启用禁用的edittext android

Question

I have an edittext and a spinner with two items (" " and "1"). I disabled my edittext. Now what I want to do is enable my edittext when I select 1 in my spinner. But it's not enabling.

public void onCreate(Bundle savedInstanceState) {
.......
                enable();
}

public void enable() {

        Spinner spinner1 = (Spinner) findViewById(R.id.spinner1);
        spinner1.setAdapter(ArrayAdapter.createFromResource(this, R.array.spinner1, android.R.layout.test_list_item));
        EditText edit1 = (EditText) findViewById(R.id.edit1);
        String s1 = spinner1.getSelectedItem().toString();

        edit1.setEnabled(false);

        if (s1.equals("1")) {
            edit1.setEnabled(true);
            edit1.setFocusable(true);
            edit1.setFocusableInTouchMode(true);
        }
}

Answer 1

you should create on change item listener and set it to your spinner. This where you should post the code for enabling the edittext

Answer 2

与微调器进行交互后，可使用微调器的onclick侦听器“监听”，获取微调器在onclick内的值，并根据需要操作其他对象。

Answer 3

Extent OnItemSelectedListener of Spinner class and on

public void onItemSelected(AdapterView<?> parent, View view, 
        int pos, long id) {
    // An item was selected. You can retrieve the selected item using
    // parent.getItemAtPosition(pos)
}

Take the action of enabling and disabling the edit text.

Answer 4

You must implement the method onItemSelected :

Callback method to be invoked when an item in this view has been selected. This callback is invoked only when the newly selected position is different from the previously selected position or if there was no selected item.

public abstract void onItemSelected (AdapterView<?> parent, View view, int position, long id) {
}