我需要用自己的自定义Toolbar替换普通的MainActivity。
我使用以下代码但没有显示任何内容：
我的 public class MainActivity extends AppCompatActivity {
private Toolbar mToolbar;
private View mView;
private TabLayout mTabLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mToolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(mToolbar);
mView =
LayoutInflater.from(this).inflate(R.layout.item_toolbar_main, null);
mToolbar.addView(mView);
ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
setupViewPager(viewPager);
mTabLayout = (TabLayout) findViewById(R.id.tabs);
mTabLayout.setupWithViewPager(viewPager);
View view1 = View.inflate(this, R.layout.item_tablayout_item,
null);
view1.findViewById(R.id.icon).setBackgroundResource(R.drawable.ic_solved);
View view2 = View.inflate(this, R.layout.item_tablayout_item,
null);
view2.findViewById(R.id.icon).setBackgroundResource(R.drawable.ic_unsolved)
;
try {
mTabLayout.getTabAt(0).setCustomView(mView);
mTabLayout.getTabAt(1).setCustomView(mView);
} catch (Exception ex) {
//Add crashlitics;
}
} }
：
XML我的MainActivity <android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.divofmod.quizerfield.Activities.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorWhite"
android:paddingBottom="@dimen/activity_margin_quarter"
android:paddingLeft="@dimen/activity_margin_half"
android:paddingRight="@dimen/activity_margin_half"
app:contentInsetEnd="@dimen/activity_margin_zero"
app:contentInsetLeft="@dimen/activity_margin_zero"
app:contentInsetRight="@dimen/activity_margin_zero"
app:contentInsetStart="@dimen/activity_margin_zero"
app:layout_scrollFlags="scroll|enterAlways"/>
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabGravity="fill"
app:tabMode="fixed"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>
：
XML我的Toolbar <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="wrap_content"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
>
<ImageView
android:id="@+id/logoQuizer"
android:layout_width="match_parent"
android:layout_height="@dimen/image_medium"
android:layout_marginBottom="@dimen/activity_margin_half"
android:layout_marginTop="@dimen/activity_margin_half"
android:foregroundGravity="center_vertical"
android:src="@drawable/logo_quizer"/>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@id/logoQuizer"
android:orientation="horizontal">
<ImageView
android:id="@+id/send"
android:layout_width="@dimen/icon_small"
android:layout_height="@dimen/icon_small"
android:layout_alignParentLeft="true"
android:layout_centerHorizontal="true"
android:layout_marginLeft="@dimen/activity_margin_half"
android:src="@drawable/ic_send"/>
<ImageView
android:id="@+id/sort"
android:layout_width="@dimen/icon_small"
android:layout_height="@dimen/icon_small"
android:layout_centerHorizontal="true"
android:layout_marginLeft="@dimen/activity_margin_quarter"
android:layout_marginRight="@dimen/activity_margin_half"
android:layout_toLeftOf="@+id/refresh"
android:src="@drawable/ic_sort"/>
<ImageView
android:id="@+id/refresh"
android:layout_width="@dimen/icon_small"
android:layout_height="@dimen/icon_small"
android:layout_alignParentRight="true"
android:layout_centerHorizontal="true"
android:layout_marginLeft="@dimen/activity_margin_quarter"
android:layout_marginRight="@dimen/activity_margin_half"
android:src="@drawable/ic_refresh"/>
</RelativeLayout>
</RelativeLayout>
项：
AppTheme我的style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<!-- Customize your theme here. -->
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="colorAccent">@color/colorAccent</item>
</style>
：
self.enc_batch = tf.placeholder(tf.int32, [hps.batch_size, None], name='enc_batch')
答案 0 :(得分：1)
最简单的方法是获取整个布局item_toolbar_main并直接在xml中将其设置为Toolbar，而不使用任何Java代码。因此，将布局Toolbar中的activity_main.xml视图更改为以下内容：
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/colorWhite"
android:paddingBottom="@dimen/activity_margin_quarter"
android:paddingLeft="@dimen/activity_margin_half"
android:paddingRight="@dimen/activity_margin_half"
app:contentInsetEnd="@dimen/activity_margin_zero"
app:contentInsetLeft="@dimen/activity_margin_zero"
app:contentInsetRight="@dimen/activity_margin_zero"
app:contentInsetStart="@dimen/activity_margin_zero"
app:layout_scrollFlags="scroll|enterAlways">
<include layout="@layout/item_toolbar_main"/>
</android.support.v7.widget.Toolbar>
这会奏效。我使用了<include>，但您也可以将整个View从布局item_toolbar_main复制并粘贴到android.support.v7.widget.Toolbar的内部，而不是<include layout="@layout/item_toolbar_main">。< / p>
答案 1 :(得分：0)
如果你想替换...为什么你不要只调用setSupportActionBar（theNewToolbar）来替换它？