防止OOM,即压缩Bitmap图片
// 压缩图片大小
public Bitmap reBitmap(String path) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = false;
// 使图片大小为原来的1/4
options.inSampleSize = 4;
Bitmap bitmap = BitmapFactory.decodeFile(path, options);
return bitmap;
}
文件的重命名
File file1=new File(path);
File file2=new File(pastePath);
boolean flag = file1.renameTo(file2);
根据时间选取以时间命名的图片
// 返回图片路径
public ArrayList<String> GetFilePath(Long commitTime) {
// File file_ = new File(isSdcard() + photoPath);
File file_ = new File(photoPath);
File[] files = file_.listFiles();
ArrayList<String> myFilePath = new ArrayList<String>();
if (files != null) {
Log.v("Camera", "进入判断");
int count = files.length;
System.out.println(count);
for (int i = 0; i < count; i++) {
File file = files[i];
String filepath = file.getAbsolutePath(); // 得到路径
Log.v("路径1---", filepath);
// pathTime为拍照时间,此判断用来选择一次任务的照片
Long pathTime = Long.parseLong(filepath.substring(
photoPath.length(), photoPath.length()
+ commitTime.toString().length()));
if (commitTime - pathTime <= 0) {
if (filepath.endsWith("jpg") || filepath.endsWith("gif")
|| filepath.endsWith("bmp")
|| filepath.endsWith("png")) {
// 把路径存入容器中
myFilePath.add(filepath);
Log.v("路径3---", filepath);
System.out.println("size is " + myFilePath.size());
}
}
}
}
return myFilePath;
}