安卓上"<"在编辑文本上抠门侦听器？

Question

我想做一个函数，当"P_1

Answer 1

postingET.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
            }
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
            }
            @Override
            public void afterTextChanged(Editable s) {
            }
        });

Answer 2

将日志更改为

Log.i("LOL", postingET.getText().toString());