如何将地理围栏存储在磁盘中？ (android)
How to store geofence in disk? (android)
我在想办法存储我的应用程序创建的地理围栏时遇到问题，以便在我再次 运行 应用程序时加载它们。目的是显示用户创建的地理围栏列表。
我尝试使用 Java 的序列化对它们进行序列化，我还尝试使用 Gson 将它们转换为 Json 字符串。 Gson 的问题是当我尝试加载它们时，它给了我一条错误消息说 Geofence 不是 class。 （这是真的，它是一个接口）。
提前致谢。
PS：这是我的 class
中的一些代码
public class Manager implements ResultCallback<Status>, LocationListener {
// Tag para fazer debug
protected static final String MAN = "Manager";
protected static final String SMS = "eventSMS";
protected static final String RING = "eventRing";
private Context mAppContext;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
// Listas de Geofences
private TreeMap<String, Geofence> mGeofences;
private TreeMap<String, Event> mEvents;
private int mCounterActiveGeofences;
private PendingIntent mGeofencePendingIntent;
private Intent updateLocIntent;
/* Save */
private Gson gson;
private SharedPreferences prefs;
public Manager(Context context, GoogleApiClient googleApiClient){
mGeofences = new TreeMap<String, Geofence>();
mEvents = new TreeMap<String, Event>();
mGeofencePendingIntent = null;
mAppContext = context;
mGoogleApiClient = googleApiClient;
mCounterActiveGeofences = 0;
prefs = context.getSharedPreferences(Constants.Geofences, Context.MODE_PRIVATE);
gson = new Gson();
}
...
public void saveGeofences(){
String json;
Geofence geofence;
SharedPreferences.Editor editor = prefs.edit();
Log.d(MAN, "Saving Geofences...");
for (Map.Entry<String, Geofence> entry : mGeofences.entrySet()) {
geofence = mGeofences.get(entry.getKey());
json = gson.toJson(geofence);
editor.putString(geofence.getRequestId(), json);
Log.d(MAN, geofence.getRequestId() + " json: " + json);
}
editor.apply();
}
public void loadGeofences(){
Map<String, ?> keys = prefs.getAll();
Log.d(MAN, "Loading Geofences...");
for (Map.Entry<String, ?> entry : keys.entrySet()) {
String jsonString = prefs.getString(entry.getKey(), null);
Geofence geofence = gson.fromJson(jsonString, Geofence.class);
Log.d(MAN, geofence.getRequestId());
mGeofences.put(geofence.getRequestId(), geofence);
}
}
}
这是 LogCat:
09-09 21:37:16.148 18137-18137/? D/dalvikvm﹕ Late-enabling CheckJNI
09-09 21:37:17.515 18137-18137/? I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
09-09 21:37:17.515 18137-18137/? W/dalvikvm﹕ VFY: unable to resolve virtual method 614: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
09-09 21:37:17.515 18137-18137/? D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
09-09 21:37:17.515 18137-18137/? I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
09-09 21:37:17.515 18137-18137/? W/dalvikvm﹕ VFY: unable to resolve virtual method 636: Landroid/content/res/TypedArray;.getType (I)I
09-09 21:37:17.515 18137-18137/? D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
09-09 21:37:18.133 18137-18137/? D/GoogleAPIMsg﹕ Construcao do Client Google
09-09 21:37:18.164 18137-18137/? D/Manager﹕ Loading Geofences...
09-09 21:37:18.203 18137-18137/? D/AndroidRuntime﹕ Shutting down VM
09-09 21:37:18.203 18137-18137/? W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x419307c0)
09-09 21:37:18.234 18137-18137/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.smartlocation.wilcocsjrxxlxpto/com.smartlocation.wilcocsjrxxlxpto.HomeScreen}: java.lang.RuntimeException: Unable to invoke no-args constructor for interface com.google.android.gms.location.Geofence. Register an InstanceCreator with Gson for this type may fix this problem.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Unable to invoke no-args constructor for interface com.google.android.gms.location.Geofence. Register an InstanceCreator with Gson for this type may fix this problem.
at com.google.gson.internal.ConstructorConstructor.construct(ConstructorConstructor.java:210)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:186)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.google.gson.Gson.fromJson(Gson.java:696)
at com.smartlocation.wilcocsjrxxlxpto.core.Manager.loadGeofences(Manager.java:203)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.load(HomeScreen.java:252)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.onCreate(HomeScreen.java:66)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.google.gson.internal.UnsafeAllocator.newInstance(UnsafeAllocator.java:48)
at com.google.gson.internal.ConstructorConstructor.construct(ConstructorConstructor.java:207)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:186)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.google.gson.Gson.fromJson(Gson.java:696)
at com.smartlocation.wilcocsjrxxlxpto.core.Manager.loadGeofences(Manager.java:203)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.load(HomeScreen.java:252)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.onCreate(HomeScreen.java:66)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.InstantiationException: can't instantiate class com.google.android.gms.location.Geofence; abstract class or interface
at sun.misc.Unsafe.allocateInstance(Native Method)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.google.gson.internal.UnsafeAllocator.newInstance(UnsafeAllocator.java:48)
at com.google.gson.internal.ConstructorConstructor.construct(ConstructorConstructor.java:207)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:186)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.google.gson.Gson.fromJson(Gson.java:696)
at com.smartlocation.wilcocsjrxxlxpto.core.Manager.loadGeofences(Manager.java:203)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.load(HomeScreen.java:252)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.onCreate(HomeScreen.java:66)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
09-09 21:37:18.648 18137-18137/? I/Process﹕ Sending signal. PID: 18137 SIG: 9
行 Manager.java:203 是 "Geofence geofence = gson.fromJson(jsonString, Geofence.class);" 来自 class.
通过尝试序列化地理围栏生成的 json 字符串是：
Json: {"zzDK":"xxd","zzCY":1,"zzazj":-1,"zzaxB":39.2079714,"zzaxC":-8.9593288,"zzaxD":100.0,"zzaxE":0,"zzaxF":-1,"zzaxy":3,"zzaxA":1}
你不能直接做。您必须自己镜像地理围栏设置（纬度、经度、半径等）。
我在想办法存储我的应用程序创建的地理围栏时遇到问题，以便在我再次 运行 应用程序时加载它们。目的是显示用户创建的地理围栏列表。 我尝试使用 Java 的序列化对它们进行序列化，我还尝试使用 Gson 将它们转换为 Json 字符串。 Gson 的问题是当我尝试加载它们时，它给了我一条错误消息说 Geofence 不是 class。 （这是真的，它是一个接口）。
提前致谢。
PS：这是我的 class
中的一些代码public class Manager implements ResultCallback<Status>, LocationListener {
// Tag para fazer debug
protected static final String MAN = "Manager";
protected static final String SMS = "eventSMS";
protected static final String RING = "eventRing";
private Context mAppContext;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
// Listas de Geofences
private TreeMap<String, Geofence> mGeofences;
private TreeMap<String, Event> mEvents;
private int mCounterActiveGeofences;
private PendingIntent mGeofencePendingIntent;
private Intent updateLocIntent;
/* Save */
private Gson gson;
private SharedPreferences prefs;
public Manager(Context context, GoogleApiClient googleApiClient){
mGeofences = new TreeMap<String, Geofence>();
mEvents = new TreeMap<String, Event>();
mGeofencePendingIntent = null;
mAppContext = context;
mGoogleApiClient = googleApiClient;
mCounterActiveGeofences = 0;
prefs = context.getSharedPreferences(Constants.Geofences, Context.MODE_PRIVATE);
gson = new Gson();
}
...
public void saveGeofences(){
String json;
Geofence geofence;
SharedPreferences.Editor editor = prefs.edit();
Log.d(MAN, "Saving Geofences...");
for (Map.Entry<String, Geofence> entry : mGeofences.entrySet()) {
geofence = mGeofences.get(entry.getKey());
json = gson.toJson(geofence);
editor.putString(geofence.getRequestId(), json);
Log.d(MAN, geofence.getRequestId() + " json: " + json);
}
editor.apply();
}
public void loadGeofences(){
Map<String, ?> keys = prefs.getAll();
Log.d(MAN, "Loading Geofences...");
for (Map.Entry<String, ?> entry : keys.entrySet()) {
String jsonString = prefs.getString(entry.getKey(), null);
Geofence geofence = gson.fromJson(jsonString, Geofence.class);
Log.d(MAN, geofence.getRequestId());
mGeofences.put(geofence.getRequestId(), geofence);
}
}
}
这是 LogCat:
09-09 21:37:16.148 18137-18137/? D/dalvikvm﹕ Late-enabling CheckJNI
09-09 21:37:17.515 18137-18137/? I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getChangingConfigurations, referenced from method android.support.v7.internal.widget.TintTypedArray.getChangingConfigurations
09-09 21:37:17.515 18137-18137/? W/dalvikvm﹕ VFY: unable to resolve virtual method 614: Landroid/content/res/TypedArray;.getChangingConfigurations ()I
09-09 21:37:17.515 18137-18137/? D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
09-09 21:37:17.515 18137-18137/? I/dalvikvm﹕ Could not find method android.content.res.TypedArray.getType, referenced from method android.support.v7.internal.widget.TintTypedArray.getType
09-09 21:37:17.515 18137-18137/? W/dalvikvm﹕ VFY: unable to resolve virtual method 636: Landroid/content/res/TypedArray;.getType (I)I
09-09 21:37:17.515 18137-18137/? D/dalvikvm﹕ VFY: replacing opcode 0x6e at 0x0002
09-09 21:37:18.133 18137-18137/? D/GoogleAPIMsg﹕ Construcao do Client Google
09-09 21:37:18.164 18137-18137/? D/Manager﹕ Loading Geofences...
09-09 21:37:18.203 18137-18137/? D/AndroidRuntime﹕ Shutting down VM
09-09 21:37:18.203 18137-18137/? W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x419307c0)
09-09 21:37:18.234 18137-18137/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.smartlocation.wilcocsjrxxlxpto/com.smartlocation.wilcocsjrxxlxpto.HomeScreen}: java.lang.RuntimeException: Unable to invoke no-args constructor for interface com.google.android.gms.location.Geofence. Register an InstanceCreator with Gson for this type may fix this problem.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2339)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.RuntimeException: Unable to invoke no-args constructor for interface com.google.android.gms.location.Geofence. Register an InstanceCreator with Gson for this type may fix this problem.
at com.google.gson.internal.ConstructorConstructor.construct(ConstructorConstructor.java:210)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:186)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.google.gson.Gson.fromJson(Gson.java:696)
at com.smartlocation.wilcocsjrxxlxpto.core.Manager.loadGeofences(Manager.java:203)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.load(HomeScreen.java:252)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.onCreate(HomeScreen.java:66)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.google.gson.internal.UnsafeAllocator.newInstance(UnsafeAllocator.java:48)
at com.google.gson.internal.ConstructorConstructor.construct(ConstructorConstructor.java:207)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:186)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.google.gson.Gson.fromJson(Gson.java:696)
at com.smartlocation.wilcocsjrxxlxpto.core.Manager.loadGeofences(Manager.java:203)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.load(HomeScreen.java:252)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.onCreate(HomeScreen.java:66)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.InstantiationException: can't instantiate class com.google.android.gms.location.Geofence; abstract class or interface
at sun.misc.Unsafe.allocateInstance(Native Method)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.google.gson.internal.UnsafeAllocator.newInstance(UnsafeAllocator.java:48)
at com.google.gson.internal.ConstructorConstructor.construct(ConstructorConstructor.java:207)
at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:186)
at com.google.gson.Gson.fromJson(Gson.java:810)
at com.google.gson.Gson.fromJson(Gson.java:775)
at com.google.gson.Gson.fromJson(Gson.java:724)
at com.google.gson.Gson.fromJson(Gson.java:696)
at com.smartlocation.wilcocsjrxxlxpto.core.Manager.loadGeofences(Manager.java:203)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.load(HomeScreen.java:252)
at com.smartlocation.wilcocsjrxxlxpto.HomeScreen.onCreate(HomeScreen.java:66)
at android.app.Activity.performCreate(Activity.java:5133)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
at android.app.ActivityThread.access0(ActivityThread.java:153)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5289)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
at dalvik.system.NativeStart.main(Native Method)
09-09 21:37:18.648 18137-18137/? I/Process﹕ Sending signal. PID: 18137 SIG: 9
行 Manager.java:203 是 "Geofence geofence = gson.fromJson(jsonString, Geofence.class);" 来自 class.
通过尝试序列化地理围栏生成的 json 字符串是：
Json: {"zzDK":"xxd","zzCY":1,"zzazj":-1,"zzaxB":39.2079714,"zzaxC":-8.9593288,"zzaxD":100.0,"zzaxE":0,"zzaxF":-1,"zzaxy":3,"zzaxA":1}
你不能直接做。您必须自己镜像地理围栏设置（纬度、经度、半径等）。