Android toolbar inflateMenu 无法加载布局

1、设置toolbar,直接在menu_main中添加item,并设置getSupportActionBar(toolbar),此时加载toolbar和实现点击事件如下:
@Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main_toolbar, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
          
            return true;
        }

        return super.onOptionsItemSelected(item);
    }


2、将toolbar设置为非actionbar形式

main_toolbar = (Toolbar) findViewById(R.id.main_toolbar);
        //setSupportActionBar(main_toolbar);
        main_toolbar.setTitle("MarkIt");
        main_toolbar.setTitleTextColor(getResources().getColor(R.color.white));
        main_toolbar.setNavigationIcon(R.drawable.contact);
        main_toolbar.inflateMenu(R.menu.menu_main_toolbar);
       
        main_toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
            @Override
            public boolean onMenuItemClick(MenuItem item) {
                int menuItemId = item.getItemId();
                if(menuItemId==R.id.action_setting){
                 
                }
                return false;
            }
        });
当调用inflateMenu加载布局时,需要实现点击监听,无需setSupportActionBar(),否则加载的是onCreateOptionsMenu()中的布局

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