質問編集履歴
1
onClick()の記述ミスを発見，レシーバの警告ログの提示
test
CHANGED
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File without changes
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test
CHANGED
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@@ -34,103 +34,219 @@
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// リスナー解放 レシーバを中断する処理は，onClick（）
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protected void onPause() {
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super.onPause();
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getMembers = false;
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Log.d("onPause()", "位置情報と方角取得リスナをリリース");
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mSensorManager.unregisterListener(this);
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//stop location updates when Activity is no longer active
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-
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if (fusedLocationClient != null) {
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-
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fusedLocationClient.removeLocationUpdates(mLocationCallback);
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}
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}
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@Override
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public void onClick(View v) {
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64
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if (R.id.exitGroup == v.getId()) {
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receiveTask.cancel(false);
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/***********追記**************************************************/
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70
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UtilCommon utilCommon = (UtilCommon) UtilCommon.getAppContext();
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DatagramSocket socket = utilCommon.getDatagramSocket();
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/*****************************************************************/
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new Thread(()->{
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try(DatagramSocket s = new DatagramSocket();) {
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-
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// 宛先ポートが「s.getLocalPort()」としていた
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DatagramPacket p = new DatagramPacket(new byte[]{0}, 1, InetAddress.getLocalHost(), socket.getLocalPort());
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s.send(p);
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86
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Log.d("onClick()", "ダミーパケット送信");
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} catch(IOException e) {
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e.printStackTrace();
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}
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}).start();
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exitAndCloseProcess();
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finish();
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} else if (R.id.send == v.getId()) {
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//...
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} else if (R.id.mute == v.getId()) {
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//...
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}
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}
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```
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```ここに言語を入力
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public class ReceiveTask extends AsyncTask<Void, Void, Void> {
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private boolean running = true;
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// ...
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@Override
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protected Void doInBackground(Void... strings) {
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Log.d("ReceiveTask", "レシーバの処理を開始");
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DatagramPacket receivePacket = new DatagramPacket(new byte[2048], 2048);
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UtilCommon utilCommon = (UtilCommon) UtilCommon.getAppContext();
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DatagramSocket socket = utilCommon.getDatagramSocket();
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while(running) {
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if (isCancelled()){
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Log.d("ReceiveTask", "isCancelled:レシーバの処理を中断します");
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break;
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}
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try {
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socket.receive(receivePacket); //
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} catch (I
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} catch (IOException e) {
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Log.d("ReceiveTask", "受信エラー:" + e);
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}
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String receivedResult = new String(receivePacket.getData(), 0, receivePacket.getLength());
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try {
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// ↓のコードで Warning
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JSONObject jsonObject = new JSONObject(receivedResult);
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//受け取ったデータを基に処理
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//...
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} catch (JSONException e) {
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e.printStackTrace();
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Log.d("Receiver(シグナリングとPeer)", "エラー:" + e);
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}
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if (receiveTask.getStatus() != AsyncTask.Status.FINISHED) {
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receiveTask.cancel(true);
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}
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receiveTask = null;
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}
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return null;
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}
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}
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@Override
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protected void onCancelled() {
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Log.d("ReceiveTask", "onCancelled:レシーバの処理を中断します");
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running = false;
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}
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}
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```
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### 発生している警告
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214
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72
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ReceiveTask.java:70がJSONObject jsonObject = new JSONObject(receivedResult); です．
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この警告は，無視して問題ないでしょうか。
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74
218
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75
219
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```ここに言語を入力
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76
220
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77
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-
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78
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-
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79
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public class ReceiveTask extends AsyncTask<Void, Void, Void> {
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80
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81
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private boolean running = true;
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82
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83
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84
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85
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221
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D/onClick(): ダミーパケット送信
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222
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+
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86
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-
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223
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W/System.err: org.json.JSONException: Value �� of type java.lang.String cannot be converted to JSONObject
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224
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87
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-
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225
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W/System.err: at org.json.JSON.typeMismatch(JSON.java:111)
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88
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226
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89
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227
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at org.json.JSONObject.<init>(JSONObject.java:163)
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228
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90
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229
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at org.json.JSONObject.<init>(JSONObject.java:176)
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230
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231
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at com.example.g_lockonbyaw.signaling.receiver.ReceiveTask.doInBackground(ReceiveTask.java:70)
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232
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233
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at com.example.g_lockonbyaw.signaling.receiver.ReceiveTask.doInBackground(ReceiveTask.java:27)
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234
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91
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-
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235
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at android.os.AsyncTask$2.call(AsyncTask.java:333)
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92
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236
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93
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-
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237
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at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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238
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94
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-
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239
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W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
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240
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95
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-
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241
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at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
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96
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-
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242
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97
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-
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243
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at java.lang.Thread.run(Thread.java:764)
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244
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98
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-
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245
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D/Receiver(シグナリングとPeer): エラー:org.json.JSONException: Value �� of type java.lang.String cannot be converted to JSONObject
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246
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+
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99
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-
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247
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D/ReceiveTask: isCancelled:レシーバの処理を中断します
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100
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-
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101
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248
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+
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102
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-
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103
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}
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104
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105
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try {
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106
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107
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socket.receive(receivePacket); //
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108
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109
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} catch (IOException e) {
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110
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-
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111
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Log.d("ReceiveTask", "受信エラー:" + e);
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112
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-
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113
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}
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114
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115
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}
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116
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117
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return null;
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118
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119
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}
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120
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-
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121
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122
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-
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123
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@Override
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124
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125
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protected void onCancelled() {
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126
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-
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127
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-
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249
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D/ReceiveTask: onCancelled:レシーバの処理を中断します
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128
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-
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129
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running = false;
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130
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-
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131
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}
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132
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133
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}
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250
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251
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136
252
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