Android Open Source - xposed-keep-trash Main Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Keep Trash//from   ww  w. j av a  2  s . co m
 *
 * Xposed module to move 'Delete' button from overflow menu to action bar
 * in Google Keep
 *
 * Copyright (c) 2014 Shubhang Rathore
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.shubhangrathore.xposed.keeptrash;

import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.graphics.drawable.ColorDrawable;
import android.net.Uri;
import android.os.Bundle;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AbsListView;
import android.widget.ListView;
import android.widget.Toast;

import com.faizmalkani.floatingactionbutton.Fab;

public class MainActivity extends PreferenceActivity {

    public static String mGoogleKeepVersion;

    private static final String CHANGELOG_LINK = "https://github.com/xenon92/xposed-keep-trash/blob/master/CHANGELOG.md";
    private static final String DEVELOPER_WEBSITE_LINK = "http://shubhangrathore.com";
    private static final String GOOGLE_KEEP_PLAY_STORE_LINK = "https://play.google.com/store/apps/details?id=com.google.android.keep";
    private static final String READ_MORE_LINK = "http://blog.shubhangrathore.com/keep-trash/index.html";
    private static final String SOURCE_CODE_LINK = "https://www.github.com/xenon92/xposed-keep-trash";

    public static final String TAG = "XposedKeepTrash";

    private Preference mChangelog;
    private Preference mDeveloper;
    private Preference mGoogleKeepVersionPreference;
    private ListView mPreferenceListView;
    private Preference mReadMore;
    private CheckBoxPreference mShowArchive;
    private CheckBoxPreference mShowArchiveEditor;
    private CheckBoxPreference mShowDelete;
    private CheckBoxPreference mShowShowCheckboxesEditor;
    private CheckBoxPreference mShowShare;
    private Preference mSource;

    private Fab mFab;

    private boolean mIsScrollingUp;
    int mLastFirstVisibleItem = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        getPreferenceManager().setSharedPreferencesMode(MODE_WORLD_READABLE);
        addPreferencesFromResource(R.xml.preferences);
        setContentView(R.layout.activity_main);

        mChangelog = findPreference("changelog_preference");
        mDeveloper = findPreference("developer_preference");
        mGoogleKeepVersionPreference = findPreference("installed_keep_version_preference");
        mPreferenceListView = (ListView) findViewById(android.R.id.list);
        mReadMore = findPreference("read_more_preference");
        mShowArchive = (CheckBoxPreference) findPreference("show_archive_checkbox_preference");
        mShowArchiveEditor = (CheckBoxPreference) findPreference("show_archive_editor_checkbox_preference");
        mShowDelete = (CheckBoxPreference) findPreference("show_delete_checkbox_preference");
        mShowShowCheckboxesEditor = (CheckBoxPreference) findPreference("show_show_checkboxes_editor_checkbox_preference");
        mShowShare = (CheckBoxPreference) findPreference("show_share_checkbox_preference");
        mSource = findPreference("app_source_preference");

        initializeFloatingButton();
        hideUnhideFloatingButton();
        setActionBarColor();
        setAppVersionNameInPreference();
        setGoogleKeepVersion();

    }


    /**
     * Retrieve Keep Trash app version
     *
     * @return mVersionName String that returns the app version
     */
    private String getAppVersionName() {
        String mVersionName = null;

        try {
            mVersionName = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;
            Log.i(TAG, "Keep Trash version = " + mVersionName);
        } catch (PackageManager.NameNotFoundException e) {
            Log.e(TAG, "Couldn't get Keep Trash app version.");
        }
        return mVersionName;
    }

    private void setAppVersionNameInPreference() {
        Preference mVersionNamePreference = findPreference("app_version_name_preference");
        mVersionNamePreference.setSummary(getAppVersionName());
    }

    /**
     * Handles tap on preferences in the app
     *
     * @param preferenceScreen
     * @param preference preference that has been tapped
     * @return
     */
    @Override
    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {

        if (preference == mChangelog) {

            openLink(CHANGELOG_LINK);
            return true;

        } else if (preference == mDeveloper) {

            openLink(DEVELOPER_WEBSITE_LINK);
            return true;

        } else if (preference == mGoogleKeepVersionPreference) {

            openLink(GOOGLE_KEEP_PLAY_STORE_LINK);

        } else if (preference == mReadMore) {

            openLink(READ_MORE_LINK);
            return true;

        } else if (preference == mSource) {

            openLink(SOURCE_CODE_LINK);
            return true;

        } else if ((preference == mShowArchive) || (preference == mShowDelete)
                || (preference == mShowShare) || (preference == mShowArchiveEditor)
                || (preference == mShowShowCheckboxesEditor)) {

            // Changes will take effect after restarting Google Keep
            Toast.makeText(getApplicationContext(),
                    getString(R.string.restart_google_keep_for_changes),
                    Toast.LENGTH_SHORT).show();

        }

        return false;
    }

    /**
     * Open web links by parsing the URI of the parameter link
     *
     * @param link the link to be parsed to open
     */
    private void openLink(String link) {

        Intent browserIntent = new Intent(Intent.ACTION_VIEW,
                Uri.parse(link));
        startActivity(browserIntent);

        Log.i(TAG, "Opening link = " + link);

    }

    /**
     * Gets and stores the Google Keep app version installed on the
     * system in the static variable mGoogleKeepVersion.
     */
    private void setGoogleKeepVersion() {

        try {

            PackageInfo mPackageInfo = getPackageManager().getPackageInfo("com.google.android.keep", 0);
            mGoogleKeepVersion = mPackageInfo.versionName;

            mGoogleKeepVersionPreference.setSummary(mGoogleKeepVersion + getString(R.string.tap_to_open_keep_in_play_store));
            Log.i(TAG, "Google Keep version installed = " + mGoogleKeepVersion);

        } catch (PackageManager.NameNotFoundException e) {

            Log.e(TAG, "Google Keep not installed.");
            mGoogleKeepVersion = null;

            mGoogleKeepVersionPreference.setSummary(getString(R.string.keep_not_installed) + getString(R.string.tap_to_open_keep_in_play_store));
            mGoogleKeepVersionPreference.setSelectable(true);

        }
    }

    private String getGoogleKeepVersion() {

        return mGoogleKeepVersion;
    }

    private void setActionBarColor() {
        int mColorBlue = getResources().getColor(android.R.color.holo_blue_dark);
        getActionBar().setBackgroundDrawable(new ColorDrawable(mColorBlue));
    }


    private void initializeFloatingButton() {

        mFab = (Fab)findViewById(R.id.fabbutton);
        mFab.setFabColor(getResources().getColor(android.R.color.white));
        mFab.setFabDrawable(getResources().getDrawable(R.drawable.ic_keep_lightbulb));
        mFab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                try {

                    Log.i(TAG, "Opening Google Keep through floating button");
                    Intent mOpenAppIntent = getPackageManager()
                            .getLaunchIntentForPackage("com.google.android.keep");
                    startActivity(mOpenAppIntent);

                } catch (NullPointerException e) {

                    Toast.makeText(getApplicationContext(),
                            getString(R.string.opening_in_play_store),
                            Toast.LENGTH_SHORT).show();

                    Log.i(TAG, "Google Keep not installed");
                    openLink(GOOGLE_KEEP_PLAY_STORE_LINK);

                }
            }
        });

    }

    private void hideUnhideFloatingButton() {

        mPreferenceListView.setOnScrollListener(new AbsListView.OnScrollListener(){
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {

            }

            public void onScrollStateChanged(AbsListView view, int scrollState) {

                final ListView mListView = getListView();

                 if(scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE)
                    // Scrolling stopped here

                    if (view.getId() == mListView.getId()) {
                        final int currentFirstVisibleItem = mListView.getFirstVisiblePosition();
                        if (currentFirstVisibleItem > mLastFirstVisibleItem) {
                            // Scrolling down here
                            mIsScrollingUp = false;
                            mFab.hideFab();
                        } else if (currentFirstVisibleItem < mLastFirstVisibleItem) {
                            // Scrolling up here
                            mIsScrollingUp = true;
                            mFab.showFab();
                        }
                        mLastFirstVisibleItem = currentFirstVisibleItem;
                    }
            }
        });

    }

}

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