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Android 读写文件的N种写法（待续。。。）
读取raw文件
- // 读取raw文件
- private void rawRead(){
- String ret = "";
- try {
- InputStream is = getResources().openRawResource(R.raw.my_raw);
- int len = is.available();
- byte []buffer = new byte[len];
- is.read(buffer);
- ret = EncodingUtils.getString(buffer, "utf-8");
- is.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- tvTXT.setText(ret);
- }
读取assets文件
- // 读取assets文件
- private void assetsRead(){
- String fileName = "my_assets.txt"; // assets下文件
- // String fileName = "test/my_assets_test.txt"; // assets下子目录文件
- String ret = "";
- try {
- InputStream is = getResources().getAssets().open(fileName);
- int len = is.available();
- byte []buffer = new byte[len];
- is.read(buffer);
- ret = EncodingUtils.getString(buffer, "utf-8");
- is.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- tvTXT.setText(ret);
- }
读取sdcard文件
- // 读取sdcard文件
- private void sdcardRead(){
- String fileName = "/sdcard/my_sdcard.txt"; // assets下文件
- // String fileName = "/sdcard/test/my_sdcard_test.txt"; // sdcard下子目录文件
- String ret = "";
- try {
- FileInputStream fis = new FileInputStream(fileName);
- int len = fis.available();
- byte []buffer = new byte[len];
- fis.read(buffer);
- ret = EncodingUtils.getString(buffer, "UTF-8");
- fis.close();
- } catch (Exception e) {
- e.printStackTrace();
- }
- tvTXT.setText(ret);
- }
运行效果：
