android - CardView 工具栏

Question

我有一个包含 CardView 的 RecyclerView。

我想为每个 CardView 添加一个工具栏，使其看起来和行为都像主工具栏:

[图标] [标题] ......... [按钮] [按钮] [菜单]

我从此处 (http://blog.grafixartist.com/create-a-card-toolbar/) 看到可以在 CardView 中设置实际的 android.support.v7.widget.Toolbar 对象。但它依赖于 setSupportActionBar(...) 来扩充菜单并响应操作。

您认为可以在我的每个 CardView 中重现该行为吗？

Answer 1

您不需要为带有工具栏的卡片 View 设置 setSupportActionBar，除非您需要设置一些特定于 ActionBar 的向上/向后导航操作。

看看这个很好的例子(链接到下面的整个页面):

Thanks Gabriele for all the help. Here is working code:

Activity :

public class MainActivity extends ActionBarActivity {

  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_mai);

      Toolbar toolbar = (Toolbar) findViewById(R.id.card_toolbar);
      toolbar.setTitle("Card Toolbar");
      if (toolbar != null) {
          // inflate your menu
          toolbar.inflateMenu(R.menu.main);
          toolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
              @Override
              public boolean onMenuItemClick(MenuItem menuItem) {
                  return true;
              }
          });
      }

      Toolbar maintoolbar = (Toolbar) findViewById(R.id.toolbar_main);
      if (toolbar != null) {
          // inflate your menu
          maintoolbar.inflateMenu(R.menu.main);
          maintoolbar.setOnMenuItemClickListener(new Toolbar.OnMenuItemClickListener() {
              @Override
              public boolean onMenuItemClick(MenuItem menuItem) {
                  return true;
              }
          });
      }
  }

}

Layout XML File:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar_main"
        android:layout_width="match_parent"
        android:layout_height="@dimen/action_bar_size_x2"
        android:background="@android:color/holo_orange_dark"
        android:minHeight="?attr/actionBarSize" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_below="@+id/toolbar_main"
        android:layout_marginLeft="15dp"
        android:layout_marginRight="15dp"
        android:layout_marginTop="@dimen/action_bar_size"
        android:orientation="vertical" >

        <android.support.v7.widget.CardView
            android:layout_width="match_parent"
            android:layout_height="match_parent" >

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" >

                <android.support.v7.widget.Toolbar
                    android:id="@+id/card_toolbar"
                    android:layout_width="match_parent"
                    android:layout_height="@dimen/action_bar_size"
                    android:background="@android:color/white" />

                <View
                    android:layout_width="match_parent"
                    android:layout_height="1dp"
                    android:background="@android:color/darker_gray" />

                <TextView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_margin="10dp"
                    android:text="@string/app_name"
                    android:textSize="24sp" />
            </LinearLayout>
        </android.support.v7.widget.CardView>
    </LinearLayout>

</RelativeLayout>

Make sure your activity theme is extending Theme.AppCompat.Light.NoActionBar.

Here is what it will look like:

Few things to note:

• If you are using card elevation then you need to altar the margin top so that your card aligns with the main toolbar
• I am still seeing 1-2 pixel margin between bottom of main toolbar and card toolbar. Not sure about what to do in this case. For now, iam aligning it manually.

From: How to create a card toolbar using appcompat v7

请注意，这篇文章的作者根本没有使用过它，所以我很确定您也不需要它来实现您的想法

希望对你有帮助