[英]How can I delete picture programmatically in Android?
我編寫了一些代碼,使我可以將圖片保存在Android內部存儲器中的數據中。 現在,我想知道是否有一種方法可以從內部存儲中刪除這些圖片。
這是我要保存的內容:
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;
}
}
我試過了,但它不會從數據/數據中刪除。 關於我在做什么錯的任何建議嗎?
public void DeleteImg(String showId) {
File file = new File( PATH + showId +".jpg" );
file.delete();
}
嘗試這個:
File file = new File(selectedFilePath);
boolean deleted = file.delete();
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.