Question

我有以下代码，onOptionItemSelected（）从不运行。它永远不会到达Log.i("", "switch");任何人都知道为什么？

@Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getSupportMenuInflater().inflate(R.menu.category_menu, menu);
        Log.i("", "created menu");
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        Log.i("", "switch");
        switch (item.getItemId()) {
        case 0:
            Log.i("", "case 0");
            search = (EditText) item.getActionView();
            search.addTextChangedListener(filterTextWatcher);
            search.requestFocus();
            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.toggleSoftInput(InputMethodManager.SHOW_FORCED, 0);

        }
        return true;
    }

    private TextWatcher filterTextWatcher = new TextWatcher() {
        public void afterTextChanged(Editable s) {
        }

        public void beforeTextChanged(CharSequence s, int start, int count,
                int after) {
        }

        public void onTextChanged(CharSequence s, int start, int before,
                int count) {
            Log.d("", "my search logic");
        }

    };

Answer 1

也许你想要更好的东西。 SearchView已经有一个侦听器来处理查询。

onCreateOptionsMenu（菜单菜单）中的

：

    MenuInflater inflater = getMenuInflater();
    inflater.inflate(R.menu.menu_main, menu);

    MenuItem searchItem = menu.findItem(R.id.action_search);
    mSearchView = (SearchView) searchItem.getActionView();
    mSearchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String s) {
            Log.w("SEARCH","Search: "+s);
            startSearch(s,true,null,true);
            return false;
        }

        @Override
        public boolean onQueryTextChange(String s) {
            Log.w("SEARCH","Typing: "+s);
            return false;
        }
    });

Answer 2

你真的在category_menu中有任何菜单项吗？触摸菜单中的项目时会调用onOptionsItemSelected，而不仅仅是在打开菜单本身时。如果你有菜单项，请触摸一个，然后在LogCat中你应该看到你的＆＃34;开关＆＃34;日志声明。

我无法在操作栏上的搜索字段中检测到文本更改

2 个答案: