FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                    .setAction("Action", null).show();
        }
    });
    //  final Intent intent ;
    final AlarmManager alarmManager ;
    final PendingIntent pending_intent ;
    alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    // intent = new Intent(this.context, RingtonePlayingService.class);
    final Intent intent = new Intent(this, AlarmReceiver.class);
    int No = getIntent().getIntExtra("Alarm_no", -20);
   int No1 = intent.getIntExtra("Alarm_no",-5);
   Log.v("see", String.valueOf(No));
   Log.v("see1", String.valueOf(No1));

    pending_intent = PendingIntent.getBroadcast(alarm_Time.this,No, intent, PendingIntent.FLAG_NO_CREATE);
    if (pending_intent == null) {
        Log.v("help", "PendingIntent is null");
    }
    else {
        Log.v("help", "PendingIntent is not null");
    }
    //intialize alarm_off button
    Button alarm_off = (Button) findViewById(R.id.alarm_off);
    // create on click listner to end alarm
    //final Intent finalIntent = intent;
    alarm_off.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            //method that change update_txt txtbox
                              // set_alarm_text("Alarm off!");
            //cancel the alarm
            alarmManager.cancel(pending_intent);
            // put extra string into my_intent
            // tells the clock that you pressed the "alarm off" button
            intent.putExtra("extra", "alarm off");
            // stop the ringtone
            sendBroadcast(intent);
        }
    });
}}
解决方案

This is the code in your service's onStartCommand():

// set up an intent that goes to the Main Activity
Intent intent_main_activity = new Intent(this.getApplicationContext(),
                                       alarm_Time.class);
intent.putExtra("extra", "alarm on");
intent.putExtra("Alarm_no", No);

You want to put the "extras" in intent_main_activity and not in intent.

这篇关于额外的不经过意图的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-14 16:37