android 读取sd卡文件的内容用TextView显示

//从文件读取文字，显示到当前的页面里

TextView tv1_lxy = (TextView)findViewById(R.id.text_lxy);

File f1 = new File(PATH + "orderdish/file/introduct.txt");

String str = null;

try {

InputStream is = new FileInputStream(f1);

InputStreamReader input = new InputStreamReader(is, "UTF-8");

BufferedReader reader = new BufferedReader(input);

while ((str = reader.readLine()) != null) {

tv1_lxy.append(str);

tv1_lxy.append("\n");

Log.d("餐厅介绍", str);

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}