在这里，我的代码可以运行到棉花糖设备，但是在我的Pie设备中，它无法运行。
我阅读了一份Google文档，发现从清单中删除了接收者标签并添加了活动，但是我不知道如何添加。
主要问题是，当我在脱机模式下添加值时，它将值存储在SQLite中，但是当返回联机模式时，它不会将SQLite数据发送到nogout设备上方的服务器。
这是我的活动：
pd.melt(id_vars=['a','b','c'],value_vars=['12/01/2018',
'12/02/2018','12/03/2018', etc.])
在清单文件上添加的是接收方：
broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
readFromLocalStorage();
}
};
buttonAdd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
SubmitMethode();
// addPremises();
relativeLayoutAdd.setVisibility(View.GONE);
linearLayoutRecycler.setVisibility(View.VISIBLE);
imageButtonPlus.setVisibility(View.VISIBLE);
}
});
}
private void SubmitMethode() {
preName = Objects.requireNonNull(editTextPremises.getText()).toString();
prewifiName = Objects.requireNonNull(editTextwifiName.getText()).toString();
prewifiUrl = Objects.requireNonNull(editTextwifiUrl.getText()).toString();
preserverUrl = Objects.requireNonNull(editTextserverUrl.getText()).toString();
preImage = getStringImage(bitmap);
Log.d("responseT",preName + "==" + prewifiName + "==" + prewifiUrl);
saveToAppServer(preName, prewifiName, prewifiUrl, preserverUrl, preImage);
editTextPremises.setText("");
editTextwifiName.setText("");
editTextwifiUrl.setText("");
editTextserverUrl.setText("");
textViewSelect.setText("Select Image");
}
private void readFromLocalStorage(){
sqPremisesList.clear();
DBHelper dbHelper = new DBHelper(this);
SQLiteDatabase sqLiteDatabase = dbHelper.getReadableDatabase();
Cursor cursor = dbHelper.readFromLocalDatabase(sqLiteDatabase);
while (cursor.moveToNext()){
String premisesName = cursor.getString(cursor.getColumnIndex(DBContact.PREMISES_NAME));
String premisesWifiName = cursor.getString(cursor.getColumnIndex(DBContact.PREMISES_WIFI_NAME));
String premisesWifiUrl = cursor.getString(cursor.getColumnIndex(DBContact.PREMISES_WIFIURL));
String premisesServerUrl = cursor.getString(cursor.getColumnIndex(DBContact.PREMISES_SERVERURL));
String premisesImagePath = cursor.getString(cursor.getColumnIndex(DBContact.PREMISES_IMAGEPATH));
int sync_status = cursor.getInt(cursor.getColumnIndex(DBContact.SYNC_STATUS));
sqPremisesList.add(new SqPremises(premisesName, premisesWifiName,
premisesWifiUrl, premisesServerUrl, premisesImagePath, sync_status));
}
//
sqPremisesAdapter.notifyDataSetChanged();
cursor.close();
/*TODO: // this is new line code*/
dbHelper.close();
}
private void saveToAppServer(final String pName, final String pWifiName, final String pWifiUrl,
final String pServerUrl, final String pImage){
if (checkNetworkConnection()){
progressDialog.setTitle("Adding....");
progressDialog.setMessage("please wait while we are waiting your premises");
progressDialog.show();
String Url = Constant.BASE_URL + "addpremises/";
HashMap<String, String> params = new HashMap<String, String>();
params.put("user", userID);
params.put("name", preName);
params.put("wifi_name", prewifiName);
params.put("online_url", prewifiUrl);
params.put("offline_url", preserverUrl);
params.put("image", preImage);
Log.d("responseV", String.valueOf(params));
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Url, new JSONObject(params),
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d("responseJ", String.valueOf(response));
progressDialog.dismiss();
try {
String statusObject = response.getString("status");
String msgObject = response.getString("msg");
if (statusObject.equals("200")) {
Toast.makeText(PremisesManagementActivity.this, msgObject, Toast.LENGTH_SHORT).show();
saveToLocalStorage(pName, pWifiName, pWifiUrl, pServerUrl, pImage, DBContact.SYNC_STATUS_OK);
linearLayoutAsk.setVisibility(View.GONE);
relativeLayoutAdd.setVisibility(View.GONE);
imageButtonPlus.setVisibility(View.VISIBLE);
linearLayoutRecycler.setVisibility(View.VISIBLE);
/* String value = "false";
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString("value",value);
editor.commit();*/
}else {
Toast.makeText(PremisesManagementActivity.this, msgObject, Toast.LENGTH_SHORT).show();
// linearLayoutAsk.setVisibility(View.VISIBLE);
// imageButtonPlus.setVisibility(View.VISIBLE);
// linearLayoutRecycler.setVisibility(View.GONE);
// relativeLayoutAdd.setVisibility(View.GONE);
saveToLocalStorage(pName, pWifiName, pWifiUrl, pServerUrl, pImage, DBContact.SYNC_STATUS_FAILED);
}
}catch (JSONException e){
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// error.printStackTrace();
saveToLocalStorage(pName, pWifiName, pWifiUrl, pServerUrl, pImage, DBContact.SYNC_STATUS_FAILED);
}
});
requestQueue.add(jsonObjectRequest);
// MySingleton.getInstance(PremisesManagementActivity.this).addToRequestQue(jsonObjectRequest);
}else {
saveToLocalStorage(pName, pWifiName, pWifiUrl,
pServerUrl, pImage, DBContact.SYNC_STATUS_FAILED);
}
}
private void saveToLocalStorage (String pName, String pWifiName, String pWifiUrl,
String pServerUrl,String pImage, int sync){
DBHelper dbHelper = new DBHelper(this);
SQLiteDatabase sqLiteDatabase = dbHelper.getWritableDatabase();
dbHelper.saveToLocalDatabase(pName, pWifiName, pWifiUrl, pServerUrl, pImage, sync , sqLiteDatabase);
readFromLocalStorage();
dbHelper.close();
}
//
@RequiresApi(api = Build.VERSION_CODES.O)
@Override
protected void onStart() {
super.onStart();
registerReceiver(broadcastReceiver, new IntentFilter(DBContact.UI_UPDATE_BROADCAST));
// IntentFilter filter = new IntentFilter(DBContact.UI_UPDATE_BROADCAST);
// registerReceiver(broadcastReceiver, filter, Manifest.permission.CHANGE_NETWORK_STATE, null);
// sendBroadcast();
}
@Override
protected void onPause() {
super.onPause();
unregisterReceiver(broadcastReceiver);
}
在这里，我要添加我的网络监视器文件：
<receiver android:name=".utils.NetworkMonitor">
<intent-filter>
<action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
</intent-filter>
</receiver>
如何解决此问题？我是广播接收器的初学者。
答案 0 :(得分：1)
我只在某些Android Pie项目上遇到过与网络通话相关的问题。
如果遇到与网络通话相关的问题，请在android:usesCleartextTraffic="true"文件的<application>标签中添加AndroidManifest.xml。这可能会解决您的Pie问题。