Android 基础工具类 摘自quantan.liu 易读项目

package com.laotan.easyreader.webview;import android.app.ActivityManager;import android.content.ClipboardManager;import android.content.Context;import android.content.Intent;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.net.Uri;import android.text.TextUtils;import android.util.DisplayMetrics;import android.view.WindowManager;import android.widget.TextView;import com.blankj.utilcode.utils.Utils;import java.lang.reflect.Field;import java.text.DecimalFormat;import java.text.NumberFormat;import java.util.List;import java.util.Locale;/** * Created by quantan.liu on 2017/3/29. */public class BaseTools {    //获取图片所在文件夹名称    public static String getDir(String path) {        String subString = path.substring(0, path.lastIndexOf('/'));        return subString.substring(subString.lastIndexOf('/') + 1, subString.length());    }    public static int getWindowWidth(Context context) {        // 获取屏幕分辨率        WindowManager wm = (WindowManager) (context                .getSystemService(Context.WINDOW_SERVICE));        DisplayMetrics dm = new DisplayMetrics();        wm.getDefaultDisplay().getMetrics(dm);        int mScreenWidth = dm.widthPixels;        return mScreenWidth;    }    public static int getWindowHeigh(Context context) {        // 获取屏幕分辨率        WindowManager wm = (WindowManager) (context                .getSystemService(Context.WINDOW_SERVICE));        DisplayMetrics dm = new DisplayMetrics();        wm.getDefaultDisplay().getMetrics(dm);        int mScreenHeigh = dm.heightPixels;        return mScreenHeigh;    }    //获得状态栏/通知栏的高度    public static int getStatusBarHeight(Context context) {        Class<?> c = null;        Object obj = null;        Field field = null;        int x = 0, statusBarHeight = 0;        try {            c = Class.forName("com.android.internal.R$dimen");            obj = c.newInstance();            field = c.getField("status_bar_height");            x = Integer.parseInt(field.get(obj).toString());            statusBarHeight = context.getResources().getDimensionPixelSize(x);        } catch (Exception e1) {            e1.printStackTrace();        }        return statusBarHeight;    }    /**     * 使用默认方式显示货币：     * 例如:￥12,345.46 默认保留2位小数，四舍五入     *     * @param d double     * @return String     */    public static String formatCurrency(double d) {        String s = "";        try {            DecimalFormat nf = (DecimalFormat) NumberFormat.getCurrencyInstance(Locale.CHINA);            s = nf.format(d);        } catch (Exception e) {            e.printStackTrace();            return "" + d;        }        return s;    }    /**     * 去掉无效小数点 ".00"     */    public static String formatMoney(double d) {        String tmp = formatCurrency(d);        if (tmp.endsWith(".00")) {            return tmp.substring(0, tmp.length() - 3);        } else {            return tmp;        }    }    /**     * 处于栈顶的Activity名     */    public String getTopActivityName(Context context) {        ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);        List var2 = am.getRunningTasks(1);        return ((ActivityManager.RunningTaskInfo) var2.get(0)).topActivity.getClassName();    }    public static void setText(String text, TextView textView) {        if (textView != null) {            if (TextUtils.isEmpty(text)) {                textView.setText("");            } else {                textView.setText(text);            }        }    }    /**     * 获取当前应用的版本号     */    public static String getVersionName() {        // 获取packagemanager的实例        PackageManager packageManager = Utils.getContext().getPackageManager();        // getPackageName()是你当前类的包名，0代表是获取版本信息        PackageInfo packInfo = null;        try {            packInfo = packageManager.getPackageInfo(Utils.getContext().getPackageName(), 0);            return packInfo.versionName;        } catch (PackageManager.NameNotFoundException e) {            e.printStackTrace();            return "1.0";        }    }    /**     * 实现文本复制功能     *     * @param content 复制的文本     */    public static void copy(String content) {        // 得到剪贴板管理器        ClipboardManager cmb = (ClipboardManager) Utils.getContext().getSystemService(Context.CLIPBOARD_SERVICE);        cmb.setText(content.trim());    }    /**     * 使用浏览器打开链接     */    public static void openLink(Context context, String content) {        Uri issuesUrl = Uri.parse(content);        Intent intent = new Intent(Intent.ACTION_VIEW, issuesUrl);        context.startActivity(intent);    }}