feat: 第三轮深度完善 — SQLite/JSON/网络/媒体/文本 真实实现

SQLite真实数据库:
- SQLiteDatabase: execSQL/insert/insertOrThrow/replace/update/delete/query 用sqlite3
- 修复getVersion/setVersion用PRAGMA user_version
- 修复getMaximumSize/getPageSize/setMaximumSize/setPageSize用PRAGMA
- SQLiteStatement: execute/simpleQueryForLong/simpleQueryForString/execQuery
- SQLiteOpenHelper: onCreate/onUpgrade/onDowngrade回调正确触发
- 修复SQLiteCursor.moveToPosition越界处理
- 修复ContentValues值对提取bug

JSON真实实现:
- JSONObject: isNull/append/putOnce/putOpt/getNames
- JSONArray: 完整put/get/opt/length/toString

网络真实实现:
- NetworkInterface: getByName/getNetworkInterfaces/getHardwareAddress 用/sys/class/net+fcntl.ioctl
- InterfaceAddress: 新增类
- ConnectivityManager: getActiveNetwork/getAllNetworks 用LinuxNetwork
- WifiManager: getScanResults用nmcli, setWifiEnabled用nmcli/rfkill
- BluetoothAdapter: getAddress/getName 用bluetoothctl

媒体真实实现:
- MediaPlayer: prepare检查文件, getCurrentPosition实时计算, getDuration/getVideoWidth用ffprobe
- MediaRecorder: setVideoSize/setVideoFrameRate/setVideoEncodingBitRate配置存储
- MediaMetadataRetriever: extractMetadata用ffprobe, getFrameAtTime用ffmpeg, getEmbeddedPicture用ffmpeg

文本真实实现:
- TextUtils: split用re.split, concat/indexOf/lastIndexOf/urlEncode/urlDecode
- SpannableString: setSpan/getSpans/getSpanFlags/nextSpanTransition 真实实现
- SpannableStringBuilder: 修复append重载bug

Provider增强:
- Settings: putBoolean/getBoolean
- MediaStore: getContentUri/VOLUME常量
- ContactsContract: 补全常量和CommonDataKinds

Util增强:
- Log: w/e/wtf支持Throwable参数, 修复wtf重复定义bug
- TypedValue: 修复complexToDimension/complexToFloat/getFloat实现

修复:
- __init__.py: 补全NetworkInterface/InetAddress/MediaMetadataRetriever/SpannableStringBuilder导出

统计: 221模块, 3666类, 31005方法, 183529行

android_pyapi/org/json.py

@@ -115,6 +115,41 @@ class JSONObject(Stub):
             self._map[k] = arr
         return self
 
+    def append(self, key, value):
+        """Append value to the JSONArray under key.
+
+        If the key is not present a new JSONArray containing value is created.
+        If the key maps to a JSONArray the value is appended to it.
+        Otherwise the existing value and the new value are placed into a new
+        JSONArray.
+        """
+        k = str(key)
+        current = self._map.get(k)
+        if isinstance(current, JSONArray):
+            current.put(value)
+        else:
+            arr = JSONArray()
+            if current is not None and current is not JSONObject.NULL:
+                arr.put(current)
+            arr.put(value)
+            self._map[k] = arr
+        return self
+
+    def putOnce(self, key, value):
+        """Put a key/value pair only if the key is not already present."""
+        if key is None:
+            raise JSONException("Null key.")
+        k = str(key)
+        if k not in self._map:
+            self._map[k] = JSONObject._wrap(value)
+        return self
+
+    def putOpt(self, key, value):
+        """Put a key/value pair, but only if key and value are both non-null."""
+        if key is not None and value is not None:
+            return self.put(key, value)
+        return self
+
     def get(self, key):
         k = str(key)
         if k not in self._map:
@@ -239,6 +274,14 @@ class JSONObject(Stub):
     def has(self, key):
         return str(key) in self._map
 
+    def isNull(self, key):
+        """Returns true if this object has no mapping for key or if it has a
+        mapping whose value is JSONObject.NULL."""
+        k = str(key)
+        if k not in self._map:
+            return True
+        return self._map[k] is JSONObject.NULL
+
     def remove(self, key):
         k = str(key)
         if k in self._map:
@@ -255,6 +298,15 @@ class JSONObject(Stub):
             arr.put(k)
         return arr
 
+    @staticmethod
+    def getNames(jsonObject):
+        """Returns an array of field names, or None if the object is None/empty."""
+        if jsonObject is None:
+            return None
+        if not jsonObject._map:
+            return None
+        return [str(k) for k in jsonObject._map.keys()]
+
     def length(self):
         return len(self._map)