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datomnurdindatomnurdin
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-33
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‎.idea/misc.xml

+1-1
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‎app/src/main/AndroidManifest.xml

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@@ -12,13 +12,15 @@
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android:roundIcon="@mipmap/ic_launcher_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".MainActivity">
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<activity android:name=".ListActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<activity android:name=".CreateActivity" />
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<activity android:name=".UpdateActivity"></activity>
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</application>
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</manifest>

‎app/src/main/java/com/deepagi/androidtodolist/App.java

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package com.deepagi.androidtodolist;
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public class App {
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public static final String URL_CREATE="http://demo.revivalx.com/todolist-api/create_task.php";
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public static final String URL_GET_ALL = "http://demo.revivalx.com/todolist-api/get_all_tasks.php";
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public static final String URL_GET_DETAIL = "http://demo.revivalx.com/todolist-api/get_task_details.php?taskId=";
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public static final String URL_UPDATE = "http://demo.revivalx.com/todolist-api/update_task.php?taskId=";
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public static final String URL_DELETE = "http://demo.revivalx.com/todolist-api/delete_task.php?taskId=";
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public static final String KEY_ID = "taskId";
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public static final String KEY_NAME = "name";
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public static final String KEY_DESCRIPTION = "description";
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public static final String TAG_JSON_ARRAY="tasks";
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public static final String TAG_JSON_DETAIL="task";
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public static final String TAG_ID = "taskId";
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public static final String TAG_NAME = "name";
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public static final String TAG_DESCRIPTION = "description";
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public static final String ID = "taskId";
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}

‎app/src/main/java/com/deepagi/androidtodolist/CreateActivity.java

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package com.deepagi.androidtodolist;
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import android.app.ProgressDialog;
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import android.content.Intent;
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import android.os.AsyncTask;
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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.Toast;
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import java.util.HashMap;
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public class CreateActivity extends AppCompatActivity implements View.OnClickListener{
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//Defining views
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private EditText editTextName;
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private EditText editTextDesription;
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private Button buttonAdd;
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private Button buttonView;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_create);
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//Initializing views
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editTextName = (EditText) findViewById(R.id.txtName);
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editTextDesription = (EditText) findViewById(R.id.txtDescription);
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buttonAdd = (Button) findViewById(R.id.btnCreate);
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buttonView = (Button) findViewById(R.id.btnBack);
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//Setting listeners to button
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buttonAdd.setOnClickListener(this);
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buttonView.setOnClickListener(this);
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}
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//Adding a task
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private void addTask(){
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final String name = editTextName.getText().toString().trim();
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final String description = editTextDesription.getText().toString().trim();
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class AddTask extends AsyncTask<Void,Void,String> {
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ProgressDialog loading;
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@Override
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protected void onPreExecute() {
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super.onPreExecute();
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loading = ProgressDialog.show(CreateActivity.this,"Adding...","Wait...",false,false);
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}
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@Override
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protected void onPostExecute(String s) {
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super.onPostExecute(s);
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loading.dismiss();
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Toast.makeText(CreateActivity.this,s,Toast.LENGTH_LONG).show();
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}
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@Override
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protected String doInBackground(Void... v) {
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HashMap<String,String> params = new HashMap<>();
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params.put(App.KEY_NAME,name);
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params.put(App.KEY_DESCRIPTION,description);
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RequestHandler rh = new RequestHandler();
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String res = rh.sendPostRequest(App.URL_CREATE, params);
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return res;
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}
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}
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AddTask ae = new AddTask();
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ae.execute();
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}
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@Override
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public void onClick(View v) {
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if(v == buttonAdd){
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addTask();
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startActivity(new Intent(CreateActivity.this,ListActivity.class));
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}
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if(v == buttonView){
89+
startActivity(new Intent(this,ListActivity.class));
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}
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}
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}

‎app/src/main/java/com/deepagi/androidtodolist/ListActivity.java

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package com.deepagi.androidtodolist;
2+
3+
import android.app.ProgressDialog;
4+
import android.content.Intent;
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import android.os.AsyncTask;
6+
import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.Button;
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import android.widget.ListAdapter;
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import android.widget.ListView;
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import android.widget.SimpleAdapter;
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import org.json.JSONArray;
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import org.json.JSONException;
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import org.json.JSONObject;
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import java.util.ArrayList;
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import java.util.HashMap;
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public class ListActivity extends AppCompatActivity implements ListView.OnItemClickListener {
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private ListView listView;
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private String JSON_STRING;
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private Button buttonAdd;
27+
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@Override
29+
protected void onCreate(Bundle savedInstanceState) {
30+
super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_list);
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listView = (ListView) findViewById(R.id.lv_task);
33+
listView.setOnItemClickListener(this);
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getJSON();
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buttonAdd = (Button) findViewById(R.id.btnCreate);
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buttonAdd.setOnClickListener(new View.OnClickListener() {
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public void onClick(View arg0) {
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Intent createActivity = new Intent(getApplicationContext(), CreateActivity.class);
42+
startActivity(createActivity);
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}
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});
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}
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private void showTask(){
50+
JSONObject jsonObject = null;
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ArrayList<HashMap<String,String>> list = new ArrayList<HashMap<String, String>>();
52+
try {
53+
jsonObject = new JSONObject(JSON_STRING);
54+
JSONArray result = jsonObject.getJSONArray(App.TAG_JSON_ARRAY);
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for(int i = 0; i<result.length(); i++){
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JSONObject jo = result.getJSONObject(i);
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String id = jo.getString(App.TAG_ID);
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String name = jo.getString(App.TAG_NAME);
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HashMap<String,String> tasks = new HashMap<>();
62+
tasks.put(App.TAG_ID,id);
63+
tasks.put(App.TAG_NAME,name);
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list.add(tasks);
65+
}
66+
67+
} catch (JSONException e) {
68+
e.printStackTrace();
69+
}
70+
71+
ListAdapter adapter = new SimpleAdapter(
72+
ListActivity.this, list, R.layout.list_item,
73+
new String[]{App.TAG_NAME},
74+
new int[]{R.id.name});
75+
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listView.setAdapter(adapter);
77+
}
78+
79+
private void getJSON(){
80+
class GetJSON extends AsyncTask<Void,Void,String> {
81+
82+
ProgressDialog loading;
83+
@Override
84+
protected void onPreExecute() {
85+
super.onPreExecute();
86+
loading = ProgressDialog.show(ListActivity.this,"Fetching Data","Wait...",false,false);
87+
}
88+
89+
@Override
90+
protected void onPostExecute(String s) {
91+
super.onPostExecute(s);
92+
loading.dismiss();
93+
JSON_STRING = s;
94+
showTask();
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}
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@Override
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protected String doInBackground(Void... params) {
99+
RequestHandler rh = new RequestHandler();
100+
String s = rh.sendGetRequest(App.URL_GET_ALL);
101+
return s;
102+
}
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}
104+
GetJSON gj = new GetJSON();
105+
gj.execute();
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}
107+
108+
@Override
109+
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
110+
Intent intent = new Intent(this, UpdateActivity.class);
111+
HashMap<String,String> map =(HashMap)parent.getItemAtPosition(position);
112+
String taskId = map.get(App.TAG_ID).toString();
113+
intent.putExtra(App.ID,taskId);
114+
startActivity(intent);
115+
}
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}

‎app/src/main/java/com/deepagi/androidtodolist/MainActivity.java

-13
This file was deleted.

‎app/src/main/java/com/deepagi/androidtodolist/RequestHandler.java

+122
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1+
package com.deepagi.androidtodolist;
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import java.io.BufferedReader;
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import java.io.BufferedWriter;
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import java.io.InputStreamReader;
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import java.io.OutputStream;
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import java.io.OutputStreamWriter;
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import java.io.UnsupportedEncodingException;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLEncoder;
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import java.util.HashMap;
13+
import java.util.Map;
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import javax.net.ssl.HttpsURLConnection;
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17+
public class RequestHandler {
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19+
//Method to send httpPostRequest
20+
//This method is taking two arguments
21+
//First argument is the URL of the script to which we will send the request
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//Other is an HashMap with name value pairs containing the data to be send with the request
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public String sendPostRequest(String requestURL,
24+
HashMap<String, String> postDataParams) {
25+
URL url;
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//StringBuilder object to store the message retrieved from the server
28+
StringBuilder sb = new StringBuilder();
29+
try {
30+
//Initializing Url
31+
url = new URL(requestURL);
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//Creating an httmlurl connection
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HttpURLConnection conn = (HttpURLConnection) url.openConnection();
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//Configuring connection properties
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conn.setReadTimeout(15000);
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conn.setConnectTimeout(15000);
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conn.setRequestMethod("POST");
40+
conn.setDoInput(true);
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conn.setDoOutput(true);
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//Creating an output stream
44+
OutputStream os = conn.getOutputStream();
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//Writing parameters to the request
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//We are using a method getPostDataString which is defined below
48+
BufferedWriter writer = new BufferedWriter(
49+
new OutputStreamWriter(os, "UTF-8"));
50+
writer.write(getPostDataString(postDataParams));
51+
52+
writer.flush();
53+
writer.close();
54+
os.close();
55+
int responseCode = conn.getResponseCode();
56+
57+
if (responseCode == HttpsURLConnection.HTTP_OK) {
58+
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BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream()));
60+
sb = new StringBuilder();
61+
String response;
62+
//Reading server response
63+
while ((response = br.readLine()) != null){
64+
sb.append(response);
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}
66+
}
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68+
} catch (Exception e) {
69+
e.printStackTrace();
70+
}
71+
return sb.toString();
72+
}
73+
74+
public String sendGetRequest(String requestURL){
75+
StringBuilder sb =new StringBuilder();
76+
try {
77+
URL url = new URL(requestURL);
78+
HttpURLConnection con = (HttpURLConnection) url.openConnection();
79+
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
80+
81+
String s;
82+
while((s=bufferedReader.readLine())!=null){
83+
sb.append(s+"\n");
84+
}
85+
}catch(Exception e){
86+
}
87+
return sb.toString();
88+
}
89+
90+
public String sendGetRequestParam(String requestURL, String id){
91+
StringBuilder sb =new StringBuilder();
92+
try {
93+
URL url = new URL(requestURL+id);
94+
HttpURLConnection con = (HttpURLConnection) url.openConnection();
95+
BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(con.getInputStream()));
96+
97+
String s;
98+
while((s=bufferedReader.readLine())!=null){
99+
sb.append(s+"\n");
100+
}
101+
}catch(Exception e){
102+
}
103+
return sb.toString();
104+
}
105+
106+
private String getPostDataString(HashMap<String, String> params) throws UnsupportedEncodingException {
107+
StringBuilder result = new StringBuilder();
108+
boolean first = true;
109+
for (Map.Entry<String, String>entry : params.entrySet()) {
110+
if (first)
111+
first = false;
112+
else
113+
result.append("&");
114+
115+
result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
116+
result.append("=");
117+
result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
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}
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return result.toString();
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}
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}

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