Question

我的Android应用中有一个<fragment>地图活动。这是布局：

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <fragment xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="481dp" android:id="@+id/map" tools:context=".MapsActivity"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:id="@+id/button"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:background="@drawable/round"
        android:layout_below="@+id/map" />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/imageView2"
        android:layout_alignParentBottom="true"
        android:layout_alignTop="@+id/button"
        android:layout_alignStart="@+id/button"
        android:layout_alignEnd="@+id/button"
        android:src="@drawable/tick"/>


</RelativeLayout>

然而，当应用程序运行时，它正在消耗整个屏幕，整个屏幕显示地图并显示挤压按钮。

但是，当我在布局阶段设计应用程序时，它会显示正确的格式。

帮助表示赞赏。感谢。

Answer 1

试试这个布局：

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">

    <fragment
        xmlns:tools="http://schemas.android.com/tools"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="8"
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment" />

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="2">

        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=""
            android:id="@+id/button"
            android:layout_alignParentBottom="true"
            android:layout_centerHorizontal="true"
            android:background="@drawable/round"
            android:layout_below="@+id/map" />

        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:adjustViewBounds="true"
            android:id="@+id/imageView2"
            android:layout_alignParentBottom="true"
            android:layout_alignTop="@+id/button"
            android:layout_alignStart="@+id/button"
            android:layout_alignEnd="@+id/button"
            android:src="@drawable/tick" />

    </RelativeLayout>
</LinearLayout>

Answer 2

制作您的布局LinearLayout并为其指定权重。这样的事情。

 <LinearLayout>
    <LinearLayout
      android:layout_weight="0.8"
          >
       <Fragment>
       </fragment>
    </LinearLayout>
    <LinearLayout
      android:layout_weight="0.2"
     >
    <Button></Button>
    </LinearLayout>
 </LinearLayout>

Answer 3

因此，将片段高度设置为wrap_content，将align parent top设置为匹配片段的底部与使用android:layout_above的imageview的顶部

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto">
    <fragment 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:id="@+id/map" tools:context=".MapsActivity"
    android:name="com.google.android.gms.maps.SupportMapFragment"
    android:layout_above="@+id/imageView2"
    android:layout_alignParentTop="true"
    />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:id="@+id/button"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:background="@drawable/round"
        android:layout_below="@+id/map" />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/imageView2"
        android:layout_alignParentBottom="true"
        android:layout_alignTop="@+id/button"
        android:layout_alignStart="@+id/button"
        android:layout_alignEnd="@+id/button"
        android:src="@drawable/tick"/>


</RelativeLayout>

更新

崩溃日志：

08-18 18:26:40.314 3107-3107/abhishekdey.ecosquare D/AndroidRuntime﹕ Shutting down VM --------- beginning of crash 08-18 18:26:40.363 3107-3107/abhishekdey.ecosquare E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: abhishekdey.ecosquare, PID: 3107 java.lang.IllegalStateException: Circular dependencies cannot exist in RelativeLayout at android.widget.RelativeLayout$DependencyGraph.getSortedViews(RelativeLayout.java:1701) at android.widget.RelativeLayout.sortChildren(RelativeLayout.java:381) at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:389) at android.view.View.measure(View.java:17430) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at android.view.View.measure(View.java:17430) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436) at android.widget.LinearLayout.measureVertical(LinearLayout.java:722) at android.widget.LinearLayout.onMeasure(LinearLayout.java:613) at android.view.View.measure(View.java:17430) at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463) at android.widget.FrameLayout.onMeasure(FrameLayout.java:430) at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2560) at android.view.View.measure(View.java:17430) at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2001) at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1166) at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1372) at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054) at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779) at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767) at android.view.Choreographer.doCallbacks(Choreographer.java:580) at android.view.Choreographer.doFrame(Choreographer.java:550) at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753) at android.os.Handler.handleCallback(Handler.java:739) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)

更新：这应该工作

    <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            xmlns:android="http://schemas.android.com/apk/res/android"
            xmlns:app="http://schemas.android.com/apk/res-auto">
            <fragment 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:id="@+id/map" tools:context=".MapsActivity"
            android:name="com.google.android.gms.maps.SupportMapFragment"
            android:layout_above="@+id/bottom_view"
            android:layout_alignParentTop="true"
            />

            <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id = "@+id/bottom_view"
        android:layout_alignParentBottom="true">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text=""
            android:layout_centerInParent="true"
            android:id="@+id/button"
            android:background="@drawable/round" />

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/imageView2"
            android:src="@drawable/tick"/>


        </RelativeLayout>
</RelativeLayout>

Android：Fragment占据整个屏幕

3 个答案: