首先,我要编写一些代码来尝试一些代码:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View rowView = inflater.inflate(R.layout.unit, parent, false);
final TextView unitName = (TextView) rowView.findViewById(R.id.unit_name);
final EditText unitValue = (EditText) rowView.findViewById(R.id.unit_value);
if(units.get(position).getView() == 1) {
unitName.setText(units.get(position).getUnitName());
unitValue.setText("0.00");
} else {
unitName.setVisibility(View.GONE);
unitValue.setVisibility(View.GONE);
}
unitValue.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
//nothing here
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
HashMap<String, Double> conversionFactors = new HashMap<String, Double>();
//CONVERTER CLASS
Converter converter = new Converter(type, unitName.getText().toString(), unitValue.getText().toString());
//CONVERT METHOD
conversionFactors = converter.convert();
//UPDATE ALL OF THE UNITVALUES IN THEIR CURRENT ORDER
}
@Override
public void afterTextChanged(Editable s) {
//nothing here
}
});
return rowView;
}
我有一个HashMap
,其中键是布局中的TextView
个对象,所以我将通过它们并使用相应的值更新相应的EditText
个对象。 HashMap
。
这将在onTextChanged
方法中发生,但问题在于我的理解。既然我已经实例化了视图,那么我可以通过迭代遍历所有EditText
个对象并更新它们吗?或者我只是更新我的ArrayAdapter
?不确定下一步该去哪里...真的很感激一些见解。