/**
* 压缩图片直到容量小于指定值(kb)，并保存到sdcard
*
* @param relativePath
* @param fileName
* @param bm
* @param capacity
* @return
*/
public static int saveBitmap2SDWithCapacity(
String relativePath, String fileName, Bitmap bm, int capacity) {
if (!relativePath.endsWith("/")) {
relativePath = relativePath + "/";
}
File file = null;
FileOutputStream out = null;
ByteArrayInputStream bais = null;
try {
creatSDDir(relativePath);
file = creatSDFile(relativePath + fileName);
out = new FileOutputStream(file.getPath());
// bm.compress(Bitmap.CompressFormat.JPEG, 90, out);
bais = compressImage(bm, capacity);
byte[] buffer = new byte[1024];
int len = 0;
while ((len = bais.read(buffer)) != -1) {
out.write(buffer, 0, len);
}
out.flush();
return 0;
} catch (Exception e) {
e.printStackTrace();
return -1;
} finally {
ABIOUtil.closeIO(out, bais);
}
}
/**
* 先质量压缩到指定百分比（0% ~ 90%），再把bitmap保存到sd卡上
*
* @param filePath
* @param bm
* @param quality
* @return
*/
public static int saveBitmap2SDAbsolute(String filePath, Bitmap bm, int quality) {
File file = null;
FileOutputStream out = null;
try {
file = new File(filePath);
if (!file.exists()) {
file.createNewFile();
}
out = new FileOutputStream(file.getPath());
bm.compress(Bitmap.CompressFormat.JPEG, quality, out);
return 0;
} catch (Exception e) {
e.printStackTrace();
return -1;
} finally {
ABIOUtil.closeIO(out);
}
}
/**
* 先质量压缩到指定百分比（0% ~ 90%），再把bitmap保存到sd卡上
*
* @param relativePath
* @param fileName
* @param bm
* @param quality
* @return
*/
public static int saveBitmap2SD(String relativePath, String fileName, Bitmap bm, int quality) {
if (!relativePath.endsWith("/")) {
relativePath = relativePath + "/";
}
File file = null;
FileOutputStream out = null;
try {
creatSDDir(relativePath);
file = creatSDFile(relativePath + fileName);
out = new FileOutputStream(file.getPath());
bm.compress(Bitmap.CompressFormat.JPEG, quality, out);
return 0;
} catch (Exception e) {
e.printStackTrace();
return -1;
} finally {
ABIOUtil.closeIO(out);
}
}
/** 将一个InputStream里面的数据写入到SD卡中 */
public static File write2SDFromInput(String relativePath, String fileName, InputStream input) {
if (!relativePath.endsWith("/")) {
relativePath = relativePath + "/";
}
File file = null;
OutputStream output = null;
try {
creatSDDir(relativePath);
file = creatSDFile(relativePath + fileName);
output = new FileOutputStream(file);
byte buffer[] = new byte[4 * 1024];
int length = 0;
while ((length = input.read(buffer)) != -1) {
output.write(buffer, 0, length);
}
output.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
ABIOUtil.closeIO(output);
}
return file;
}
