android – 类LocalBroadcastManager的sendBroadcast方法返回什么？

概述未记录 LocalBroadcastManager.sendBroadcast()的返回值(布尔值). 我认为当至少注册一个接收器时它返回true,如果没有注册接收器则返回false.它是否正确？ 关于这个缺失的文档有一个未解决的问题：Issue 59626 是的,它检查可用的接收器,如果没有找到则返回false： 从method 219 ArrayList<Rece @H_301_1@ 未记录 LocalBroadcastManager.sendBroadcast()的返回值(布尔值).

我认为当至少注册一个接收器时它返回true,如果没有注册接收器则返回false.它是否正确？

关于这个缺失的文档有一个未解决的问题：Issue 59626

解决方法 是的,它检查可用的接收器,如果没有找到则返回false：

从method

219                ArrayList<ReceiverRecord> receivers = null;220                for (int i=0; i<entrIEs.size(); i++) {221                    ReceiverRecord receiver = entrIEs.get(i);222                    if (deBUG) Log.v(TAG,"Matching against filter " + receiver.filter);223224                    if (receiver.broadcasting) {225                        if (deBUG) {226                            Log.v(TAG,"  Filter's target already added");227                        }228                        continue;229                    }230231                    int match = receiver.filter.match(action,type,scheme,data,232                            categorIEs,"LocalbroadcastManager");233                    if (match >= 0) {234                        if (deBUG) Log.v(TAG,"  Filter matched!  match=0x" +235                                Integer.toHexString(match));236                        if (receivers == null) {237                            receivers = new ArrayList<ReceiverRecord>();238                        }239                        receivers.add(receiver);240                        receiver.broadcasting = true;241                    } else {242                        if (deBUG) {243                            String reason;244                            switch (match) {245                                case IntentFilter.NO_MATCH_ACTION: reason = "action"; break;246                                case IntentFilter.NO_MATCH_category: reason = "category"; break;247                                case IntentFilter.NO_MATCH_DATA: reason = "data"; break;248                                case IntentFilter.NO_MATCH_TYPE: reason = "type"; break;249                                default: reason = "unkNown reason"; break;250                            }251                            Log.v(TAG,"  Filter dID not match: " + reason);252                        }253                    }254                }255256                if (receivers != null) {257                    for (int i=0; i<receivers.size(); i++) {258                        receivers.get(i).broadcasting = false;259                    }260                    mPendingbroadcasts.add(new broadcastRecord(intent,receivers));261                    if (!mHandler.hasMessages(MSG_EXEC_PENDING_broADCASTS)) {262                        mHandler.sendEmptyMessage(MSG_EXEC_PENDING_broADCASTS);263                    }264                    return true;265                }266            }267        }268        return false;

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