Java tutorial
/** * Superuser * Copyright (C) 2016 Pierre-Hugues Husson (phhusson) * * 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.koushikdutta.superuser; import android.content.Intent; import android.graphics.Typeface; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.util.TypedValue; import android.view.View; import android.widget.TextView; import com.github.paolorotolo.appintro.AppIntro2; import com.github.paolorotolo.appintro.AppIntro2Fragment; public class ActivityIntro extends AppIntro2 { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setFadeAnimation(); skipButtonEnabled = false; setProgressButtonEnabled(false); addSlide(FragmentIntro.newInstance(R.layout.fragment_intro_0)); addSlide(AppIntro2Fragment.newInstance("App Settings", "Click on the icon for per app settings\nLong click will open the app itself", R.drawable.intro_1, 0xff43a047)); addSlide(AppIntro2Fragment.newInstance("Changing Permission", "To allow/deny or revoke, click on the app name", R.drawable.intro_2, 0xff0288d1)); //addSlide(AppIntro2Fragment.newInstance("Switching", "Use the floating action button to switch between allowed and denied apps", R.drawable.intro_3, 0xff6a1b9a)); } @Override public void onSlideChanged(@Nullable Fragment oldFragment, @Nullable Fragment newFragment) { super.onSlideChanged(oldFragment, newFragment); if (newFragment != null && newFragment.getView() != null) { View parent = newFragment.getView(); TextView title = (TextView) parent.findViewById(R.id.title); if (title != null) { if (!(newFragment instanceof FragmentIntro)) title.setTextColor(0xffeaeaea); title.setTextSize(TypedValue.COMPLEX_UNIT_SP, 25); if (Build.VERSION.SDK_INT > 15) title.setTypeface(Typeface.create("sans-serif-light", Typeface.NORMAL)); } TextView desc = (TextView) parent.findViewById(R.id.description); if (desc != null) { desc.setTextColor(0xffe9e9e9); desc.setTextSize(TypedValue.COMPLEX_UNIT_SP, 15.5f); desc.setLineSpacing(1f, 1); //if (Build.VERSION.SDK_INT > 15) desc.setTypeface(Typeface.create("sans-serif-light", Typeface.NORMAL)); } } } @Override public void onDonePressed(Fragment currentFragment) { PreferenceManager.getDefaultSharedPreferences(this).edit().putBoolean("intro", false).apply(); startActivity(new Intent(this, MainActivity.class)); finish(); } @Override public void onBackPressed() { } }