package com.lling.qiqu.utils;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.regex.Pattern;
import android.app.ActivityManager;
import android.app.ActivityManager.RunningServiceInfo;
import android.app.Dialog;
import android.content.Context;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import android.os.StatFs;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.ListAdapter;
import android.widget.ListView;
import com.lling.qiqu.R;
/**
* 工具類
*/
public class ToolsUtils {
public ToolsUtils() {
// TODO Auto-generated constructor stub
}
/**
* 检查是否存在SDCard
*
* @return
*/
public static boolean hasSdcard() {
String state = Environment.getExternalStorageState();
if (state.equals(Environment.MEDIA_MOUNTED)) {
return true;
} else {
return false;
}
}
/**
* 查看SD卡的剩余空间
* @return
*/
public long getSDFreeSize(){
//取得SD卡文件路径
File path = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(path.getPath());
//获取单个数据块的大小(Byte)
long blockSize = sf.getBlockSize();
//空闲的数据块的数量
long freeBlocks = sf.getAvailableBlocks();
//返回SD卡空闲大小
return (freeBlocks * blockSize)/1024 /1024; //单位MB
}
/**
* 查看SD卡总容量
* @return
*/
public long getSDAllSize(){
//取得SD卡文件路径
File path = Environment.getExternalStorageDirectory();
StatFs sf = new StatFs(path.getPath());
//获取单个数据块的大小(Byte)
long blockSize = sf.getBlockSize();
//获取所有数据块数
long allBlocks = sf.getBlockCount();
//返回SD卡大小
return (allBlocks * blockSize)/1024/1024; //单位MB
}
/**
* 获取屏幕的宽
* @param context
* @return
*/
public static int getScreenWidth(Context context) {
WindowManager manager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
DisplayMetrics dm=new DisplayMetrics();
manager.getDefaultDisplay().getMetrics(dm);
return dm.widthPixels;
}
/**
* 获取版本号
*
* @param context
* @return
*/
public static int getVersionCode(Context context) {
int versionCode = 0;
try {
// 获取软件版本号
versionCode = context.getPackageManager().getPackageInfo(
context.getPackageName(), 1).versionCode;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return versionCode;
}
/**
* 获取版本名称
*
* @param context
* @return
*/
public static String getVersionName(Context context) {
String versionName = "";
try {
// 获取软件版本名称
versionName = context.getPackageManager().getPackageInfo(
context.getPackageName(), 1).versionName;
} catch (NameNotFoundException e) {
e.printStackTrace();
}
return versionName;
}
/**
* 隐藏键盘
*
* @param v
* @return
*/
public static void hideKeyboard(View v) {
InputMethodManager imm = (InputMethodManager) v.getContext()
.getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm.isActive()) {
imm.hideSoftInputFromWindow(v.getApplicationWindowToken(), 0);
}
}
/**
* 打卡软键盘
* @param mEditText输入框
* @param mContext上下文
*/
public static void openKeybord(EditText mEditText, Context mContext) {
InputMethodManager imm = (InputMethodManager) mContext
.getSystemService(Context.INPUT_METHOD_SERVICE);
imm.showSoftInput(mEditText, InputMethodManager.RESULT_SHOWN);
imm.toggleSoftInput(InputMethodManager.SHOW_FORCED,
InputMethodManager.HIDE_IMPLICIT_ONLY);
}
/**
* 判断软键盘是否显示
* @param context
* @return
*/
public static boolean isKeybordShow(Context context) {
InputMethodManager imms = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
return imms.isActive();
}
/**
* 判断某个service是否正在运行
* @param context
* @param serviceName
* @return
*/
public static boolean isServiceWorked(Context context, String serviceName) {
ActivityManager myManager = (ActivityManager) context
.getSystemService(Context.ACTIVITY_SERVICE);
ArrayList<RunningServiceInfo> runningService = (ArrayList<RunningServiceInfo>) myManager
.getRunningServices(30);
for (int i = 0; i < runningService.size(); i++) {
if (runningService.get(i).service.getClassName().toString()
.equals(serviceName)) {
return true;
}
}
return false;
}
/**
* 设置dialog背景和动画
* @param dialig
*/
public static void setDialogBgAndAnim(Dialog dialig) {
// 设置背景变暗
WindowManager.LayoutParams lp = dialig.getWindow()
.getAttributes();
lp.dimAmount = 0.7f; // 设置30%暗度
dialig.getWindow().setAttributes(lp);
// 设置对话框弹出动画
dialig.getWindow().setWindowAnimations(R.style.dialogAnim);
}
/**
* 将字节转换为图像
* @param bytes
* @param opts
* @return
*/
public static Bitmap getPicFromBytes(byte[] bytes,
BitmapFactory.Options opts) {
if (bytes != null)
if (opts != null)
return BitmapFactory.decodeByteArray(bytes, 0, bytes.length,
opts);
else
return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
return null;
}
/**
* 将流转换为字节
*
* @param inStream
* @return
* @throws Exception
*/
public static byte[] readStream(InputStream inStream) throws Exception {
byte[] buffer = new byte[1024];
int len = -1;
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
while ((len = inStream.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
byte[] data = outStream.toByteArray();
outStream.close();
inStream.close();
return data;
}
public static String Html2Text(String inputString) {
String htmlStr = inputString; // 含html标签的字符串
String textStr = "";
java.util.regex.Pattern p_script;
java.util.regex.Matcher m_script;
java.util.regex.Pattern p_style;
java.util.regex.Matcher m_style;
java.util.regex.Pattern p_html;
java.util.regex.Matcher m_html;
java.util.regex.Pattern p_html1;
java.util.regex.Matcher m_html1;
try {
String regEx_script = "<[//s]*?script[^>]*?>[//s//S]*?<[//s]*?///[//s]*?script[//s]*?>"; // 定义script的正则表达式{或<script[^>]*?>[//s//S]*?<///script>
String regEx_style = "<[//s]*?style[^>]*?>[//s//S]*?<[//s]*?///[//s]*?style[//s]*?>"; // 定义style的正则表达式{或<style[^>]*?>[//s//S]*?<///style>
String regEx_html = "<[^>]+>"; // 定义HTML标签的正则表达式
String regEx_html1 = "<[^>]+";
p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
m_script = p_script.matcher(htmlStr);
htmlStr = m_script.replaceAll(""); // 过滤script标签
p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
m_style = p_style.matcher(htmlStr);
htmlStr = m_style.replaceAll(""); // 过滤style标签
p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
m_html = p_html.matcher(htmlStr);
htmlStr = m_html.replaceAll(""); // 过滤html标签
p_html1 = Pattern.compile(regEx_html1, Pattern.CASE_INSENSITIVE);
m_html1 = p_html1.matcher(htmlStr);
htmlStr = m_html1.replaceAll(""); // 过滤html标签
textStr = htmlStr;
} catch (Exception e) {
Log.e("Html2Text" , e.getMessage());
}
return textStr;// 返回文本字符串
}
/**
* 手动设置listview的高度，包裹所有元素
* @param listView
*/
public static void setListViewHeightBasedOnChildren(ListView listView) {
ListAdapter listAdapter = listView.getAdapter();
if (listAdapter == null) {
// pre-condition
return;
}
int totalHeight = 0;
for (int i = 0; i < listAdapter.getCount(); i++) {
View listItem = listAdapter.getView(i, null, listView);
listItem.measure(0, 0);
totalHeight += listItem.getMeasuredHeight();
}
ViewGroup.LayoutParams params = listView.getLayoutParams();
params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
listView.setLayoutParams(params);
}
}
