Question

我正在使用CoordinatorLayout来获得此效果：

这是布局代码：

    <?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/coordinatorRootLayout"
    android:background="@android:color/background_light"
    android:fitsSystemWindows="true"
    >


<android.support.design.widget.AppBarLayout
            android:id="@+id/android_appbar_layout"
            android:layout_width="match_parent"
            android:layout_height="220dp"
            android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

            <android.support.design.widget.CollapsingToolbarLayout
                android:id="@+id/collapsingToolbarLayoutAndroidExample"
                android:layout_width="match_parent"
                android:background="#fff"
                app:collapsedTitleGravity="left"
                app:expandedTitleTextAppearance="@color/card_outline"
                android:layout_height="match_parent"
                app:layout_scrollFlags="scroll|exitUntilCollapsed"
                android:fitsSystemWindows="true"
                app:expandedTitleGravity="center_horizontal"
                app:contentScrim="?attr/colorPrimary"
                app:statusBarScrim="?attr/colorPrimary"
                app:expandedTitleMarginStart="32dp"
                app:expandedTitleMarginEnd="48dp">

            <ImageView
                    android:id="@+id/parallax_header_imageview"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:scaleType="fitXY"
                    android:src="@drawable/orange_triangle"
                    app:layout_collapseMode="parallax"
                    app:layout_collapseParallaxMultiplier="0.8"/>


                <ImageView
                    app:expandedTitleGravity="center_horizontal"
                    android:id="@+id/someImage"
                    android:layout_width="100dp"
                    android:layout_height="100dp"
                    android:src="@drawable/circle"
                    android:layout_gravity="center_horizontal"
                    app:layout_collapseMode="parallax"
                    app:layout_collapseParallaxMultiplier="-1"
                    />
                <android.support.v7.widget.Toolbar
                    android:id="@+id/toolbar_android"
                    android:layout_width="match_parent"
                    android:layout_height="?attr/actionBarSize"
                    app:layout_collapseMode="none"
                    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
                    app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar" />

            </android.support.design.widget.CollapsingToolbarLayout>


        </android.support.design.widget.AppBarLayout>
    <android.support.v4.widget.NestedScrollView
            android:id="@+id/nested_scroll_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:fillViewport="true"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">

            <LinearLayout
                android:id="@+id/linear_layout_android"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:padding="15dp"
                android:background="@color/off_white"
                android:layout_gravity="center_horizontal"
                android:gravity="center_horizontal"
                android:orientation="vertical">

                <GridView
                    android:id="@+id/gridview_parallax_header"
                    android:layout_width="fill_parent"
                    android:layout_height="fill_parent"
                    android:columnWidth="100dp"
                    android:gravity="center"
                    android:numColumns="auto_fit"
                    android:stretchMode="columnWidth" />

            </LinearLayout>

        </android.support.v4.widget.NestedScrollView>


    </android.support.design.widget.CoordinatorLayout>

这是我得到的输出如何使用带有标题文本的图标？

Answer 1

您可以尝试以下

Reference for Co-Ordinator Layout

现在在MainActivity.java

内

private void handleToolbarTitleVisibility(float percentage) {
    if (percentage >= PERCENTAGE_TO_SHOW_TITLE_AT_TOOLBAR) {

        if(!mIsTheTitleVisible) {
            startAlphaAnimation(textviewTitle, ALPHA_ANIMATIONS_DURATION, View.VISIBLE);
            toolbar.setAlpha(0.9f);
            toolbar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(R.color.Primary)));
            mIsTheTitleVisible = true;
        }
    } 
    else {
        if (mIsTheTitleVisible) {
            startAlphaAnimation(textviewTitle, ALPHA_ANIMATIONS_DURATION, View.INVISIBLE);
            toolbar.setBackgroundDrawable(new ColorDrawable(getResources().getColor(android.R.color.transparent)));
            mIsTheTitleVisible = false;
        }
    }
}

注意：展开后，请保持工具栏背景透明。

Answer 2

您可以参考此示例： -

android ParallaxHeaderViewPager

Answer 3

我建议你试试Childs and dependencies

      public boolean onDependentViewChanged(     
      CoordinatorLayout parent, 
      CircleImageView avatar, 
      View dependency) {     

      modifyAvatarDependingDependencyState(avatar, dependency);
   }

   private void modifyAvatarDependingDependencyState(
    CircleImageView avatar, View dependency) {
        //  avatar.setY(dependency.getY());
        //  avatar.setBlahBlat(dependency.blah / blah);
    }

http://www.devexchanges.info/2016/03/android-tip-custom-coordinatorlayout.html

CollapsingToolbarLayout with a custom view

Answer 4

在科特林

    private fun handleToolbarTitleVisibility(percentage: Float) {
    if (percentage >= PERCENTAGE_TO_SHOW_TITLE_AT_TOOLBAR) {
        if (!mIsTheTitleVisible) {
            startAlphaAnimation(textviewTitle, ALPHA_ANIMATIONS_DURATION, View.VISIBLE)
            toolbar.alpha = 0.9f
            toolbar.setBackgroundDrawable(ColorDrawable(resources.getColor(R.color.Primary)))
            mIsTheTitleVisible = true
        }
    } else {
        if (mIsTheTitleVisible) {
            startAlphaAnimation(textviewTitle, ALPHA_ANIMATIONS_DURATION, View.INVISIBLE)
            toolbar.setBackgroundDrawable(ColorDrawable(resources.getColor(android.R.color.transparent)))
            mIsTheTitleVisible = false
        }
    }
}

Answer 5

可能会解决您的问题：

您可以使用以下CollapsingToolbarLayout属性将展开的标题放在任何位置：

app:expandedTitleGravity        default is bottom|left -or- bottom|start
app:expandedTitleMargin
app:expandedTitleMarginBottom
app:expandedTitleMarginStart
app:expandedTitleMarginEnd

布局代码文件：

<android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapse_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            android:fitsSystemWindows="true">

            <ImageView
                android:id="@+id/bgheader"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scaleType="centerCrop"
                android:fitsSystemWindows="true"
                android:background="@drawable/sunflowerpic"
                app:layout_collapseMode="pin" />

            <android.support.v7.widget.Toolbar
                android:id="@+id/MyToolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                app:layout_collapseMode="parallax" />

        </android.support.design.widget.CollapsingToolbarLayout>

然后在你的java文件SetTitle：

 CollapsingToolbarLayout collapsingToolbar =
                (CollapsingToolbarLayout) findViewById(R.id.collapse_toolbar);
        collapsingToolbar.setTitle("Title");

在顶角添加图标：与ImagView一起使用app:layout_collapseMode="pin"。例如，

<ImageView
            android:id="@+id/someImage"
            android:layout_width="56dp"
            android:layout_height="wrap_content"
            android:src="@drawable/someDrawable"
            android:padding="16dp"
            android:layout_gravity="top|end"
            app:layout_collapseMode="pin"
            />

参考此链接Collapsing Toolbar Example

在CollapsingToolbarLayout中添加带标题的图标

5 个答案: