android - 如何使用android逐行读取文本文件并将每一行存储在数组中？可以在android中读取xls文件吗？

Question

其实我想用文件的内容来触发警报。

Answer 1

试试这个 fragment !

try {
  InputStream inputStream = openFileInput("myfile.txt");

if (inputStream != null) {
  InputStreamReader streamReader = new InputStreamReader(inputStream);
  BufferedReader bufferedReader = new BufferedReader(streamReader);

  String l;

  while (( l = bufferedReader.readLine()) != null) {
    // do what you want with the line
  }

}

inputStream.close(); //close the file
  } catch (java.io.FileNotFoundException e) {
//file doesnt exist
}

不要忘记导入!

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;