Question

我有一个带有导航抽屉的活动类。我想从导航抽屉里从一个片段转到另一个片段时更改操作栏颜色。我该怎么做。

我的代码与此类似：http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/

Plz帮助。

Answer 1

和我一样，我也有一个导航抽屉。所以在app_bar_main.xml布局中找到AppBarLayout

private void AddRow()
{
    if (Session["CurrentTable"] != null)
    {
        DataTable table = (DataTable)Session["CurrentTable"];
        DataRow row = table.NewRow();
        row[0] = ddl_CommodityID.Text.Trim();
        row[1] = txt_CommodityName.Text.Trim();
        row[2] = txt_Unit.Text.Trim();
        decimal price = decimal.Parse(txt_Price.Text.Trim());
        decimal quantity = decimal.Parse(txt_Quantity.Text.Trim());
        decimal taxrate = decimal.Parse(txt_TaxRate.Text.Trim());
        decimal vat = taxrate * quantity * price / 100;
        decimal totalamount = quantity * price;
        row[3] = price;
        row[4] = quantity;
        row[5] = totalamount;
        row[6] = vat;
        for (int i = 0; i <= table.Rows.Count ; i++)
        {
            txt_TotalAmount.Text = table.Compute("Sum(TotalAmount)", "").ToString();
            txt_TotalTax.Text = table.Compute("Sum(VATtax)", "").ToString();
        }
        int insertPosition = table.Rows.Count;
        table.Rows.InsertAt(row, insertPosition);
        CommodityList.DataSource = table;
        CommodityList.DataBind();
        Session["CurrentTable"] = table;
    }
    else
    {
        AddTable();
        DataRow row = table.NewRow();
        row[0] = ddl_CommodityID.Text.Trim();
        row[1] = txt_CommodityName.Text.Trim();
        row[2] = txt_Unit.Text.Trim();
        decimal price = decimal.Parse(txt_Price.Text.Trim());
        decimal quantity = decimal.Parse(txt_Quantity.Text.Trim());
        decimal taxrate = decimal.Parse(txt_TaxRate.Text.Trim());
        decimal vat = taxrate * quantity * price / 100;
        decimal totalamount = quantity * price;
        totalpayment = totalamount + vat;
        row[3] = price;
        row[4] = quantity;
        row[5] = totalamount;
        row[6] = vat;
        for (int i = 0; i <= table.Rows.Count ; i++)
        {
            txt_TotalAmount.Text = table.Compute("Sum(TotalAmount)", "").ToString();
            txt_TotalTax.Text = table.Compute("Sum(VATtax)", "").ToString();
        }
        int insertPosition = table.Rows.Count;
        table.Rows.InsertAt(row, insertPosition);
        CommodityList.DataSource = table;
        CommodityList.DataBind();
        Session["CurrentTable"] = table;
    }
}

您可以更改其背景。我希望这可能会有所帮助

Answer 2

您可以使用android.support.v7.widget.Toolbar执行此操作。创建一个这样的布局文件：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:background="#cc00ff"
    android:layout_height="?android:attr/actionBarSize" />

要在布局中包含工具栏布局，请执行

<include android:id="@+id/toolBar" layout="@layout/custom_toolbar" />

然后，对于您在displayView()方法中返回的每个片段，您可以像这样修改它：

@Override
    public void onActivityCreated(Bundle savedInstanceState) {
        ((ActionBarActivity) getActivity()).getSupportActionBar().setColor(Color.GREEN);
        super.onActivityCreated(savedInstanceState);

    }

然后您的HostActivity是MainActivity，您可以设置工具栏，如：

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar tb = (Toolbar)findViewById(R.id.toolBar); 
        setSupportActionBar(tb);
        mTitle = mDrawerTitle = getTitle();

        // load slide menu items
        navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);

        // nav drawer icons from resources
        navMenuIcons = getResources()
                .obtainTypedArray(R.array.nav_drawer_icons);

        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.list_slidermenu);

        navDrawerItems = new ArrayList<NavDrawerItem>();

        // adding nav drawer items to array
        // Home
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
        // Find People
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
        // Photos
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
        // Communities, Will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1), true, "22"));
        // Pages
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
        // What's hot, We  will add a counter here
        navDrawerItems.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1), true, "50+"));


        // Recycle the typed array
        navMenuIcons.recycle();

        mDrawerList.setOnItemClickListener(new SlideMenuClickListener());

        // setting the nav drawer list adapter
        adapter = new NavDrawerListAdapter(getApplicationContext(),
                navDrawerItems);
        mDrawerList.setAdapter(adapter);

        // enabling action bar app icon and behaving it as toggle button
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
                R.drawable.ic_drawer, //nav menu toggle icon
                R.string.app_name, // nav drawer open - description for accessibility
                R.string.app_name // nav drawer close - description for accessibility
        ) {
            public void onDrawerClosed(View view) {
                getActionBar().setTitle(mTitle);
                // calling onPrepareOptionsMenu() to show action bar icons
                invalidateOptionsMenu();
            }

            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(mDrawerTitle);
                // calling onPrepareOptionsMenu() to hide action bar icons
                invalidateOptionsMenu();
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            // on first time display view for first nav item
            displayView(0);
        }
    }

使您的MainActivity扩展ActionBarActivity而不是Activity，并在styles.xml中修改您的主题：

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
    </style>

希望它有所帮助!!!

Answer 3

尝试

<item name="colorControlNormal">@color/colorControlNormal</item>

为我工作

导航抽屉：操作栏颜色变化

3 个答案: