package com.youkes.browser.utils;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Environment;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.security.MessageDigest;
import java.util.ArrayList;
public class ImageUtil {
public static Bitmap getBitmap(String src) {
try {
URL url = new URL(src);
HttpURLConnection connection = (HttpURLConnection) url
.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
return myBitmap;
} catch (IOException e) {
return null;
}
}
public static Bitmap getBitmap2(String imagePath) {
if (!(imagePath.length() > 5)) {
return null;
}
File cache_file = new File(new File(
Environment.getExternalStorageDirectory(), "xxxx"),
"cachebitmap");
cache_file = new File(cache_file, getMD5(imagePath));
if (cache_file.exists()) {
return BitmapFactory.decodeFile(getBitmapCache(imagePath));
} else {
try {
URL url = new URL(imagePath);
HttpURLConnection conn = (HttpURLConnection) url
.openConnection();
conn.setConnectTimeout(5000);
if (conn.getResponseCode() == 200) {
InputStream inStream = conn.getInputStream();
File file = new File(new File(
Environment.getExternalStorageDirectory(), "xxxx"),
"cachebitmap");
if (!file.exists()) {
file.mkdirs();
}
file = new File(file, getMD5(imagePath));
FileOutputStream out = new FileOutputStream(file);
byte buff[] = new byte[1024];
int len = 0;
while ((len = inStream.read(buff)) != -1) {
out.write(buff, 0, len);
}
out.close();
inStream.close();
return BitmapFactory.decodeFile(getBitmapCache(imagePath));
}
} catch (Exception e) {
}
}
return null;
}
/**
*
* 获取缓存
*
* @param url
*
* @return
*/
public static String getBitmapCache(String url) {
File file = new File(new File(
Environment.getExternalStorageDirectory(), "xxxx"),
"cachebitmap");
file = new File(file, getMD5(url));
if (file.exists()) {
return file.getAbsolutePath();
}
return null;
}
// 加密为MD5
public static String getMD5(String content) {
try {
MessageDigest digest = MessageDigest.getInstance("MD5");
digest.update(content.getBytes());
return getHashString(digest);
} catch (Exception e) {
}
return null;
}
private static String getHashString(MessageDigest digest) {
StringBuilder builder = new StringBuilder();
for (byte b : digest.digest()) {
builder.append(Integer.toHexString((b >> 4) & 0xf));
builder.append(Integer.toHexString(b & 0xf));
}
return builder.toString().toLowerCase();
}
public static ArrayList<String> processImageDisplayUrl(
ArrayList<String> imgs) {
ArrayList<String> ret=new ArrayList<String>();
for(int i=0;i<imgs.size();i++){
String img=imgs.get(i);
if(img.indexOf("http")==0){
ret.add(img);
}else{
ret.add("file://"+img);
}
}
return ret;
}
}
