Re: [問題] 創造txt的問題

看板AndroidDev作者nonebelieve (天)時間13年前 (2011/01/20 03:12)推噓6(6推 0噓 1→)

留言7則, 6人參與討論串2/2 (看更多)

感謝各為板友的幫忙問題已解來回一下自己的文給後人爬 ============================================================= Android Data Storage 的方法有五種 http://developer.android.com/guide/topics/data/data-storage.html 若你英文不好這裡有中文版 http://charles-song.blogspot.com/2010/11/data-storage-in-android.html 我是使用 Internal Storage =========================創立檔案並寫入=============================== String FILENAME = "Text"; //看你創立的file要叫什麼名稱 String string = "hello world!"; //你想寫入的字串 deleteFile("hello_file"); //如果你想刪除某個file 就用delete //使用 openFileOutput 取得 FileOutputStream FileOutputStream fos = null; try { fos = openFileOutput(FILENAME, Context.MODE_PRIVATE); } catch (FileNotFoundException e) { e.printStackTrace(); } try { fos.write(string.getBytes()); //寫入string } catch (IOException e){ e.printStackTrace(); } try { fos.close(); } catch (IOException e) { e.printStackTrace(); } ================================讀取檔案內容============================ FileInputStream fis; try { fis = openFileInput(FILENAME); byte[] input = new byte[fis.available()]; while (fis.read(input) != -1) { textview.setText(new String(input)); //我是將取出來的字串用textview顯示 } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } ========================================================================= 以上如有錯誤請指證謝謝收看 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 61.227.122.153

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nowar100

01/20 05:48, , 1^F

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a1234957

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qrtt1

01/20 07:57, , 3^F

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