以下是我的Java实现。我的想法是在编辑文本中显示myUtilString，以便在WL.NativePage中查看混合Android应用程序中的信号强度，但我什么都没得到。
我在真实设备上测试了应用程序，更改为2G，3G和LTE，但我没有收到任何内容。我已经实现了一个名为onSignalStrengthsChanged的函数，但我无法弄清楚出了什么问题。
在LogCat中没有任何兴趣;也许onSignalStrengthsChanged永远不会被解雇。
package com.AndroidShowNativePage;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.app.Activity;
import android.content.Context;
import android.telephony.gsm.GsmCellLocation;
import android.telephony.PhoneStateListener;
import android.telephony.SignalStrength;
import android.telephony.TelephonyManager;
import android.telephony.CellLocation;
import android.webkit.WebView;
public class HelloNative extends Activity {
EditText editText = null;
EditText editText1 = null;
String myUtilString = "";
private TelephonyManager tm ;
private DroidPhoneStateListener listener;
private GsmCellLocation location;
public void GSM(Activity activity, WebView view) {
tm = (TelephonyManager) activity
.getSystemService(Context.TELEPHONY_SERVICE);
listener = new DroidPhoneStateListener(view);
location = new GsmCellLocation();
}
public void listen() {
tm.listen(listener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);
//TODO
//tm.listen(listener, PhoneStateListener.LISTEN_SIGNAL_STRENGTH);
//tm.listen(listener, PhoneStateListener.LISTEN_CELL_LOCATION);
//tm.listen(listener, PhoneStateListener.LISTEN_DATA_ACTIVITY);
}
public void unlisten() {
tm.listen(listener, PhoneStateListener.LISTEN_NONE);
}
public int getCid() {
return location.getCid();
}
public int getLac() {
return location.getLac();
}
/*
* ???? public int getPsc() { return location.getPsc(); }
*/
private class DroidPhoneStateListener extends PhoneStateListener {
private WebView view;
DroidPhoneStateListener(WebView view) {
this.view = view;
}
@Override
public void onCellLocationChanged(CellLocation location) {
myUtilString = ( "onCellLocationChanged: " + location.toString());
// view.loadUrl("javascript:droid.Accelerometer.onUpdate();
}
@Override
public void onDataConnectionStateChanged(int state, int networkType) {
myUtilString =( "onDataConnectionStateChanged: " + state + ":" + networkType);
}
@Override
public void onSignalStrengthsChanged(SignalStrength s) {
super.onSignalStrengthsChanged(s);
String r = s.getGsmSignalStrength() + ":" + s.getCdmaDbm() + ":"
+ s.getCdmaEcio() + ":" + s.getEvdoDbm() + ":"
+ s.getEvdoEcio() + ":" + s.getEvdoSnr() + ":"
+ s.getGsmBitErrorRate();
myUtilString = ("hello Change('" + r.toString()+ "');");
}
@Override
public void onSignalStrengthChanged(int asu) {
myUtilString = ( "onSignalStrengthChanged: " + asu);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String name = getIntent().getStringExtra("nameParam");
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
setContentView(linearLayout);
TextView textView1 = new TextView(this);
textView1.setText("Name received from JavaScript :: " + name);
TextView textView2 = new TextView(this);
textView2.setText("Enter the phone number");
editText = new EditText(this);
editText.setText("1234567890");
editText1 = new EditText(this);
editText1.setText("any measure on dBd");
Button submitButton = new Button(this);
submitButton.setText("Return to the Web App");
submitButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String phoneNumber = editText.getText().toString();
Intent phoneNumberInfo = new Intent();
phoneNumberInfo.putExtra("phoneNumber", phoneNumber);
setResult(RESULT_OK, phoneNumberInfo);
finish();
}
});
Button submitMeasure = new Button(this);
submitMeasure.setText("Go measure");
submitMeasure.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
editText1.setText( myUtilString );
}
});
linearLayout.addView(textView1);
linearLayout.addView(textView2);
linearLayout.addView(editText);
linearLayout.addView(submitButton);
linearLayout.addView(submitMeasure);
linearLayout.addView(editText1);
}
}
这里是LogCat：
05-08 12:06:30.140: D/SoftKeyboardDetect(1078): Ignore this event
05-08 12:06:31.190: D/WLDroidGap(1078): Started copying files to local storage...
05-08 12:06:48.800: D/dalvikvm(1078): GC_FOR_ALLOC freed 494K, 15% free 3318K/3896K, paused 35ms, total 35ms
05-08 12:06:59.950: D/dalvikvm(1078): GC_FOR_ALLOC freed 370K, 16% free 3319K/3908K, paused 34ms, total 34ms
05-08 12:07:10.540: D/WLDroidGap(1078): Finished copying files to local storage...
05-08 12:07:10.550: D/WLDroidGap(1078): no need to check web resource integrity
05-08 12:07:10.690: D/CordovaWebView(1078): >>> loadUrl(file:///data/data/com.AndroidShowNativePage/files/www/skinLoader.html)
05-08 12:07:10.690: D/PluginManager(1078): init()
05-08 12:07:10.730: D/CordovaWebView(1078): >>> loadUrlNow()
05-08 12:07:12.560: D/CordovaActivity(1078): onMessage(onPageStarted,file:///data/data/com.AndroidShowNativePage/files/www/skinLoader.html)
05-08 12:07:14.610: D/CordovaWebViewClient(1078): onPageFinished(file:///data/data/com.AndroidShowNativePage/files/www/skinLoader.html)
05-08 12:07:14.610: D/CordovaActivity(1078): onMessage(onPageFinished,file:///data/data/com.AndroidShowNativePage/files/www/skinLoader.html)
05-08 12:07:16.650: D/CordovaActivity(1078): onMessage(spinner,stop)
05-08 12:07:17.250: D/CordovaActivity(1078): onMessage(spinner,stop)
05-08 12:07:17.260: W/PluginManager(1078): THREAD WARNING: exec() call to App.show blocked the main thread for 21ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:07:17.400: D/CordovaNetworkManager(1078): Connection Type: 3g
05-08 12:07:17.400: D/CordovaActivity(1078): onMessage(networkconnection,3g)
05-08 12:07:17.420: D/CordovaNetworkManager(1078): Connection Type: 3g
05-08 12:07:17.660: D/dalvikvm(1078): GC_FOR_ALLOC freed 458K, 14% free 3365K/3908K, paused 36ms, total 39ms
05-08 12:07:17.710: W/PluginManager(1078): THREAD WARNING: exec() call to Utils.writePref blocked the main thread for 95ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:07:17.780: W/PluginManager(1078): THREAD WARNING: exec() call to Utils.writePref blocked the main thread for 35ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:07:17.790: D/CordovaWebView(1078): >>> loadUrl(file:///data/data/com.AndroidShowNativePage/files/www/default/AndroidShowNativePage.html)
05-08 12:07:17.810: D/PluginManager(1078): init()
05-08 12:07:17.810: W/PluginManager(1078): THREAD WARNING: exec() call to Utils.loadSkin blocked the main thread for 29ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:07:17.820: D/CordovaWebView(1078): >>> loadUrlNow()
05-08 12:07:18.020: D/CordovaActivity(1078): onMessage(onPageStarted,file:///data/data/com.AndroidShowNativePage/files/www/default/AndroidShowNativePage.html)
05-08 12:07:23.320: D/CordovaActivity(1078): onMessage(spinner,stop)
05-08 12:07:23.370: D/CordovaNetworkManager(1078): Connection Type: 3g
05-08 12:07:23.400: D/CordovaNetworkManager(1078): Connection Type: 3g
05-08 12:07:23.400: D/CordovaActivity(1078): onMessage(networkconnection,3g)
05-08 12:07:24.010: D/CordovaWebViewClient(1078): onPageFinished(file:///data/data/com.AndroidShowNativePage/files/www/default/AndroidShowNativePage.html)
05-08 12:07:24.010: D/CordovaActivity(1078): onMessage(onPageFinished,file:///data/data/com.AndroidShowNativePage/files/www/default/AndroidShowNativePage.html)
05-08 12:07:24.240: I/Choreographer(1078): Skipped 32 frames! The application may be doing too much work on its main thread.
05-08 12:07:24.440: D/AndroidShowNativePage(1078): wlclient init started
05-08 12:07:24.530: D/AndroidShowNativePage(1078): Read cookies: null
05-08 12:07:24.560: D/AndroidShowNativePage(1078): CookieMgr read cookies: {}
05-08 12:07:24.870: W/AndroidShowNativePage(1078): Your application is using the WL.OptionsMenu API. Note that, if your application targets Android 3.0 (API level 11) or higher, WL.OptionsMenu might have no effect, depending on the device.
05-08 12:07:24.970: W/PluginManager(1078): THREAD WARNING: exec() call to DeviceAuth.getDeviceUUID blocked the main thread for 24ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:07:25.000: D/AndroidShowNativePage(1078): addDeviceIDHeader deviceIDSuccessCallback
05-08 12:07:25.050: W/PluginManager(1078): THREAD WARNING: exec() call to Utils.writePref blocked the main thread for 21ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:07:25.080: D/AndroidShowNativePage(1078): connectOnStartup finalizeInit
05-08 12:07:25.190: D/AndroidShowNativePage(1078): before: app init onSuccess
05-08 12:07:25.310: D/AndroidShowNativePage(1078): after: app init onSuccess
05-08 12:07:25.350: D/AndroidShowNativePage(1078): added onPause event handler
05-08 12:07:25.370: D/AndroidShowNativePage(1078): wlclient init success
05-08 12:26:11.550: D/CordovaActivity(1078): Paused the application!
05-08 12:26:11.550: D/CordovaWebView(1078): Handle the pause
05-08 12:26:11.650: W/PluginManager(1078): THREAD WARNING: exec() call to NativePage.show blocked the main thread for 151ms. Plugin should use CordovaInterface.getThreadPool().
05-08 12:26:12.620: I/Choreographer(1078): Skipped 60 frames! The application may be doing too much work on its main thread.
05-08 12:26:13.040: D/AndroidShowNativePage(1078): Flush called
05-08 12:26:17.070: I/Choreographer(1078): Skipped 75 frames! The application may be doing too much work on its main thread.
答案 0 :(得分：0)
您是否在Eclipse控制台或LogCat视图中出现任何错误？提供LogCat的输出，这应该有所帮助。使用此信息编辑问题。
以下权限也需要添加到AndroidManifest.xml中：
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
修改
还有以下教程可以获得信号强度：http://www.firstdroid.com/2010/05/12/get-provider-gsm-signal-strength/
我已经关注它了，它在Android模拟器中对我有用 这是我的Java实现：
package com.testapp;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.telephony.PhoneStateListener;
import android.telephony.SignalStrength;
import android.telephony.TelephonyManager;
import android.widget.Toast;
public class HelloNative extends Activity {
TelephonyManager tm;
MyPhoneStateListener MyListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
MyListener = new MyPhoneStateListener();
tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(MyListener ,PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
setContentView(linearLayout);
Button submitButton = new Button(this);
submitButton.setText("Return to the Web App");
submitButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setResult(RESULT_OK);
finish();
};
});
linearLayout.addView(submitButton);
}
private class MyPhoneStateListener extends PhoneStateListener
{
/* Get the Signal strength from the provider, each time there is an update */
@Override
public void onSignalStrengthsChanged(SignalStrength signalStrength)
{
super.onSignalStrengthsChanged(signalStrength);
Toast.makeText(getApplicationContext(), "Signal strength is: "
+ String.valueOf(signalStrength.getGsmSignalStrength()), Toast.LENGTH_SHORT).show();
}
};
}