前言
Android应用开发,资源文件一般是放在assets路径下,这些资源文件可以是:
图片文件(jpg png bmp)音频文件(wav mp3)文本文件(txt)模型文件
应用启动之后,需要使用这些资源文件,就需要将这些资源文件拷贝出来,一般是拷贝到应用的私有路径下面。
JAVA代码
/*** 拷贝assets文件*/public static boolean copyFileIfNeed(Context context, String srcFilePath, String desFilePath) {Log.d(TAG, "copyFileIfNeed(): srcFilePath= " + srcFilePath + " , desFilePath= " + desFilePath);File desFile = new File(desFilePath);try {if (desFile.exists()) {desFile.delete();}desFile.createNewFile();InputStream in = context.getApplicationContext().getAssets().open(srcFilePath);if (in == null) {Log.e(TAG, "copyFileIfNeed(): the src is NOT existed, FILE= " + srcFilePath);return false;}OutputStream out = new FileOutputStream(desFile);byte[] buffer = new byte[4096];int n;int sum = 0;while ((n = in.read(buffer)) > 0) {sum += n;Log.d(TAG, "copyFileIfNeed(): copy SIZE= " + sum + " B");out.write(buffer, 0, n);out.flush();}in.close();in = null;out.close();out = null;} catch (IOException e) {Log.e(TAG, "copyFileIfNeed(): " + e);desFile.delete();return false;}return true;}
觉得有用的话,可以给我点奖励哦!(微信)