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：

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