Question

就像从sdcard读取一个txt文件一样，逐一取出每个单词，然后对提取的单词做一些事情。像

String  mm = blure.getAbsolutePath();
StringBuilder text = new StringBuilder();
try {
    BufferedReader br = new BufferedReader(new FileReader(mm));
    String line;
    while((line = br.readLine()) != null) { 

        text.append(line);

        text.append('\n');

然后有些东西可以得到每一个字，并用它做点什么。

Answer 1

这可以像这样实现

editText.addTextChangedListener(new TextWatcher() {
                @Override
                public void onTextChanged(CharSequence s, int start, int before, int count) {

                    if (s.toString().contains("my")) {
                        //do something
                    }
                    else
                        //do something
                }


               @Override
                public void beforeTextChanged(CharSequence s, int start, int count, int after) {

                }

                @Override
                public void afterTextChanged(Editable s) {
                }
            });

Answer 2

实施EditText.OnEditorActionListener public boolean onEditorAction(TextView textView, int action, KeyEvent keyEvent)

如何在将文本输入EditText时实现操作

2 个答案: