android - 从工具栏 AppCompat 的 SearchView 中删除后退按钮

Question

当搜索 View 显示在工具栏(AppCompat)中时，如何删除后退按钮图标？

toolbar = (Toolbar) findViewById(R.id.tool_bar);


    // Set an OnMenuItemClickListener to handle menu item clicks
    toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
        @Override
        public boolean onMenuItemClick(MenuItem item) {
            // Handle the menu item
            return true;
        }
    });

    // Inflate a menu to be displayed in the toolbar
    toolbar.inflateMenu(R.menu.menu_main);
    toolbar.setTitle("");


    setSupportActionBar(toolbar);
    actionBar = getSupportActionBar();

    // this works for normal back button but not for one appears on tapping SearchView
    actionBar.setDisplayHomeAsUpEnabled(false);

Answer 1

用途:

getSupportActionBar().setDisplayHomeAsUpEnabled(false);

toolbar.setNavigationIcon(null);

或者

toolbar.setNavigationIcon(getResources().getColor(android.R.color.transparent));