java - 如何根据编辑文本输入字符对数组值进行排序？

Question

我有一个字符串数组，用于在微调器中显示。现在我的需要是

When the user giving their input in the edit text have to sort the array based on the edit text values ans have to show it in the spinner. I cannot get the logic fully.

我已经尝试过这样的。

String[] a1 = { "Android", "Apple", "Andrew", "Ball" }, a2 = null;
EditText mn;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    mn = (EditText) findViewById(R.id.plus);

            a2 = a1;
    mn.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence arg0, int arg1, int arg2,
                int arg3) {
                            Arrays.sort(a1);
            doCall();
        }

        @Override
        public void beforeTextChanged(CharSequence arg0, int arg1,
                int arg2, int arg3) {

        }

        @Override
        public void afterTextChanged(Editable arg0) {

        }
    });

}

protected void doCall() {

    for (int i = 0; i < a1.length; i++) {
        String s = a1[i];
        for (int j = 0; j < mn.getText().toString().length(); j++) {

            if (Character.toLowerCase(s.charAt(j)) == Character
                    .toLowerCase(mn.getText().toString().charAt(j))) {
                if (j == mn.getText().toString().length() - 1) {
                    String temp = a1[0];
                    a1[0] = a2[i];
                    a1[i] = temp;

                } else {
                    continue;
                }
            } else {
                break;
            }
        }
    }
}

如果我给出“a”意味着我得到“Andrew，Ball，Apple，Android” 但我需要显示的是“Andrew，Android，Apple，Ball”我怎样才能实现这一点。提前致谢，

Answer 1

您可以尝试在 doCall() 结束之前调用 Arrays.sort(names)，然后通知您的 Spinner 适配器。