PlayerUtil.java

package llf.videomodel.utils;

import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.DisplayMetrics;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * Created by llf on 2017/3/16.
 * 参数获取
 */

public class PlayerUtil {
    public static final SimpleDateFormat HHmm = new SimpleDateFormat("HH:mm");

    /**
     * 转换毫秒数成“分、秒”，如“01:53”。若超过60分钟则显示“时、分、秒”，如“01:01:30
     */
    public static String long2Str(long time) {
        int ss = 1000;
        int mi = ss * 60;
        int hh = mi * 60;

        long hour = (time) / hh;
        long minute = (time - hour * hh) / mi;
        long second = (time - hour * hh - minute * mi) / ss;

        String strHour = hour < 10 ? "0" + hour : "" + hour;
        String strMinute = minute < 10 ? "0" + minute : "" + minute;
        String strSecond = second < 10 ? "0" + second : "" + second;
        if (hour > 0) {
            return strHour + ":" + strMinute + ":" + strSecond;
        } else {
            return strMinute + ":" + strSecond;
        }
    }

    /**
     * 得到屏幕宽度
     * @return 宽度
     */
    public static int getScreenWidth(Activity activity) {
        DisplayMetrics dm = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
        int screenWidth = dm.widthPixels;
        return screenWidth;
    }

    /**
     * 得到屏幕高度
     * @return 高度
     */
    public static int getScreenHeight(Activity activity) {
        DisplayMetrics dm = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(dm);
        int screenHeight = dm.heightPixels;
        return screenHeight;
    }

    /**
     * 根据手机的分辨率�?dp 的单�?转成�?px(像素)
     */
    public static int dip2px(Context context, float dpValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (dpValue * scale + 0.5f);
    }

    /**
     * 根据手机的分辨率�?px(像素) 的单�?转成�?dp
     */
    public static int px2dip(Context context, float pxValue) {
        final float scale = context.getResources().getDisplayMetrics().density;
        return (int) (pxValue / scale + 0.5f);
    }

    /**
     * 获取当前时间
     */
    public static String getCurrentHHmmTime() {
        return HHmm.format(new Date());
    }

    private static ConnectivityManager mConnectivityManager = null;

    private static ConnectivityManager getConnectivityManager(Context context) {
        if (mConnectivityManager == null) {
            mConnectivityManager = (ConnectivityManager) context
                    .getSystemService(Context.CONNECTIVITY_SERVICE);
        }
        return mConnectivityManager;
    }

    /**
     * 网络是否可用
     * @param context
     * @return
     */
    public static boolean isNetworkConnected(Context context) {
        if (context != null) {
            NetworkInfo mNetworkInfo = getConnectivityManager(context).getActiveNetworkInfo();
            if (mNetworkInfo != null) {
                return mNetworkInfo.isAvailable();
            }
        }
        return false;
    }


    /**
     * 是否wife连接
     * @param context
     * @return
     */
    public static boolean isWifiConnected(Context context) {
        if (context != null) {
            NetworkInfo mWiFiNetworkInfo = getConnectivityManager(context).getActiveNetworkInfo();
            if (mWiFiNetworkInfo != null) {
                return (mWiFiNetworkInfo.getType() == ConnectivityManager.TYPE_WIFI);
            }
        }
        return false;
    }
    /**
     * 是否流量连接
     * @param context
     * @return
     */
    public static boolean isMobileConnected(Context context) {
        if (context != null) {
            NetworkInfo mNetworkInfo = getConnectivityManager(context).getActiveNetworkInfo();
            if (mNetworkInfo != null) {
                return (mNetworkInfo.getType() == ConnectivityManager.TYPE_MOBILE);
            }
        }
        return false;
    }

}