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Show function data without blinking with Volley in Android Studio

Recently I am working on Android project with Volley for registration and for further operation, I can make function for insertion and other one is for retrieval data. When insert button click 'Insert' function called and data has been inserted to database through volley, and at the same time retrieval function also called. But when USER clicked the button and function called then data showed(database inserted data) with blinking effect, look like loading.
I want to get rid of that effect. I want to show data smoothly without any blinking effect. I do searching but can not find any solution. Please suggest me solution I'am newbie so kindly short and efficient required.
package com.darkcoderz.parsejson;
public class MainActivity extends AppCompatActivity {
private Context mContext;
private Activity mActivity;
//private CoordinatorLayout mCLayout;
private TextView mTextView;
private String mJSONURLString = "http://192.168.10.4/volley/api.php";
String url = "http://192.168.10.4/volley/register.php";
private EditText sms;
private Button sendsms;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Get the application context
//mContext = getApplicationContext();
//mActivity = MainActivity.this;
// Get the widget reference from XML layout
//mCLayout = (CoordinatorLayout) findViewById(R.id.coordinator_layout);
mTextView = (TextView) findViewById(R.id.tv);
sms = (EditText) findViewById(R.id.sms);
sendsms = (Button) findViewById(R.id.sendsms);
final Handler firesms = new Handler();
firesms.post(new Runnable() {
#Override
public void run() {
getdata();
firesms.postDelayed(this, 100);
}
});
sendsms.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
reg();
}
});
getdata();
}
// insert
public void reg()
{
final String msg = sms.getText().toString();
StringRequest stringreq = new StringRequest(Request.Method.POST, url, new Response.Listener<String>() {
#Override
public void onResponse(String response) {
if (response.equals("success"))
{
Toast.makeText(MainActivity.this, "Registration Successfull!", Toast.LENGTH_SHORT).show();
}
else
{
Toast.makeText(MainActivity.this, "Username Already Exist!", Toast.LENGTH_SHORT).show();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this, "Great Error "+error.toString(), Toast.LENGTH_LONG).show();
}
})
{
#Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String,String> params = new HashMap<>();
params.put("sms",msg);
return params;
}
};
RequestQueue reqest = Volley.newRequestQueue(MainActivity.this);
reqest.add(stringreq);
}
private void getdata() {
// Empty the TextView
mTextView.setText("");
// Initialize a new RequestQueue instance
RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
// Initialize a new JsonArrayRequest instance
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, mJSONURLString, null, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
// Do something with response
//mTextView.setText(response.toString());
// Process the JSON
try{
// Loop through the array elements
for(int i=0;i<response.length();i++){
// Get current json object
JSONObject student = response.getJSONObject(i);
// Get the current student (json object) data
// String firstName = student.getString("fname");
// String lastName = student.getString("lname");
String age = student.getString("email");
// Display the formatted json data in text view
mTextView.append("SMS : " + age);
mTextView.append("\n\n");
}
}catch (JSONException e){
e.printStackTrace();
}
}
},
new Response.ErrorListener(){
#Override
public void onErrorResponse(VolleyError error){
// Do something when error occurred
Toast.makeText(mContext, "Something Went Wrong", Toast.LENGTH_SHORT).show();
}
}
);
// Add JsonArrayRequest to the RequestQueue
requestQueue.add(jsonArrayRequest);
}
}

private void getdata() {
// Empty the TextView
mTextView.setText("");
// Initialize a new RequestQueue instance
RequestQueue requestQueue = Volley.newRequestQueue(MainActivity.this);
// Initialize a new JsonArrayRequest instance
JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(Request.Method.GET, mJSONURLString, null, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
//before parsing check your response is in JSONArray Format or JSONObject format
// Process the JSON
try{
}catch (JSONException e){
e.printStackTrace();
//print here to know JSONException if exists
Toast.makeText(mContext, "Exception"+e.toString(), Toast.LENGTH_SHORT).show();
}
}
}
},
new Response.ErrorListener(){
#Override
public void onErrorResponse(VolleyError error){
// Do something when error occurred
Toast.makeText(mContext, "Something Went Wrong", Toast.LENGTH_SHORT).show();
}
}
);
// Add JsonArrayRequest to the RequestQueue
requestQueue.add(jsonArrayRequest);
}

android studio getting data from php database and populating the activity

i'm trying to get the data from the database to fill the activity with them but i'm not getting anything this is the db code i have 2 Textvies 1 image view i'm trying to fill with the data i'm new to mobile programming so need help:
public void gettypedet(final int tid, final TextView ttitle, final ImageView timg, final TextView desc) {
String url = "http://192.168.0.114/mobileshop/product_typrbyid.php?id="+tid;
// Instantiate the RequestQueue.
RequestQueue queue = Volley.newRequestQueue(context);
// Request a json response from the provided URL.
JsonObjectRequest jsonRequest = new JsonObjectRequest(Request.Method.GET, url,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject prt) {
try {
String type=prt.getString("type");
int imgname=Integer.parseInt(prt.getString("imagename"));
String des=prt.getString("description");
ttitle.setText(type);
timg.setImageResource(imgname);
desc.setText(des);
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.i("error", error.toString());
}
});
// Add the request to the RequestQueue.
queue.add(jsonRequest);
}
this is my php code i tested it and it's working so shouldn't be the problem:
<?php
require_once("connection.php");
$id=$_GET["id"];
$q="Select * from product_type where id='$id'";
$res=mysqli_query($con,$q);
while($row=mysqli_fetch_assoc($res)){
$types[]=$row;
}
echo (json_encode($types));
mysqli_free_result($res);
?>
this is the activity code here not sure if i did something wrong:
public class ptype_detail extends Activity {
int kposition,tposition,id;
TextView ttitle,tdes;
ImageView timg;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ptype_detail);
tposition=(Integer)getIntent().getExtras().get("tpos");
kposition=(Integer)getIntent().getExtras().get("kpos");
if (kposition==0)
id=tposition+5;
else if(kposition==1)
id=tposition+18;
else if (kposition==2)
id=tposition+20;
else
id=tposition;
ttitle=(TextView)findViewById(R.id.title) ;
tdes=(TextView)findViewById(R.id.typedes);
timg=(ImageView)findViewById(R.id.titleimage);
shop db=new shop(this);
db.gettypedet(id,ttitle,timg,tdes);
}
}

I can't receive boolean sent from rest java ws to my android app as JSONObject

Well, I get Validation:com.android.volley.ParseError: org.json.JSONException:value false of type java.jang.Boolean cannot be converted to JSONObject error whenever I try to receive a boolean value, that is sent by a REST web service, in my android app using volley's JSONObjectRequest format.
I know that using StringRequest will be the easy way to solve this but I really wonder if there's another way to solve this.
My guess is that the primitive boolean value is the problem because it is not equevalent to a json object. so the exeption is thrown in the onResponse(JSONObject response) volley method.
here's the java REST web service:
#POST
#Consumes(MediaType.APPLICATION_JSON)
#Produces(MediaType.APPLICATION_JSON)
public Boolean validate(CreditCard card) {
//instructions
if(/* some conditions */) {
cardList.put(card.getId(), card);
return true;
}
return false;
}
and the android app code:
public class MainActivity extends Activity implements View.OnClickListener {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
et_id = findViewById(R.id.id);
et_num = findViewById(R.id.number);
et_type = findViewById(R.id.type);
et_ctrlnb = findViewById(R.id.ctrlnum);
et_expd = findViewById(R.id.expdate);
b_validate = findViewById(R.id.validate);
b_validate.setOnClickListener(this);
}
#Override
public void onClick(View v) {
if (v == b_validate) {
String request_url = "http://192.168.191.1:8080/RESTCardValidator/rest/cardvalidator";
JSONObject cardDetails = new JSONObject();
try {
cardDetails.put("controlNumber", Integer.parseInt(et_ctrlnb.getText().toString()));
cardDetails.put("expiryDate", et_expd.getText().toString());
cardDetails.put("id", Long.parseLong(et_id.getText().toString()));
cardDetails.put("number", et_num.getText().toString());
cardDetails.put("type", et_type.getText().toString());
} catch (JSONException e) {
e.printStackTrace();
}
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, request_url, cardDetails,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
Toast.makeText(MainActivity.this, "Validation:" + response.toString(), Toast.LENGTH_LONG).show();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(MainActivity.this, "Validation:" + error.toString(), Toast.LENGTH_LONG).show();
}
});
Volley.newRequestQueue(this).add(request);
}
}
as you see in the image the value true/false is received
First Screenshot-
Second Screenshot -

How to call WooCommerce API from android studio using Volley library?

I am new to Android and I am using JAVA and Android studio. I have to use the WooCommerce API to get the list of all orders:
wp-json/wc/v2/orders
Is this possible using the volley library and if yes, how can I call this and get the response (I have my client_id and client_secret)?
Here is my activity page:
public class YourOrders extends AppCompatActivity {
private TextView textViewback;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_your_orders);
getSupportActionBar().hide();
textViewback = (TextView) findViewById(R.id.textViewback);
textViewback.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
finish();
}
});
}}

String url = "https://www.example.com/wp-json/wc/v2/orders?consumer_key=123&consumer_secret=abc";
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest
(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
textViewback.setText("Response: " + response.toString());
}
},
new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
// TODO: Handle error
}
});
// Access the RequestQueue through your singleton class.
MySingleton.getInstance(this).addToRequestQueue(jsonObjectRequest);

Want to move GET method inside POST, Volley

I want to move GET method inside (if) that located inside onResponse of POST request without calling URL again because once the user post edittext php file will echo json result that will show up inside listview in activity so if call URL again in other method nothing will show up, how can I do that please?
public class supportActivity extends AppCompatActivity implements View.OnClickListener{
private EditText ticketsupport;
private Button button;
private List<supportContent> con = new ArrayList<supportContent>();
private ListView supportlist;
private supportAdapter adapter;
private String ticketinput;
private String url = "http://10.0.3.2/aalm/getticket.php";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_support);
ticketsupport = (EditText)findViewById(R.id.insertticketnumber);
supportlist = (ListView)findViewById(R.id.supportlistview);
adapter = new supportAdapter(this, con);
supportlist.setAdapter(adapter);
button = (Button)findViewById(R.id.buttonsupprt);
button.setOnClickListener(this);
}
private void inquiry() {
ticketinput = ticketsupport.getText().toString().trim();
StringRequest stringRequest1 = new StringRequest(Request.Method.POST, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
if (response.trim().equals("responseticket")) {
showTicket();
} else {
Toast.makeText(supportActivity.this, "Check the number please", Toast.LENGTH_SHORT).show();
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(supportActivity.this, "something wrong" , Toast.LENGTH_SHORT).show();
}
}) {
#Override
protected Map<String,String> getParams() throws AuthFailureError{
Map<String,String> map = new HashMap<String,String>();
map.put("ticknumber", ticketinput);
return map;
}
};
RequestQueue requestQueue1 = Volley.newRequestQueue(getApplicationContext());
requestQueue1.add(stringRequest1);
}
private void showTicket(){
RequestQueue requestQueue2 = Volley.newRequestQueue(this);
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, url,
new Response.Listener<JSONObject>() {
#Override
public void onResponse(JSONObject response) {
try {
JSONArray jsonArray = response.getJSONArray("responseticket");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject ticket = jsonArray.getJSONObject(i);
supportContent support = new supportContent();
support.setTicketnumber(ticket.getString("ticketnumber"));
support.setSubject(ticket.getString("subject"));
support.setResponse(ticket.getString("response"));
con.add(support);
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("error", "Volley");
}
}
);
requestQueue2.add(jsonObjectRequest);
}
#Override
public void onDestroy(){
super.onDestroy();
}
#Override
public void onClick(View view){
inquiry();
}
}