package com.gracecode.iZhihu.util;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Environment;
import android.widget.Toast;
import com.gracecode.iZhihu.R;
import com.gracecode.iZhihu.activity.Detail;
import com.gracecode.iZhihu.dao.Question;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Helper {
public static final String DEFAULT_CHARSET = "utf-8";
public static final String REGEX_MATCH_IMAGE = "<img[^>]+src\\s*=\\s*['\"]([^'\"]+)['\"][^>]*>";
public static final String MIME_IMAGE_PNG = "image/png";
private static final String MIME_PLAIN_TEXT = "text/plain";
public static void openWithBrowser(Activity activity, String url) {
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
activity.startActivity(i);
}
public static String replaceSymbol(String content) {
content = content.replaceAll("(“)([\u4e00-\u9fa5|\\s]+)", "「$2");
content = content.replaceAll("([\u4e30-\u9fa5|\\s]+)(”)", "$1」");
content = content.replaceAll("(‘)([\u4e00-\u9fa5|\\s]+)", "『$2");
content = content.replaceAll("([\u4e00-\u9fa5|\\s]+)(’)", "$1』");
content = content.replaceAll("……", "…");
return content;
}
public static void sendMail(Activity activity, String[] to, String subject, String content) {
Intent i = new Intent(Intent.ACTION_SEND);
i.setType("message/rfc822");
i.putExtra(Intent.EXTRA_EMAIL, to);
i.putExtra(Intent.EXTRA_SUBJECT, subject);
i.putExtra(Intent.EXTRA_TEXT, content);
activity.startActivity(Intent.createChooser(i, activity.getString(R.string.choose_email_client)));
}
public static boolean putFileContent(File file, InputStream inputStream) throws IOException {
if (!file.exists() && !file.createNewFile()) {
return false;
}
byte[] buffer = new byte[1024];
FileOutputStream fileOutputStream = new FileOutputStream(file);
for (int len; (len = inputStream.read(buffer)) != -1; ) {
fileOutputStream.write(buffer, 0, len);
}
inputStream.close();
fileOutputStream.close();
return true;
}
public static String getFileContent(InputStream fis) throws IOException {
InputStreamReader isr = new InputStreamReader(fis, DEFAULT_CHARSET);
BufferedReader br = new BufferedReader(isr);
StringBuffer sbContent = new StringBuffer();
String sLine;
while ((sLine = br.readLine()) != null) {
String s = sLine + "\n";
sbContent = sbContent.append(s);
}
isr.close();
br.close();
return sbContent.toString();
}
public static String getFileContent(String filePath) throws IOException {
FileInputStream fis = new FileInputStream(filePath);
String content = getFileContent(fis);
fis.close();
return content;
}
public static List<String> getImageUrls(String content) {
List<String> result = new ArrayList<String>();
Pattern pattern = Pattern.compile(REGEX_MATCH_IMAGE, Pattern.CASE_INSENSITIVE);
Matcher matcher = pattern.matcher(content);
while (matcher.find()) {
String group = matcher.group(1);
if (group != null) {
result.add(group);
}
}
return result;
}
/**
* 判断 WIFI 是否已经打开
*
* @param context
* @return
*/
public static boolean isWifiConnected(Context context) {
if (context == null) {
return false;
}
ConnectivityManager connectivityManager
= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
return (activeNetInfo != null) && (activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI);
}
public static boolean isNetworkConnected(Context context) {
if (context == null) {
return false;
}
ConnectivityManager connectivityManager
= (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
return (activeNetInfo != null) && (activeNetInfo.isConnected());
}
/**
* 外部存储是否存在
*
* @return boolean
*/
public static boolean isExternalStorageExists() {
return Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED);
}
/**
* 获取外部存储的路径
*
* @return String 路径
*/
public static String getExternalStoragePath() {
File externalStorageDirectory = null;
if (isExternalStorageExists()) {
externalStorageDirectory = Environment.getExternalStorageDirectory();
}
return (externalStorageDirectory != null) ? externalStorageDirectory.getAbsolutePath() : null;
}
/**
* 两个文件的相互拷贝
*
* @param source File
* @param dest File
* @throws IOException
*/
public static void copyFile(File source, File dest) throws IOException {
InputStream inputStream = null;
OutputStream outputStream = null;
try {
inputStream = new FileInputStream(source);
outputStream = new FileOutputStream(dest);
byte[] buffer = new byte[1024];
int length;
while ((length = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, length);
}
} finally {
if (inputStream != null) {
inputStream.close();
}
if (outputStream != null) {
outputStream.close();
}
}
}
/**
* 通过系统 Intent 分享到其他程序
*
* @param message String
* @param imagePath Uri
*/
public static void openShareIntentWithImage(Context context, String message, Uri imagePath) {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(Intent.EXTRA_TEXT, message);
intent.putExtra(Intent.EXTRA_STREAM, imagePath);
intent.setType(MIME_IMAGE_PNG);
context.startActivity(Intent.createChooser(intent, context.getString(R.string.share)));
}
public static void showToast(Context context, String message, int duration) {
Toast.makeText(context, message, duration).show();
}
public static void showShortToast(Context context, String message) {
showToast(context, message, Toast.LENGTH_SHORT);
}
public static void showLongToast(Context context, String message) {
showToast(context, message, Toast.LENGTH_LONG);
}
public static void openShareIntentWithPlainText(Context context, String title, String message) {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra(Intent.EXTRA_TEXT, message);
intent.putExtra(Intent.EXTRA_SUBJECT, title);
intent.putExtra(Intent.EXTRA_TITLE, title);
intent.setType(MIME_PLAIN_TEXT);
context.startActivity(Intent.createChooser(intent, context.getString(R.string.share)));
}
public static void openShareIntentWithPlainText(Context context, String message) {
openShareIntentWithPlainText(context, "", message);
}
public static String inputStream2String(InputStream in) throws IOException {
StringBuffer out = new StringBuffer();
byte[] b = new byte[4096];
for (int n; (n = in.read(b)) != -1; ) {
out.append(new String(b, 0, n));
}
return out.toString();
}
public static boolean isZhihuInstalled(Activity activity) {
PackageInfo packageInfo;
try {
packageInfo = activity.getPackageManager().getPackageInfo("com.zhihu.android", 0);
} catch (PackageManager.NameNotFoundException e) {
packageInfo = null;
e.printStackTrace();
}
return (packageInfo == null) ? false : true;
}
public static void startDetailActivity(Activity activity, ArrayList<Question> questions, int position) {
Intent intent = new Intent(activity, Detail.class);
intent.putExtra(Detail.INTENT_EXTRA_CURRENT_POSITION, position);
intent.putExtra(Detail.INTENT_EXTRA_QUESTIONS, questions);
if (questions.get(position) != null) {
intent.putExtra(Detail.INTENT_EXTRA_CURRENT_QUESTION, questions.get(position));
}
activity.startActivityForResult(intent, Intent.FILL_IN_PACKAGE);
}
}
