TextWatcher用于多个EditText

Question

我想TextWatcher为多个EditText字段实现接口。目前我正在使用：

text1.addTextChangedListener(this);

text2.addTextChangedListener(this);

然后覆盖我的Activity中的方法：

public void afterTextChanged(Editable s) {}

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

public void onTextChanged(CharSequence s, int start, int before, int count) 

{

 // do some operation on text of text1 field

 // do some operation on text of text2 field 

}

但这工作正常，但我正在寻找其他方法，以便可以明确确定当前关注的EditText领域SoftKeyboard。

Answer 1

我会这样：@Overridepublic void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    EditText e = new EditText(this);    e.addTextChangedListener(new CustomTextWatcher(e));}private class CustomTextWatcher implements TextWatcher {    private EditText mEditText;    public CustomTextWatcher(EditText e) {         mEditText = e;    }    public void beforeTextChanged(CharSequence s, int start, int count, int after) {    }    public void onTextChanged(CharSequence s, int start, int before, int count) {    }    public void afterTextChanged(Editable s) {    }}