288 lines
9.2 KiB
Java
288 lines
9.2 KiB
Java
package com.akdev.nofbeventscraper;
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import android.annotation.SuppressLint;
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import android.content.ClipboardManager;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.net.Uri;
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import android.os.Bundle;
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import android.view.KeyEvent;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import androidx.annotation.NonNull;
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import androidx.appcompat.app.AppCompatActivity;
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import androidx.appcompat.view.menu.MenuBuilder;
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import androidx.appcompat.widget.Toolbar;
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import androidx.preference.PreferenceManager;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import com.google.android.material.appbar.AppBarLayout;
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import com.google.android.material.appbar.CollapsingToolbarLayout;
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import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton;
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import com.google.android.material.textfield.TextInputEditText;
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import com.google.android.material.textfield.TextInputLayout;
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import com.google.gson.Gson;
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import com.google.gson.reflect.TypeToken;
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import java.lang.ref.WeakReference;
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import java.lang.reflect.Type;
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import java.util.List;
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import java.util.Objects;
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import jp.wasabeef.recyclerview.animators.FadeInAnimator;
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import static com.akdev.nofbeventscraper.FbEvent.createEventList;
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public class MainActivity extends AppCompatActivity {
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protected ExtendedFloatingActionButton paste_button;
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protected TextInputEditText edit_text_uri_input;
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protected TextInputLayout layout_uri_input;
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protected FbScraper scraper;
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protected List<FbEvent> events;
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EventAdapter adapter;
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LinearLayoutManager linear_layout_manager;
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private List<FbEvent> getSavedEvents() {
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
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Gson gson = new Gson();
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String json = prefs.getString("events", "");
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Type event_list_type = new TypeToken<List<FbEvent>>() {
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}.getType();
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List<FbEvent> list = gson.fromJson(json, event_list_type);
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if (list == null) {
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list = createEventList();
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}
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return list;
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}
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/**
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* Callback after clearing events from settings needed.
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*/
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@Override
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public void onRestart() {
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super.onRestart();
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events.clear();
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events.addAll(getSavedEvents());
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adapter.notifyDataSetChanged();
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}
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/**
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* Save events list to SharedPreferences as JSON
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*/
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@Override
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public void onSaveInstanceState(@NonNull Bundle state) {
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super.onSaveInstanceState(state);
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SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
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SharedPreferences.Editor prefs_edit = prefs.edit();
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Gson gson = new Gson();
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String json = gson.toJson(events);
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prefs_edit.putString("events", json);
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prefs_edit.apply();
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}
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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_main);
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edit_text_uri_input = findViewById(R.id.edit_text_uri_input);
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layout_uri_input = findViewById(R.id.layout_uri_input);
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Toolbar toolbar = findViewById(R.id.toolbar);
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setSupportActionBar(toolbar);
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paste_button = findViewById(R.id.paste_button);
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/*
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* initialize recycler view with saved list of events
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* scroll horizontal with snapping
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*/
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RecyclerView recycler_view = findViewById(R.id.recycler_view);
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this.events = getSavedEvents();
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adapter = new EventAdapter(events);
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recycler_view.setAdapter(adapter);
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linear_layout_manager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
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recycler_view.setLayoutManager(linear_layout_manager);
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recycler_view.setItemAnimator(new FadeInAnimator());
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/*
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* Display title only when toolbar is collapsed
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*/
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AppBarLayout app_bar_layout = findViewById(R.id.app_bar);
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app_bar_layout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
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boolean show = true;
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int scroll_range = -1;
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CollapsingToolbarLayout layout_toolbar = findViewById(R.id.layout_toolbar);
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@Override
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public void onOffsetChanged(AppBarLayout app_bar_layout, int vertical_offset) {
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if (scroll_range == -1) {
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scroll_range = app_bar_layout.getTotalScrollRange();
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}
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if (scroll_range + vertical_offset == 0) {
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layout_toolbar.setTitle(getString(R.string.app_name));
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show = true;
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} else if (show) {
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layout_toolbar.setTitle(" ");
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show = false;
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}
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}
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});
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/*
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* Paste button: get last entry from clipboard
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*/
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paste_button.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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try {
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ClipboardManager clipboard = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
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String str = clipboard.getPrimaryClip().getItemAt(0).getText().toString();
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edit_text_uri_input.setText(str);
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startScraping();
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} catch (Exception e) {
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e.printStackTrace();
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input_helper(R.string.error_clipboard_empty, true);
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}
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}
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});
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/*
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* Error in input: clear input on click
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*/
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View.OnClickListener listener = new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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input_helper(R.string.helper_add_link, true);
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edit_text_uri_input.setText(null);
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input_helper(R.string.helper_add_link, false);
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}
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};
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layout_uri_input.setErrorIconOnClickListener(listener);
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layout_uri_input.setEndIconOnClickListener(listener);
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/*
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* Enter button in uri input: start scraping
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*/
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edit_text_uri_input.setOnKeyListener(new View.OnKeyListener() {
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public boolean onKey(View view, int keycode, KeyEvent keyevent) {
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//If the key event is a key-down event on the "enter" button
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if ((keyevent.getAction() == KeyEvent.ACTION_DOWN) && (keycode == KeyEvent.KEYCODE_ENTER)) {
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startScraping();
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return true;
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}
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return false;
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}
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});
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/*
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* Get data from intent: if launched by other application
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* via "share to" or "open with"
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*/
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Intent intent = getIntent();
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Uri data = intent.getData();
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String shared_text = intent.getStringExtra(Intent.EXTRA_TEXT);
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if (data != null) {
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// opening external fb link
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edit_text_uri_input.setText(data.toString());
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startScraping();
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} else if (shared_text != null) {
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//share to nofb
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edit_text_uri_input.setText(shared_text);
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startScraping();
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}
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}
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/**
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* launch the FbScraper asynchronous task with the current text in the input text field.
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*/
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public void startScraping() {
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input_helper(null, false);
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String url = Objects.requireNonNull(edit_text_uri_input.getText()).toString();
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scraper = new FbScraper(new WeakReference<>(this), url);
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}
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public void input_helper(Integer resId, boolean error) {
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String str = (resId != null) ? getString(resId) : " ";
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if (error) {
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layout_uri_input.setError(str);
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} else {
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layout_uri_input.setError(null);
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layout_uri_input.setHelperText(str);
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}
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}
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/**
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* Adds new events to the start of the events list.
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*
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* @param new_event the event that was scraped by FbScraper
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*/
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public void addEvent(FbEvent new_event) {
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if (new_event != null) {
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this.events.add(0, new_event);
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this.adapter.notifyItemInserted(0);
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}
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}
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@SuppressLint("RestrictedApi")
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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// Inflate the menu; this adds items to the action bar if it is present.
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getMenuInflater().inflate(R.menu.menu_main, menu);
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if (menu instanceof MenuBuilder) {
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MenuBuilder m = (MenuBuilder) menu;
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//noinspection RestrictedApi
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m.setOptionalIconsVisible(true);
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}
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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int id = item.getItemId();
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if (id == R.id.action_about) {
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startActivity(new Intent(this, AboutActivity.class));
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return true;
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}
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if (id == R.id.action_help) {
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startActivity(new Intent(this, HelpActivity.class));
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return true;
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}
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if (id == R.id.action_settings) {
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startActivity(new Intent(this, SettingsActivity.class));
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return true;
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}
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return super.onOptionsItemSelected(item);
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}
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} |