检查所有edittext是否为空的方法始终返回true

boolean isAllEditTextFilled(ViewGroup viewGroup) {
    for (int i = 0; i < viewGroup.getChildCount(); i++) {
        View view = viewGroup.getChildAt(i);
        if (view instanceof EditText) {
            EditText editText = (EditText) view;
            if (editText.getText().toString().trim().isEmpty()) {
                return false;
            }
        } else if (view instanceof ViewGroup) {
            boolean isFilled = isAllEditTextFilled((ViewGroup) view);
            if (!isFilled) {
                return false;
            }
        }
    }
    return true;
}

EditText editText1 = findViewById(R.id.editText1);
EditText editText2 = findViewById(R.id.editText2);
// 其他EditText控件的初始化

boolean isAllFilled = isAllEditTextFilled((ViewGroup) findViewById(R.id.rootLayout));
if (isAllFilled) {
    // 所有EditText都不为空
} else {
    // 存在空的EditText
}