spiritedRunning

import java.security.SecureRandom;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.SecretKeyFactory;
import java.math.BigInteger;
import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;

/*
 * PBKDF2 salted password hashing.
 * Author: havoc AT defuse.ca

spiritedRunning

/**
 * @brief 圆环饼图统计view
 * Created by zhen.liu on 1/5/16.
 */
public class PieRingView extends View {
    private float convertAngel;
    private float radiusCircle;
    // 用于绘制圆弧的矩形
    private RectF mCircleRectF;
    private Paint paint;

spiritedRunning

public class GalleryAccountAdapter extends RecyclerView.Adapter<GalleryAccountAdapter.ViewHolder> {
    private static final String tag = GalleryAccountAdapter.class.getSimpleName();

    private LayoutInflater mInflater;
    private RelativeLayout relativeLayout;
    private OnItemClickListener mOnItemClickListener;

    // 列表项布局id
    private int item_ResID;
    private List<HistoryAccount> historyAccountData;

spiritedRunning

public class FloatingWindow extends FrameLayout {
    private static final String TAG = "FloatCallView";

    private Context mContext;

    private int mediaType;

    public static int viewHeight;

    public static int viewWidth;

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/**
 * 视频录制自定义View
 *
 * @author zhen.liu
 * @version 1.0
 * @date 2016/6/30
 */
public class VideoRecorderView extends LinearLayout implements MediaRecorder.OnErrorListener {
    private static String TAG = "VideoRecordView";

spiritedRunning

public double mySqrt(int x, double precision) {
        if (x == 1 || x == 0) {
            return x;
        }
        float left = 0, right = x;
        while (left <= right) {
            float mid = left + (right - left) / 2;
            if (Math.abs(mid * mid - x) <= precision) {
                return mid;
            } else if (mid > x / mid) {

spiritedRunning

public class AVLTree {
    public static class Node {
        int data;
        Node leftChild;
        Node rightChild;
        int height;

        public Node(int data) {
            this.data = data;

spiritedRunning

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

public class HuffmanTree {

    public static class Node<E> {
        E data;
        int weight;

spiritedRunning

public class Graph {
    // 节点数目
    int size;
    // 保存顶点信息
    String[] nodes;
    // 保存边的信息
    int[][] edges;

    /**
     *    A B C D E F G

spiritedRunning

package graph;

public class Dijkstra {
    // 节点数目
    int size;
    // 定点信息
    String[] nodes;
    // 保存边的信息
    int[][] edges;