package com.taobao.tae.Mshopping.demo.util;
import android.graphics.*;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.widget.ImageView;
import com.taobao.tae.Mshopping.demo.R;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;
public class RemoteImageHelper {
//sd卡图片保存路径
private final static String ALBUM_PATH = Environment.getExternalStorageDirectory() + "/download_test/";
public void loadImage(final ImageView imageView, final String urlString) {
final String subUrl = urlString.replaceAll("[^\\w]", "");
//imageView.setImageResource(R.drawable.image_indicator);
final Handler handler = new Handler() {
@Override
public void handleMessage(Message message) {
imageView.setImageBitmap((Bitmap) message.obj);
}
};
Runnable runnable = new Runnable() {
public void run() {
Bitmap bitmap = null;
if (isFileExist(subUrl)) {
bitmap = getDiskBitmap(subUrl);
//Log.v("本地读取", subUrl);
} else {// 不存在就下载
try {
InputStream is = download(urlString);
bitmap = BitmapFactory.decodeStream(is);
if (bitmap != null) {
// 保存远程图片
saveFile(bitmap, subUrl);
}
} catch (Exception e) {
bitmap = BitmapFactory.decodeResource(imageView.getResources(), R.drawable.image_fail);
}
}
Message msg = handler.obtainMessage(1, bitmap);
handler.sendMessage(msg);
}
};
new Thread(runnable).start();
}
/**
* 加载 图片为圆形
* @param imageView
* @param urlString
*/
public void loadRoundImage(final ImageView imageView, final String urlString) {
// 正则为文件名
final String subUrl = urlString.replaceAll("[^\\w]", "");
//imageView.setImageResource(R.drawable.image_indicator);
final Handler handler = new Handler() {
@Override
public void handleMessage(Message message) {
imageView.setImageBitmap((Bitmap) message.obj);
}
};
Runnable runnable = new Runnable() {
public void run() {
Bitmap bitmap = null;
if (isFileExist(subUrl)) {
bitmap = getDiskRoundBitmap(subUrl);
//Log.v("本地读取", subUrl);
} else {// 不存在就下载
try {
InputStream is = download(urlString);
bitmap = BitmapFactory.decodeStream(is);
if (bitmap != null) {
// 保存远程图片
saveFile(bitmap, subUrl);
}
} catch (Exception e) {
bitmap = BitmapFactory.decodeResource(imageView.getResources(), R.drawable.image_fail);
}
}
Message msg = handler.obtainMessage(1, bitmap);
handler.sendMessage(msg);
}
};
new Thread(runnable).start();
}
private InputStream download(String urlString)
throws MalformedURLException, IOException {
InputStream inputStream = (InputStream) new URL(urlString).getContent();
return inputStream;
}
public void saveFile(Bitmap bm, String fileName) throws IOException {
File dirFile = new File(ALBUM_PATH);
if (!dirFile.exists()) {
dirFile.mkdir();
}
File myCaptureFile = new File(ALBUM_PATH + fileName);
if (!myCaptureFile.exists()) {
BufferedOutputStream bos = new BufferedOutputStream(
new FileOutputStream(myCaptureFile));
bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);
bos.flush();
bos.close();
} else {
//Log.v("msg", fileName + "存在不下载");
}
}
// 检查文件是否存在
public boolean isFileExist(String FileName) {
File myFile = new File(ALBUM_PATH + FileName);
if (!myFile.exists()) {
return false;
}
return true;
}
// 读取图片
private Bitmap getDiskBitmap(String pathString) {
Bitmap bitmap = null;
try {
File file = new File(ALBUM_PATH + pathString);
if (file.exists()) {
bitmap = BitmapFactory.decodeFile(ALBUM_PATH + pathString);
}
} catch (Exception e) {
// TODO: handle exception
}
return bitmap;
}
private Bitmap getDiskRoundBitmap(String pathString) {
Bitmap bitmap = null;
try {
File file = new File(ALBUM_PATH + pathString);
if (file.exists()) {
bitmap = BitmapFactory.decodeFile(ALBUM_PATH + pathString);
bitmap = toRoundBitmap(bitmap);
}
} catch (Exception e) {
// TODO: handle exception
}
return bitmap;
}
/**
* 转换图片成圆形
*
* @param bitmap 传入Bitmap对象
* @return
*/
public Bitmap toRoundBitmap(Bitmap bitmap) {
int width = bitmap.getWidth();
int height = bitmap.getHeight();
float roundPx;
float left, top, right, bottom, dst_left, dst_top, dst_right, dst_bottom;
if (width <= height) {
roundPx = width / 2;
left = 0;
top = 0;
right = width;
bottom = width;
height = width;
dst_left = 0;
dst_top = 0;
dst_right = width;
dst_bottom = width;
} else {
roundPx = height / 2;
float clip = (width - height) / 2;
left = clip;
right = width - clip;
top = 0;
bottom = height;
width = height;
dst_left = 0;
dst_top = 0;
dst_right = height;
dst_bottom = height;
}
Bitmap output = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect src = new Rect((int) left, (int) top, (int) right, (int) bottom);
final Rect dst = new Rect((int) dst_left, (int) dst_top, (int) dst_right, (int) dst_bottom);
final RectF rectF = new RectF(dst);
paint.setAntiAlias(true);// 设置画笔无锯齿
canvas.drawARGB(0, 0, 0, 0); // 填充整个Canvas
paint.setColor(color);
// 以下有两种方法画圆,drawRounRect和drawCircle
// canvas.drawRoundRect(rectF, roundPx, roundPx, paint);// 画圆角矩形，第一个参数为图形显示区域，第二个参数和第三个参数分别是水平圆角半径和垂直圆角半径。
canvas.drawCircle(roundPx, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));// 设置两张图片相交时的模式,参考http://trylovecatch.iteye.com/blog/1189452
canvas.drawBitmap(bitmap, src, dst, paint); //以Mode.SRC_IN模式合并bitmap和已经draw了的Circle
return output;
}
}