Android adb外壳am广播-广播接收器抛出空指针
我正在尝试启动此命令:Android adb外壳am广播-广播接收器抛出空指针,android,nullpointerexception,sms,broadcastreceiver,adb,Android,Nullpointerexception,Sms,Broadcastreceiver,Adb,我正在尝试启动此命令: adb shell am broadcast -a android.provider.Telephony.SMS_RECEIVED --es sms_body "TEXTTEXTTEXT" -n com.example.name/.receivers.SmsReceiver 此代码引发空指针异常: 公共类SmsReceiver扩展了BroadcastReceiver{ ... private Context mContext; private Intent mIn
adb shell am broadcast -a android.provider.Telephony.SMS_RECEIVED --es sms_body "TEXTTEXTTEXT" -n com.example.name/.receivers.SmsReceiver
此代码引发空指针异常:
公共类SmsReceiver扩展了BroadcastReceiver{
...
private Context mContext;
private Intent mIntent;
public void onReceive(Context context, Intent intent) {
mContext = context;
mIntent = intent;
String action = intent.getAction();
if (action.equals(Const.ACTION_SMS_RECEIVED)) {
String address = "", str = "";
SmsMessage[] msgs = getMessagesFromIntent(mIntent);
...
}
}
public static SmsMessage[] getMessagesFromIntent (Intent intent){
Object[] messages = (Object[]) intent.getSerializableExtra("pdus");
byte[][] pduObjs = new byte[messages.length][];
for (int i = 0; i < messages.length; i++) {
pduObjs[i] = (byte[]) messages[i];
}
byte[][] pdus = new byte[pduObjs.length][];
int pduCount = pdus.length;
SmsMessage[] msgs = new SmsMessage[pduCount];
for (int i = 0; i < pduCount; i++) {
pdus[i] = pduObjs[i];
msgs[i] = SmsMessage.createFromPdu(pdus[i]);
}
return msgs;
}
现在,这里是棘手的部分。
我在SmsReceiver中的代码适用于正常的SMS消息。当我尝试“模拟”此问题时,我收到了此错误。可能是我与adb命令混淆了某些内容。我尝试自己修复它,但没有成功。你知道我做错了什么吗
你知道我做错了什么吗
您正在发送一个带有额外名为sms\u body
的字符串的广播。您的代码没有使用该字符串。您的代码使用的是可序列化的额外名为PDU
当我试图“模拟”这个问题时,我得到了这个错误
使用DDMS中的Emulator Control(仿真器控制)选项卡,或者仿真器控制台(例如,telnet localhost 5554
),向仿真器发送模拟SMS消息
或者,将SMS处理逻辑移动到一个Java类中,您可以使用JUnit进行测试。是的,我使用了pdus部分,但仍然不走运。关于使用emulator…有没有使用外部设备的方法?(谈论unittests-不幸的是,我正在处理其他人的项目,对代码进行更改不是很舒服,现在我只是“拨弄”)@user1812056:“有没有办法使用外部设备?”——不使用DDMS或模拟器控制台。因此,如果我错了,请纠正我:没有办法“馈送”“我的BroadcastReceiver在我的物理设备上,命令与我发布的类似?@user1812056:我不知道您如何在命令行上创建PDU
extra,因为它不是字符串,而是一个可序列化的
对象。
12-30 15:48:34.724 26032-26032/com.example.name E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.example.name, PID: 26032
java.lang.RuntimeException: Unable to start receiver com.example.name.receivers.SmsReceiver: java.lang.NullPointerException
at android.app.ActivityThread.handleReceiver(ActivityThread.java:2567)
at android.app.ActivityThread.access$1800(ActivityThread.java:161)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1341)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5356)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at com.example.name.receivers.SmsReceiver.getMessagesFromIntent(SmsReceiver.java:60)
at com.example.name.receivers.SmsReceiver.onReceive(SmsReceiver.java:30)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:2552)
at android.app.ActivityThread.access$1800(ActivityThread.java:161)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1341)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:157)
at android.app.ActivityThread.main(ActivityThread.java:5356)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
at dalvik.system.NativeStart.main(Native Method)