android.widget.EditText#hasFocus ( )源码实例Demo

@JSMethod
public void getSelectionRange(String callbackId) {
  EditText hostView;
  Map<String, Object> result = new HashMap<>(2);
  if ((hostView = getHostView()) != null) {
    int start = hostView.getSelectionStart();
    int end = hostView.getSelectionEnd();

    if (!hostView.hasFocus()) {
      //The default behavior, same as iOS and web
      start = 0;
      end = 0;
    }

    result.put(Constants.Name.SELECTION_START, start);
    result.put(Constants.Name.SELECTION_END, end);
  }
  WXBridgeManager.getInstance().callback(getInstanceId(), callbackId, result, false);
}
 

private static boolean validated(Context context, EditText first_list_title, EditText second_list_title) {
    if (first_list_title == null || second_list_title == null) {
        return false;
    }

    String first_list_titleText = first_list_title.getText().toString().trim();
    String second_list_titleText = second_list_title.getText().toString().trim();

    if (first_list_titleText.equals("")) {
        first_list_title.hasFocus();
        first_list_title.setError(context.getString(R.string.match_first_list_title));
        return false;
    } else if (second_list_titleText.equals("")) {
        second_list_title.hasFocus();
        second_list_title.setError(context.getString(R.string.match_second_list_title));
        return false;
    } else if (second_list_titleText.equals(first_list_titleText)){
        Toast.makeText(context, "Two options cannot be same.", Toast.LENGTH_SHORT).show();
        return false;
    }

    return true;
}
 

public void openIME(final EditText v) {
    final boolean focus = v.requestFocus();
    if (v.hasFocus()) {
        final Handler handler = new Handler(Looper.getMainLooper());
        handler.post(new Runnable() {
            @Override
            public void run() {
                InputMethodManager mgr = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
                boolean result = mgr.showSoftInput(v, InputMethodManager.SHOW_FORCED);
                log.debug("openIME " + focus + " " + result);
            }
        });
    }
}
 

public EditTextSelectionState(@NonNull EditText editText) {
    mEditText = editText;
    mFocused = editText.hasFocus();
    int selectionStart = editText.getSelectionStart();
    int selectionEnd = editText.getSelectionEnd();
    if (selectionStart > selectionEnd && selectionStart != -1 && selectionEnd != -1) {
        mSelectionStart = selectionEnd;
        mSelectionEnd = selectionStart;
    } else {
        mSelectionStart = selectionStart;
        mSelectionEnd = selectionEnd;
    }
}
 

/**
 * 显示发送或更多
 *
 * @param editText
 */
private void checkSendButtonEnable(EditText editText) {
    if (isRobotSession) {
        return;
    }
    String textMessage = editText.getText().toString();
    if (!TextUtils.isEmpty(StringUtil.removeBlanks(textMessage)) && editText.hasFocus()) {
        moreFuntionButtonInInputBar.setVisibility(View.GONE);
        sendMessageButtonInInputBar.setVisibility(View.VISIBLE);
    } else {
        sendMessageButtonInInputBar.setVisibility(View.GONE);
        moreFuntionButtonInInputBar.setVisibility(View.VISIBLE);
    }
}
 

private static boolean validated(Context context, EditText title, EditText first_list_title, EditText second_list_title) {
    if (title == null || first_list_title == null || second_list_title == null) {
        return false;
    }

    String titleText = title.getText().toString().trim();
    String first_list_titleText = first_list_title.getText().toString().trim();
    String second_list_titleText = second_list_title.getText().toString().trim();

    if ("".equals(titleText)) {
        title.hasFocus();
        title.setError(context.getString(R.string.match_main_title));
        return false;
    } else if ("".equals(first_list_titleText)) {
        first_list_title.hasFocus();
        first_list_title.setError(context.getString(R.string.match_first_list_title));
        return false;
    } else if ("".equals(second_list_titleText)) {
        second_list_title.hasFocus();
        second_list_title.setError(context.getString(R.string.match_second_list_title));
        return false;
    } else if (first_list_titleText.equalsIgnoreCase(second_list_titleText)){
        Toast.makeText(context, "Title of two lists cannot be same.", Toast.LENGTH_SHORT).show();
        return false;
    }

    return true;
}