更改导航抽屉汉堡包图标

Question

我正在尝试更改汉堡包菜单图标,NavigationView但我无法这样做.

这是我到目前为止所尝试的

我有一个基本活动,其中导航抽屉设置完成.这是相关的一段代码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    super.setContentView(R.layout.activity_base_nav);
    setSupportActionBar(toolbar);
    setupDrawer();
}

private void setupDrawer() {
    mDrawerLayout.setDrawerListener(this);

    mDrawerToggle = new ActionBarDrawerToggle(this,
            mDrawerLayout,
            R.string.open,
            R.string.close);

    mDrawerToggle = new ActionBarDrawerToggle(mContext,
            mDrawerLayout,
            R.string.open,
            R.string.close);

    mDrawerLayout.setDrawerListener(mDrawerToggle);

    if (getSupportActionBar() != null) {
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDefaultDisplayHomeAsUpEnabled(false);
        mDrawerToggle.setDrawerIndicatorEnabled(false);
       mDrawerToggle.setHomeAsUpIndicator(R.drawable.ic_share_48pt_2x);
    }
    mDrawerToggle.syncState();

    mNavigationView.setNavigationItemSelectedListener(
            menuItem -> {
                mMenuItem = menuItem.getItemId();
                mDrawerUtil.onNavMenuItemClicked(mMenuItem);
                mDrawerLayout.closeDrawers();
                return true;
            });
}

@Override 
public void setContentView(int layoutResID) {
    getLayoutInflater().inflate(layoutResID, mContainer);
}


@Override
protected void onPostCreate(Bundle savedInstanceState) {
    super.onPostCreate(savedInstanceState);
    mDrawerToggle.syncState();
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
    mDrawerToggle.onConfigurationChanged(newConfig);
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    if (mDrawerToggle.onOptionsItemSelected(item)) {
        return true;
    }

    return super.onOptionsItemSelected(item);
}

但它似乎对我不起作用.我也打过电话setDrawerIndicatorEnabled(false),并setHomeAsUpIndicator(R.drawable.ic_share_48pt_2x)于SupportActionBar但这也不起作用.

Answer 1

以下代码对我很有用,

protected void onCreate(Bundle savedInstanceState) {
    ...
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    getSupportActionBar().setDefaultDisplayHomeAsUpEnabled(false);
    toggle.setDrawerIndicatorEnabled(false);
    toggle.setHomeAsUpIndicator(R.drawable.ic_custom_drawer_icon);
    ...
}

我还必须添加一个工具栏导航点击监听器来监听自定义抽屉图标上的点击事件

protected void onCreate(Bundle savedInstanceState) {
    ...
    toggle.setToolbarNavigationClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
            if (drawer.isDrawerOpen(GravityCompat.START)) {
                drawer.closeDrawer(GravityCompat.START);
            } else {
                drawer.openDrawer(GravityCompat.START);
            }
        }
    });
    ...
}

最后,我可以动态更新图标

toggle.setHomeAsUpIndicator(R.drawable.ic_new_icon);

Answer 2

只要用这个:

toolbar.post(new Runnable() {
            @Override
            public void run() {
                Drawable d = ResourcesCompat.getDrawable(getResources(), R.mipmap.ic_launcher, null);
                toolbar.setNavigationIcon(d);
            }
        });

您不需要处理已接受答案的setToolbarNavigationClickListener.