Merge branch 'master' of https://github.com/sowmen/ChatFull

Author: nabilarifa

app/src/main/java/com/example/chatfull/ChatActivity.java

@@ -1,15 +1,20 @@
 package com.example.chatfull;
 
+import android.Manifest;
 import android.app.DownloadManager;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.content.res.TypedArray;
 import android.database.Cursor;
 import android.graphics.Color;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Environment;
+import android.os.Handler;
 import android.provider.OpenableColumns;
 import android.util.Base64;
 import android.util.Log;
@@ -27,12 +32,14 @@
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
+import androidx.core.app.ActivityCompat;
 
 import com.bumptech.glide.Glide;
 import com.flask.colorpicker.ColorPickerView;
 import com.flask.colorpicker.OnColorSelectedListener;
 import com.flask.colorpicker.builder.ColorPickerClickListener;
 import com.flask.colorpicker.builder.ColorPickerDialogBuilder;
+import com.google.gson.Gson;
 import com.stfalcon.chatkit.commons.ImageLoader;
 import com.stfalcon.chatkit.messages.MessageHolders;
 import com.stfalcon.chatkit.messages.MessagesList;
@@ -45,24 +52,35 @@
 import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Calendar;
+import java.util.Date;
+import java.util.List;
 
 public class ChatActivity extends AppCompatActivity
  implements MessageHolders.ContentChecker<Message>,
- MessagesListAdapter.OnMessageLongClickListener<Message> {
+ MessagesListAdapter.OnMessageLongClickListener<Message>,
+ MessagesListAdapter.OnLoadMoreListener{
 
  private static final int PICK_FILE_REQUEST = 1;
  private static final int PICK_IMAGE_REQUEST = 2;
  private static final byte CONTENT_TYPE_FILE = 1;
+ private static final int REQUEST_WRITE_EXTERNAL_STORAGE = 200;
+ private static String PREFERENCE_FILE_KEY;
+ private final static String SHARED_PREFERENCES_KEY_MESSAGE_LIST = "User_Info_List";
+ SharedPreferences sharedPref;
+ SharedPreferences.Editor editor;
+ Gson gson;
 
  private User user;
  private SendMessage sender;
  private MessageReceiveServer messageReceiveServer;
 
  MessagesList messagesList;
  protected final String senderId = "1";
+ private static final int TOTAL_MESSAGES_COUNT = 20;
+ private Date lastLoadedDate;
 
  MessagesListAdapter<Message> adapter;
- int cnt = 0;
+ int cnt = 0; //Sets message counter id
 
  Button btnSend;
  ImageButton btnAttachment, btnImage;
@@ -71,12 +89,13 @@ public class ChatActivity extends AppCompatActivity
  RelativeLayout back_view;
  int[] colors;
 
- ArrayList<Message> messageArrayList;
+ List<Message> messageArrayList;
 
  @Override
  protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_chat_alternate);
+ isStoragePermissionGranted();
 
  user = (User) getIntent().getSerializableExtra("user");
 
@@ -131,6 +150,47 @@ public void loadImage(ImageView imageView, @Nullable String url, @Nullable Objec
  ta.recycle();
 
  adapter.setOnMessageLongClickListener(this);
+
+ messageArrayList = new ArrayList<Message>();
+ gson = new Gson();
+
+ PREFERENCE_FILE_KEY = user.getId();
+ sharedPref = this.getSharedPreferences(
+ PREFERENCE_FILE_KEY, Context.MODE_PRIVATE);
+ editor = sharedPref.edit();
+
+ String jsonDataString = sharedPref.getString(SHARED_PREFERENCES_KEY_MESSAGE_LIST,"");
+ if(jsonDataString.length() > 0) {
+ Message messageArray[] = gson.fromJson(jsonDataString, Message[].class);
+ for (Message msg : messageArray) {
+ messageArrayList.add(msg);
+ }
+ adapter.addToEnd(messageArrayList,false);
+ Log.e("MESSAGE_SIZE", messageArrayList.size() + "");
+ }
+ }
+
+ public boolean isStoragePermissionGranted() {
+ if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+ if (checkSelfPermission(android.Manifest.permission.WRITE_EXTERNAL_STORAGE)
+ == PackageManager.PERMISSION_GRANTED) {
+ return true;
+ } else {
+ ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, REQUEST_WRITE_EXTERNAL_STORAGE );
+ return false;
+ }
+ }
+ else { //permission is automatically granted on sdk<23 upon installation
+ return true;
+ }
+ }
+
+ @Override
+ public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+ super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+ if(grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
+ //resume tasks needing this permission
+ }
  }
 
  private void setClipboard(Context context, String text) {
@@ -202,6 +262,8 @@ public void onBtnSendClick(View view) {
  message.setFilename(null);
  adapter.addToStart(message, true);
 
+ messageArrayList.add(message);
+
  sender = new SendMessage(user.getIpAddress(), user.getPort(), message, this);
  sender.execute();
  Log.e("SEND", input.getText().toString());
@@ -242,6 +304,9 @@ protected void onActivityResult(int requestCode, int resultCode, @Nullable Inten
  message.setIsFile(true);
 
  adapter.addToStart(message, true);
+
+ messageArrayList.add(message);
+
  sender = new SendMessage(user.getIpAddress(), user.getPort(), message, this);
  sender.execute();
  }
@@ -260,6 +325,9 @@ protected void onActivityResult(int requestCode, int resultCode, @Nullable Inten
  message.setIsFile(false);
 
  adapter.addToStart(message, true);
+
+ messageArrayList.add(message);
+
  sender = new SendMessage(user.getIpAddress(), user.getPort(), message, this);
  sender.execute();
  }
@@ -367,6 +435,9 @@ public void run() {
  } else if (msg.isColor()) {
  back_view.setBackgroundColor(msg.getColor());
  }
+
+ if(!msg.isColor())
+ messageArrayList.add(msg);
  }
  });
  }
@@ -381,6 +452,15 @@ protected void onDestroy() {
  super.onDestroy();
  }
 
+ @Override
+ protected void onPause() {
+ super.onPause();
+
+ String jsonDataString = gson.toJson(messageArrayList);
+ editor.putString(SHARED_PREFERENCES_KEY_MESSAGE_LIST, jsonDataString);
+ editor.commit();
+ }
+
  @Override
  public void onBackPressed() {
  Log.e("CHAT_ACTIVITY", "PAUSE");
@@ -455,4 +535,30 @@ public void onMessageLongClick(Message message) {
  downloadManager.addCompletedDownload(message.getId() + message.getFilename(), message.getId() + message.getFilename(), true, "image/*", file.getAbsolutePath(), file.length(), true);
  }
  }
+
+ @Override
+ public void onLoadMore(int page, int totalItemsCount) {
+ Log.i("TAG", "onLoadMore: " + page + " " + totalItemsCount);
+ if (totalItemsCount < TOTAL_MESSAGES_COUNT) {
+ loadMessages();
+ }
+ }
+
+ protected void loadMessages() {
+ new Handler().postDelayed(new Runnable() { //imitation of internet connection
+ @Override
+ public void run() {
+ Log.e("load","Ashche");
+ ArrayList<Message> more_messages = new ArrayList<>();
+ for(int i=0, j=0; i<messageArrayList.size() && j<10; i++){
+ if(messageArrayList.get(i).getCreatedAt().before(lastLoadedDate)){
+ more_messages.add(messageArrayList.get(i));
+ j++;
+ }
+ }
+ lastLoadedDate = more_messages.get(more_messages.size() - 1).getCreatedAt();
+ adapter.addToEnd(more_messages, false);
+ }
+ }, 500);
+ }
 }