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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.2//EN" "http://www.puppycrawl.com/dtds/configuration_1_2.dtd">

<!-- Generated by RHY @will_awoke -->

<module name="Checker">

    <property name="charset" value="UTF-8"/>
    <property name="severity" value="warning"/>

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public class GridSpacingItemDecoration extends RecyclerView.ItemDecoration {
    private int spanCount;
    private int spacing;
    private boolean includeEdge;
    private int headerNum;
    private boolean isRtl = TextUtilsCompat.getLayoutDirectionFromLocale(Locale.getDefault()) == ViewCompat.LAYOUT_DIRECTION_RTL;

    public GridSpacingItemDecoration(int spanCount, int spacing, boolean includeEdge, int headerNum) {
        this.spanCount = spanCount;
        this.spacing = spacing;

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package criminalintent.android.bignerdranch.com.criminalintent;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;

public abstract class SingleFragmentActivity extends FragmentActivity {
    protected abstract Fragment createFragment();
    @Override

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        private final RectF touchedLineBounds = new RectF();

        @Override
        public boolean onTouchEvent(TextView widget, Spannable buffer,
                                    MotionEvent event) {
            int action = event.getAction();

            if (action == MotionEvent.ACTION_UP ||
                    action == MotionEvent.ACTION_DOWN) {
                int x = (int) event.getX();

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//只显示包名的list
adb shell "pm list packages"|cut -f 2 -d ":" 


//显示全称的list
adb shell pm list packages -f

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Simple RecyclerView Divider

Simple Horizontal Divider Item Decoration for RecyclerView

    mRecyclerView.addItemDecoration(new SimpleDividerItemDecoration(
            getApplicationContext()
    	));

NOTE: Add item decoration prior to setting the adapter

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/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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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package com.yelp.android.ui.widgets;

import com.yelp.android.R;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;

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import android.database.Cursor;
import android.support.annotation.NonNull;

import com.raizlabs.android.dbflow.runtime.DBTransactionInfo;
import com.raizlabs.android.dbflow.runtime.TransactionManager;
import com.raizlabs.android.dbflow.runtime.transaction.BaseTransaction;
import com.raizlabs.android.dbflow.runtime.transaction.QueryTransaction;
import com.raizlabs.android.dbflow.runtime.transaction.TransactionListener;
import com.raizlabs.android.dbflow.sql.builder.ConditionQueryBuilder;
import com.raizlabs.android.dbflow.sql.language.Delete;

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System directories

Method	Result
Environment.getDataDirectory()	/data
Environment.getDownloadCacheDirectory()	/cache
Environment.getRootDirectory()	/system

External storage directories