Question

如何在此功能中删除图像所选部分的颜色，非常感谢您的帮助，第一个代码是onnavigationitemselected，第二个是我要删除所选颜色的颜色< / p>

public boolean onNavigationItemSelected(MenuItem item) {
        // Handle navigation view item clicks here.
        int id = item.getItemId();

        if (id == R.id.nav_mapa)
        {
            // Handle the home action
            MapFragment mapFragment = new MapFragment();
            FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
            fragmentTransaction.replace(R.id.fragment_container, mapFragment);
            fragmentTransaction.commit();

        } else if (id == R.id.nav_anuncios)
        {
            AnunciosFragment anunciosFragment = new AnunciosFragment();
            FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
            fragmentTransaction.replace(R.id.fragment_container, anunciosFragment);
            fragmentTransaction.commit();
        } else if (id == R.id.nav_adopciones)
        {
            AdopcionesFragment adopcionesFragment = new AdopcionesFragment();
            FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
            fragmentTransaction.replace(R.id.fragment_container, adopcionesFragment);
            fragmentTransaction.commit();
        } else if (id == R.id.nav_protectoras)
        {
            ProtectorasFragment protectorasFragment = new ProtectorasFragment();
            FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
            fragmentTransaction.replace(R.id.fragment_container, protectorasFragment);
            fragmentTransaction.commit();
        } else if (id == R.id.nav_ajustes)
        {
            Toast.makeText(this, "Ajustes clicked", Toast.LENGTH_SHORT).show();
        } else if (id == R.id.nav_contacto)
        {
            Toast.makeText(this, "Contacto Clicked", Toast.LENGTH_SHORT).show();
        }

        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);

        return true;

    }

Perfil功能：

public void Perfil(View view)
    {
        HomeFragment homeFragment = new HomeFragment();
        FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
        fragmentTransaction.replace(R.id.fragment_container, homeFragment);
        fragmentTransaction.commit();
        //per tancar NAV al seleccionar
        DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);

    }

想要消除选择的图片：

Answer 1

你可以这样做：

public boolean onNavigationItemSelected(MenuItem item) {

        switch (item.getItemId()) {
            case R.id.nav_camera:

                break;
            case R.id.nav_gallery:

                break;
        }
        mDrawerLayout.closeDrawer(GravityCompat.START);

        return false;
    }

return false表示未经检查的状态。

或者你可以这样做：

drawer.getMenu().findItem(R.id.nav_camera).setChecked(false);

Answer 2

您需要检查false取消选择菜单项

navigationView.getMenu().getItem(3).setChecked(false);

getItem(3)表示您需要传递菜单项的索引

如何取消选择导航抽屉中的菜单部分？

2 个答案: