Android 往自己的APP加入文件

Android 往自己的APP加入文件,首先把自己需要安裝的文件放在工程裡的assert目錄下。然後代碼如下；

1. /** @author xuxin
2. *down load tht simotun file
3. */
4. private void loadSimotunFile(){
5. if(!isFileExist(mexeFilePath))
6. try {
7. InputStream in=getAssets().open("simotun") ;
8. saveToFile(mexeFilePath,in);
9. } catch (IOException e1) {
10. e1.printStackTrace();
11. }
12. }

1. /** @author xuxin
2. * get inputStream,and write it to a new file
3. */
4. public void saveToFile(String fileName, InputStream in) throws IOException {
5. FileOutputStream fos = null;
6. BufferedInputStream bis = null;
7. int BUFFER_SIZE = 1024;
8. byte[] buf = new byte[BUFFER_SIZE];
9. int size = 0;
10. bis = new BufferedInputStream(in);
11. fos = new FileOutputStream(fileName);
12. while ( (size = bis.read(buf)) != -1)
13. fos.write(buf, 0, size);
14. fos.close();
15. bis.close();
16. }