Java tutorial
/*Copyright 2017 Asutosh Nayak Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.*/ package com.demo.android.smsapp.activities; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.database.Cursor; import android.database.sqlite.SQLiteException; import android.media.RingtoneManager; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.NotificationCompat; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.SearchView; import android.support.v7.widget.Toolbar; import android.telephony.SmsManager; import android.telephony.SmsMessage; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.EditText; import com.demo.android.smsapp.R; import com.demo.android.smsapp.adapters.SMSChatsAdapter; import com.demo.android.smsapp.models.SMSModel; import java.util.ArrayList; public class SMSChatActivity extends AppCompatActivity implements View.OnClickListener { ActionBar actionBar; RecyclerView recyclerView; String number; ArrayList<SMSModel> smsModelsSearch, smsModels; SMSChatsAdapter smsChatsAdapter; EditText etMsg; Button btnSend; SmsManager smsManager; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_chat); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); setSupportActionBar(toolbar); number = getIntent().getStringExtra("number"); smsModels = new ArrayList<>(); smsModelsSearch = new ArrayList<>(); actionBar = getSupportActionBar(); actionBar.setTitle(number); smsManager = SmsManager.getDefault(); etMsg = (EditText) findViewById(R.id.et_msg); btnSend = (Button) findViewById(R.id.btn_send); btnSend.setOnClickListener(this); recyclerView = (RecyclerView) findViewById(R.id.recycler_chats); recyclerView.setLayoutManager(new LinearLayoutManager(this)); getChatWithNumber(); smsChatsAdapter = new SMSChatsAdapter(this, smsModels); recyclerView.setAdapter(smsChatsAdapter); } @Override public void onStart() { super.onStart(); registerReceiver(localSMSReceiver, new IntentFilter("android.provider.Telephony.SMS_RECEIVED")); } @Override public void onStop() { super.onStop(); unregisterReceiver(localSMSReceiver); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.menu_chat, menu); MenuItem item = menu.findItem(R.id.action_search); SearchView searchView = (SearchView) item.getActionView(); searchView.setQueryHint(getResources().getString(R.string.hint_search)); searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() { @Override public boolean onQueryTextSubmit(String query) { return false; } @Override public boolean onQueryTextChange(String newText) { smsModelsSearch = new ArrayList<SMSModel>(); for (int i = 0; i < smsModels.size(); i++) { if (smsModels.get(i).getBody().toLowerCase().contains(newText.toLowerCase())) { smsModelsSearch.add(smsModels.get(i)); } } smsChatsAdapter = new SMSChatsAdapter(SMSChatActivity.this, smsModelsSearch); recyclerView.setAdapter(smsChatsAdapter); smsChatsAdapter.notifyDataSetChanged(); return false; } }); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_search) { } return super.onOptionsItemSelected(item); } private void getChatWithNumber() { try { Uri uri = Uri.parse("content://sms/"); String[] columns = new String[] { "_id", "address", "person", "date", "body", "type" }; Cursor cursor = getContentResolver().query(uri, columns, "address='" + number + "'", null, "date asc"); cursor.moveToFirst(); Log.e("total:", cursor.getCount() + ""); String id, address, body, person, type, date; for (int i = 0; i < cursor.getCount(); i++) { address = cursor.getString(cursor.getColumnIndex("address")); body = cursor.getString(cursor.getColumnIndexOrThrow("body")); person = cursor.getString(cursor.getColumnIndex("person")); type = cursor.getString(cursor.getColumnIndex("type")); date = cursor.getString(cursor.getColumnIndexOrThrow("date")); id = cursor.getString(cursor.getColumnIndexOrThrow("_id")); smsModels.add(SMSModel.getSMSModelObject(id, address, body, type, date)); Log.e("readSMS", "Number:" + address + ",Person:" + person + ",Message: " + body + ",type:" + type + ",date:" + date + ",id:" + id); cursor.moveToNext(); } } catch (SQLiteException ex) { Log.e("SQLiteException", ex.getMessage()); } } @Override public void onClick(View v) { int id = v.getId(); if (id == R.id.btn_send) { smsManager.sendTextMessage(number, null, etMsg.getText().toString(), null, null); smsModels.add(SMSModel.getSMSModelObject("45", number, etMsg.getText().toString(), "2", String.valueOf(System.currentTimeMillis()))); smsChatsAdapter.notifyDataSetChanged(); recyclerView.post(new Runnable() { @Override public void run() { recyclerView.smoothScrollToPosition(recyclerView.getBottom()); } }); etMsg.setText(""); } } private BroadcastReceiver localSMSReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { final Bundle bundle = intent.getExtras(); try { if (bundle != null) { NotificationManager notificationManager = (NotificationManager) context .getSystemService(Context.NOTIFICATION_SERVICE); final Object[] pdusObj = (Object[]) bundle.get("pdus"); for (int i = 0; i < pdusObj.length; i++) { SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]); String phoneNumber = currentMessage.getDisplayOriginatingAddress(); String message = currentMessage.getDisplayMessageBody(); Log.i("SmsReceiver", "senderNum: " + phoneNumber + "; message: " + message); //passing dummy id here since real id is stored in content provider smsModels.add(SMSModel.getSMSModelObject("45", phoneNumber, message, "1", String.valueOf(System.currentTimeMillis()))); smsChatsAdapter.notifyDataSetChanged(); recyclerView.post(new Runnable() { @Override public void run() { recyclerView.smoothScrollToPosition(recyclerView.getBottom()); } }); } } } catch (Exception e) { Log.e("SmsReceiver", "Exception smsReceiver" + e); } } }; }