Notes

package com.inkbridge.inkbridge;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Build;
import android.support.design.bottomappbar.BottomAppBar;
import android.support.design.widget.FloatingActionButton;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

import com.google.firebase.auth.FirebaseAuth;

import java.util.ArrayList;

import javax.security.auth.login.LoginException;

import static android.support.design.bottomappbar.BottomAppBar.FAB_ALIGNMENT_MODE_CENTER;
import static android.support.design.bottomappbar.BottomAppBar.FAB_ALIGNMENT_MODE_END;

public class ActivityMain extends AppCompatActivity {

private static final String TAG = "main";
private BottomAppBar bottomAppBar;
private ArrayList<Fragment> fragmentList;
private String ch = "0";
private FragmentManager fragmentManager;
private FloatingActionButton fab;
private static final int PERMISSION_REQUEST_CODE = 1;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

setViews();

setSupportActionBar(bottomAppBar);

setFragment("0");

onFabClick();

checkForStoragePermission();

}

private void checkForStoragePermission() {

if (Build.VERSION.SDK_INT >= 23) {
if (checkPermission()) {
// Code for above or equal 23 API Oriented Device
// Your Permission granted already .Do next code
Log.wtf(TAG, "Permission already granted");
//Log.wtf(TAG, localStoragePath);

} else {
Log.wtf(TAG, "Request permission");
requestPermission(); // Code for permission
}
} else {
Log.wtf(TAG, "some error occured");
// Code for Below 23 API Oriented Device
// Do next code
}

}

private void requestPermission() {
try {
ActivityCompat.requestPermissions(ActivityMain.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
PERMISSION_REQUEST_CODE);
} catch (Exception e) {
e.printStackTrace();
throw e;
}
}

private boolean checkPermission() {
int result = ContextCompat.checkSelfPermission(ActivityMain.this, Manifest.permission.WRITE_EXTERNAL_STORAGE);
if (result == PackageManager.PERMISSION_GRANTED) {
return true;
} else {
return false;
}
}

private void onFabClick() {
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
int fab = bottomAppBar.getFabAlignmentMode();
if(fab == 0){
startActivity(new Intent(ActivityMain.this, ActivityTyper.class));
}
else if(fab == 1){
setFragment("0");
}

}
});
}

public void setViews(){
bottomAppBar = findViewById(R.id.bottom_app_bar);
bottomAppBar.setHideOnScroll(true);
fragmentList = new ArrayList<>();
fragmentList.add(new FragmentNewsFeed());
fragmentList.add(new FragmentNewConsignment());
fragmentList.add(new FragmentNotificationNew());
fragmentList.add(new FragmentProfile());
fragmentManager = getSupportFragmentManager();
fab = findViewById(R.id.fab);
}

protected void setFragment(String tag) {

if(tag.equals("1")) {
bottomAppBar.setFabAlignmentMode((FAB_ALIGNMENT_MODE_END));
fab.setImageResource(R.drawable.icon_back);
}
else {
bottomAppBar.setFabAlignmentMode((FAB_ALIGNMENT_MODE_CENTER));
fab.setImageResource(R.drawable.icon_plus);
}

FragmentTransaction transaction = fragmentManager.beginTransaction();
if (tag.compareTo(ch) > 0)
transaction.setCustomAnimations(R.anim.enter_right, R.anim.exit_left).commit();
else if (tag.compareTo(ch) < 0)
transaction.setCustomAnimations(R.anim.enter_left, R.anim.exit_right).commit();
else
transaction.commit();
for (int i = 0; i < fragmentList.size(); i++) {
if (tag.equals(String.valueOf(i))) {
if (fragmentManager.findFragmentByTag(String.valueOf(i)) != null) {
transaction.show(fragmentManager.findFragmentByTag(String.valueOf(i)));
} else
transaction.add(R.id.fragment_container, fragmentList.get(i), String.valueOf(i));
} else if (fragmentManager.findFragmentByTag(String.valueOf(i)) != null)
transaction.hide(fragmentManager.findFragmentByTag(String.valueOf(i)));

}
ch = tag;

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.bottomappbar_menu_primary,menu);
return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()){

case android.R.id.home:
BottomNavigationDrawerFragment bottomNavigation = new BottomNavigationDrawerFragment();
bottomNavigation.show(getSupportFragmentManager(),bottomNavigation.getTag());
break;

case R.id.app_bar_search:
print("Search");
break;
}
return super.onOptionsItemSelected(item);
}

public void print(String s){
Toast.makeText(this, s, Toast.LENGTH_SHORT).show();
}


public void finishActivity(){

FirebaseAuth.getInstance().signOut();
Intent intent = new Intent(getApplicationContext(), ActivityLogin.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}

}