即时通讯使用opencellid.org从Cell ID和Mnc以及Mmcc等信息获取Mobile的位置，我能够获得CellId，MNC，MCC和LAC但无法从这些信息中获取位置错误显示“ android.os.NetworkOnMainThreadException “
这是代码
public class OpenCellID {
String mcc; //Mobile Country Code
String mnc; //mobile network code
String cellid; //Cell ID
String lac; //Location Area Code
Boolean error;
String strURLSent;;
String GetOpenCellID_fullresult;;
String latitude;
String longitude;
public Boolean isError(){
return error;
}
public void setMcc(String value){
mcc = value;
}
public void setMnc(String value){
mnc = value;
}
public void setCallID(int value){
cellid = String.valueOf(value);
}
public void setCallLac(int value){
lac = String.valueOf(value);
}
public String getLocation(){
return(latitude + " : " + longitude);
}
public void groupURLSent(){
strURLSent =
"http://www.opencellid.org/cell/get?mcc=" + mcc
+"&mnc=" + mnc
+"&cellid=" + cellid
+"&lac=" + lac
+"&fmt=txt";
}
public String getstrURLSent(){
return strURLSent;
}
public String getGetOpenCellID_fullresult(){
return GetOpenCellID_fullresult;
}
public void GetOpenCellID() throws Exception {
groupURLSent();
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(strURLSent);
HttpResponse response = client.execute(request);
GetOpenCellID_fullresult = EntityUtils.toString(response.getEntity());
spliteResult();
}
private void spliteResult(){
if(GetOpenCellID_fullresult.equalsIgnoreCase("err")){
error = true;
}else{
error = false;
String[] tResult = GetOpenCellID_fullresult.split(",");
latitude = tResult[0];
longitude = tResult[1];
}
}
}
int myLatitude, myLongitude;
OpenCellID openCellID;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView textGsmCellLocation = (TextView)findViewById(R.id.gsmcelllocation);
TextView textMCC = (TextView)findViewById(R.id.mcc);
TextView textMNC = (TextView)findViewById(R.id.mnc);
TextView textCID = (TextView)findViewById(R.id.cid);
TextView textLAC = (TextView)findViewById(R.id.lac);
TextView textGeo = (TextView)findViewById(R.id.geo);
TextView textRemark = (TextView)findViewById(R.id.remark);;
//retrieve a reference to an instance of TelephonyManager
TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
GsmCellLocation cellLocation = (GsmCellLocation)telephonyManager.getCellLocation();
String networkOperator = telephonyManager.getNetworkOperator();
String mcc = networkOperator.substring(0, 3);
String mnc = networkOperator.substring(3);
textMCC.setText("mcc: " + mcc);
textMNC.setText("mnc: " + mnc);
int cid = cellLocation.getCid();
int lac = cellLocation.getLac();
textGsmCellLocation.setText(cellLocation.toString());
textCID.setText("gsm cell id: " + String.valueOf(cid));
textLAC.setText("gsm location area code: " + String.valueOf(lac));
openCellID = new OpenCellID();
openCellID.setMcc(mcc);
openCellID.setMnc(mnc);
openCellID.setCallID(cid);
openCellID.setCallLac(lac);
try {
openCellID.GetOpenCellID();
if(!openCellID.isError()){
textGeo.setText(openCellID.getLocation());
textRemark.setText( "\n\n"
+ "URL sent: \n" + openCellID.getstrURLSent() + "\n\n"
+ "response: \n" + openCellID.GetOpenCellID_fullresult);
}else{
textGeo.setText("Error");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
textGeo.setText("Exception: " + e.toString());
Log.d("location is not valid",e.toString());
}
}
}
记录猫没有显示错误
: Flushing caches (mode 0)
received file descriptor 48 from ADB
D/ActivityThread(27520): BIND_APPLICATION handled : 0 / AppBindData{appInfo=ApplicationInfo{4180ddd8 com.example.cellid_areacode}}
processIncoming
processIncoming
handlePacket : cmd=0x1, cmdSet=0xC7, len=0x13, id=0x4000010A, flags=0x0, dataLen=0x8
REQ: DDM.Chunk (cmd=199/1 dataLen=8 id=0x4000010a)
reply: dataLen=9 err=NONE(0)
processIncoming
handlePacket : cmd=0x1, cmdSet=0xC7, len=0x17, id=0x4000010B, flags=0x0, dataLen=0xC
REQ: DDM.Chunk (cmd=199/1 dataLen=12 id=0x4000010b)
reply: dataLen=104 err=NONE(0)
processIncoming
handlePacket : cmd=0x1, cmdSet=0xC7, len=0x13, id=0x4000010C, flags=0x0, dataLen=0x8
REQ: DDM.Chunk (cmd=199/1 dataLen=8 id=0x4000010c)
reply: dataLen=216 err=NONE(0)
processIncoming
handlePacket : cmd=0x1, cmdSet=0xC7, len=0x13, id=0x4000010D, flags=0x0, dataLen=0x8
REQ: DDM.Chunk (cmd=199/1 dataLen=8 id=0x4000010d)
reply: dataLen=9 err=NONE(0)
processIncoming
handlePacket : cmd=0x1, cmdSet=0xC7, len=0x14, id=0x4000010E, flags=0x0, dataLen=0x9
REQ: DDM.Chunk (cmd=199/1 dataLen=9 id=0x4000010e)
reply: dataLen=0 err=NONE(0)
getDefaultSim is sim1
create GsmCellLocation
getDefaultSim is sim1
getaddrinfo: www.opencellid.org return error = 0x8 >>
android.os.NetworkOnMainThreadException
at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1099)
at java.net.InetAddress.lookupHostByName(InetAddress.java:392)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:243)
at java.net.InetAddress.getAllByName(InetAddress.java:221)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:137)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:363)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
at com.example.cellid_areacode.MainActivity$OpenCellID.GetOpenCellID(MainActivity.java:80)
at com.example.cellid_areacode.MainActivity.onCreate(MainActivity.java:141)
at android.app.Activity.performCreate(Activity.java:4479)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1050)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2041)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2104)
at android.app.ActivityThread.access$600(ActivityThread.java:134)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1247)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:4624)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
at dalvik.system.NativeStart.main(Native Method)
location is not valid(27520): android.os.NetworkOnMainThreadException
ActivityThread(27520): ACT-AM_ON_RESUME_CALLED ActivityRecord{4180f378 token=android.os.BinderProxy@4180eb00 {com.example.cellid_areacode/com.example.cellid_areacode.MainActivity}}
ACT-LAUNCH_ACTIVITY handled : 0 / ActivityRecord{4180f378 token=android.os.BinderProxy@4180eb00 {com.example.cellid_areacode/com.example.cellid_areacode.MainActivity}}
GC_CONCURRENT freed 194K, 4% free 9425K/9719K, paused 1ms+1ms
loaded /system/lib/egl/libGLES_android.so
loaded /vendor/lib/egl/libEGL_mtk.so
loaded /vendor/lib/egl/libGLESv1_CM_mtk.so
loaded /vendor/lib/egl/libGLESv2_mtk.so
Enabling debug mode 0
threadid=11: interp stack at 0x4d174000
showStatusIcon on inactive InputConnection
如果我没有错，我必须编写AsyncTask类，但我不应该在AsyncTask类中的DoinBackground函数中编写哪个函数或代码。 帮助将不胜感激 在此先感谢
答案 0 :(得分：1)
我的异步任务课程如下
public class MainActivity extends AppCompatActivity {
private OpenCellID openCellID;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TelephonyManager tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
GsmCellLocation loc = (GsmCellLocation) tm.getCellLocation();
String networkOperator = tm.getNetworkOperator();
String mcc = networkOperator.substring(0, 3);
String mnc = networkOperator.substring(3);
int cellid = loc.getCid();
int lac = loc.getLac();
openCellID = new OpenCellID();
openCellID.setMcc(mcc);
openCellID.setMnc(mnc);
openCellID.setCallID(cellid);
openCellID.setCallLac(lac);
new GetLocation().execute();
}
class GetLocation extends AsyncTask<String, Void, Void> {
private Exception exception;
protected Void doInBackground(String... urls) {
try {
try {
openCellID.GetOpenCellID();
if(!openCellID.isError()) {
Toast.makeText(getApplicationContext(), openCellID.getLocation(), Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
e.printStackTrace();
}
return null;
} catch (Exception e) {
this.exception = e;
return null;
}
}
protected void onPostExecute(Void feed) {
// TODO: check this.exception
// TODO: do something with the feed
}
}
public class OpenCellID {
String mcc; //Mobile Country Code
String mnc; //mobile network code
String cellid; //Cell ID
String lac; //Location Area Code
Boolean error;
String strURLSent;
String GetOpenCellID_fullresult;
String latitude;
String longitude;
public Boolean isError(){
return error;
}
public void setMcc(String value){
mcc = value;
}
public void setMnc(String value){
mnc = value;
}
public void setCallID(int value){
cellid = String.valueOf(value);
}
public void setCallLac(int value){
lac = String.valueOf(value);
}
public String getLocation(){
return(latitude + " : " + longitude);
}
public void groupURLSent(){
strURLSent =
"http://www.opencellid.org/cell/get?key=15e7c7be-4d6c-42bc-a79c-23be75abcc87&mcc=" + mcc
+"&mnc=" + mnc
+"&cellid=" + cellid
+"&lac=" + lac
+"&fmt=txt";
}
public String getstrURLSent(){
return strURLSent;
}
public String getGetOpenCellID_fullresult(){
return GetOpenCellID_fullresult;
}
public void GetOpenCellID() throws Exception {
groupURLSent();
HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(strURLSent);
HttpResponse response = client.execute(request);
GetOpenCellID_fullresult = EntityUtils.toString(response.getEntity());
spliteResult();
}
private void spliteResult(){
if(GetOpenCellID_fullresult.equalsIgnoreCase("err")){
error = true;
}else{
error = false;
String[] tResult = GetOpenCellID_fullresult.split(",");
latitude = "23.028431";
longitude = "72.491422";
}
}
}
}
还有一个建议是在您的网址中添加api密钥，否则它不会给您带来结果。
您可以从this链接
创建API密钥