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/*
 * Copyright 2015 Yuriy Mysochenko
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

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import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.pm.Signature;

public class TamperCheck {

//we store the hash of the signture for a little more protection
private static final String APP_SIGNATURE = "1038C0E34658923C4192E61B16846";

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// Slide up animation

<?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android" >

    <translate
        android:duration="@android:integer/config_mediumAnimTime"
        android:fromYDelta="100%"
        android:interpolator="@android:anim/accelerate_interpolator"
        android:toXDelta="0" />

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// example courtesy of http://adilatwork.blogspot.com/2012/11/android-dialogfragment-enter-and-exit.html
// file location: src/main/java/com/example/

@Override
public void onStart() {
    super.onStart();

    // safety check
    if (getDialog() == null) {
        return;

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package com.kevicsalazar.utils;

import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.view.View;

public class AnimationUtils {
    // Attention
    public static AnimatorSet loadBounceAnimator(View target) {
        AnimatorSet animatorSet = new AnimatorSet();

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// Example
fun expandAdapterDelegate() = adapterDelegateLayoutContainer<ExpandedItem, DisplayableItem>(R.layout.item_expanded) {

    llArrowContainer.setOnClickListener {
        val isExpand = !item.isExpanded
        item.isExpanded = isExpand
        expandText(isExpand, ivArrow, llTextContainer)
    }

    bind {

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class HorizontalPaddingDecoration(
    private val padding: Float = 2f,
    private val firstLastPadding: Float = 20f
) : RecyclerView.ItemDecoration() {

    override fun getItemOffsets(
        outRect: Rect,
        view: View,
        parent: RecyclerView,
        state: RecyclerView.State

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class AddressesSpinnerAdapter(
    context: Context,
    textViewResourceId: Int = android.R.layout.simple_spinner_item
) : ArrayAdapter<AddressesSpinnerItem>(context, textViewResourceId) {

    var values: ArrayList<AddressesSpinnerItem> = arrayListOf()
        set(value) {
            field.clear()
            field = value
            notifyDataSetChanged()

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for f in *\ *; do mv "$f" "${f// /_}"; done --удаляет пробелы в названии файлов
for a_file in *;do mv -v "$a_file" `echo "$a_file" | tr [:upper:] [:lower:]` ;done; ---делает lowercase
rename 's/[\(\)]//g' *.txt переименует все файлы .txt, удалив круглые скобки.
rename 's/[\-]//g' *.jpg  удалив минус(-).

for file in *; do mv "$file" `echo $file | tr '-' '_'` ; done - замена - на _

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UI guideline

https://learnui.design/blog/ios-vs-android-app-ui-design-complete-guide.html

Resource Naming Guideline

/layout

<what>_<where> (snake_case)

what	where	sample
activity	Content View of Activity	activity_splash.xml