[英]How can I delete picture programmatically in Android?
I wrote some code that lets me save pictures in my data/data in Android internal storage. 我编写了一些代码,使我可以将图片保存在Android内部存储器中的数据中。 Now I would like to know if there is a way to delete those pictures from internal storage. 现在,我想知道是否有一种方法可以从内部存储中删除这些图片。
Here is what I have for saving: 这是我要保存的内容:
public boolean saveImg( String showId ) {
try {
URL url = new URL(getImgUrl( showId ));
File file = new File(showId + ".jpg");
/* Open a connection to that URL. */
URLConnection ucon = url.openConnection();
//Define InputStreams to read from the URLConnection.
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
//Read bytes to the Buffer until there is nothing more to read(-1).
ByteArrayBuffer baf = new ByteArrayBuffer(50);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
//Convert the Bytes read to a String.
FileOutputStream fos = new FileOutputStream(PATH+file);
fos.write(baf.toByteArray());
fos.close();
return true;
} catch (IOException e) {
return false;
}
}
I tried this but it doesn't delete from data/data. 我试过了,但它不会从数据/数据中删除。 Any suggestions as to what I'm doing wrong? 关于我在做什么错的任何建议吗?
public void DeleteImg(String showId) {
File file = new File( PATH + showId +".jpg" );
file.delete();
}
Try this: 尝试这个:
File file = new File(selectedFilePath);
boolean deleted = file.delete();
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