Question

我有片段和fragment_layout，其中包含一些常见的布局，通过include标签，当我尝试以编程方式为包含的布局设置背景颜色时，首次启动片段时正确显示颜色，但在后续启动时，fragment_layout的所有子视图显示以编程方式设置颜色。我在三星-SGH-I467上使用Android 4.1.2进行了测试。

DummyFragment.java

    public class DummyFragment extends Fragment {


        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
            return inflater.inflate(R.layout.dummy_details,container,false);
        }

        @Override
        public void onActivityCreated(Bundle savedInstanceState) {
            super.onActivityCreated(savedInstanceState);

            setSiteAndPhoneText();
            GridView containerAttributes = (GridView) getView().findViewById(R.id.container_attributes_grid);

            List<Map.Entry<String, String>> dataForContainer = getDummyDataForContainer();
            if (dataForContainer != null) {
                ContainerAttributeGridAdapter adapter = new ContainerAttributeGridAdapter(this.getActivity(),
                        dataForContainer);
                containerAttributes.setAdapter(adapter);
            }
        }


        private void setSiteAndPhoneText() {
            // Set Instructions.

            View instructionHolder = getView().findViewById(R.id.includelayout3);
            TextView instructionHeader = (TextView) instructionHolder.findViewById(R.id.attributerowheader);
           instructionHeader.setText("ABC");
            TextView instructionContent = (TextView) instructionHolder.findViewById(R.id.atributerowcontent);
            instructionContent.setText("PQR");


            // Set Contact.
            View contactHolder = getView().findViewById(R.id.includelayout2);
            TextView contactHeader = (TextView) contactHolder.findViewById(R.id.attributerowheader);
            contactHeader.setText("XYZ");
            TextView contactDetails = (TextView) contactHolder.findViewById(R.id.atributerowcontent);
            contactDetails.setText("MNP");
            //contactHolder.setBackgroundColor(Color.RED);


            // Set CustomerDetails
            View customerDetailsHolder = getView().findViewById(R.id.includelayout1);
            TextView customerDetailsText = (TextView) customerDetailsHolder.findViewById(R.id.atributerowcontent);
            TextView customerNameText = (TextView) customerDetailsHolder.findViewById(R.id.attributerowheader);

customerDetailsHolder.setBackgroundColor(Color.RED);
            StringBuilder buffer = new StringBuilder(100);
            customerNameText.setText("DDDDD");
            customerDetailsText.setText("ddddddmmmmm");

        }

        private List<Map.Entry<String, String>> getDummyDataForContainer() {
            List<Map.Entry<String, String>> containerAttributesList = new ArrayList<Map.Entry<String, String>>();
            Map.Entry<String, String> size = new ContainerAttributes<String, String>("Size", "10");
            Map.Entry<String, String> type = new ContainerAttributes<String, String>("Type", "10");
            Map.Entry<String, String> truck = new ContainerAttributes<String, String>("Truck", "10");
            Map.Entry<String, String> material = new ContainerAttributes<String, String>("Material", "10");
            Map.Entry<String, String> wheels = new ContainerAttributes<String, String>("Wheels", "10");
            Map.Entry<String, String> locks = new ContainerAttributes<String, String>("Locks", "10");
            Map.Entry<String, String> lids = new ContainerAttributes<String, String>("Lids", "10");
            Map.Entry<String, String> others = new ContainerAttributes<String, String>("Others", "10");

            containerAttributesList.add(size);
            containerAttributesList.add(type);
            containerAttributesList.add(truck);
            containerAttributesList.add(material);
            containerAttributesList.add(wheels);
            containerAttributesList.add(locks);
            containerAttributesList.add(lids);
            containerAttributesList.add(others);

            return containerAttributesList;

        }
    }

dummy_details.xml

包含没有任何背景的相对布局。

    <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:padding="1dp" >

                <include
                    android:id="@+id/includelayout1"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    layout="@layout/include_layout_details" />

                <GridView
                    android:id="@+id/container_attributes_grid"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_below="@id/includelayout1"
                    android:layout_gravity="center_horizontal"
                    android:layout_marginLeft="3dp"
                    android:layout_marginRight="3dp"
                    android:layout_marginTop="20dp"
                    android:layout_marginBottom="10dp"
                    android:background="#E2E2E2"
                    android:gravity="center_horizontal"
                    android:numColumns="4"
                    android:stretchMode="columnWidth" >
                </GridView>

                <include
                    android:id="@+id/includelayout2"
                    android:layout_width="wrap_content"
                    android:layout_height="match_parent"
                    android:layout_alignParentRight="true"
                    android:paddingLeft="3dp"
                    android:layout_marginRight="3dp"
                    android:layout_above="@id/container_attributes_grid"
                    layout="@layout/include_layout_details" />

                <include
                    android:id="@+id/includelayout3"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginLeft="3dp"
                    android:layout_marginRight="3dp"
                    android:layout_marginTop="10dp"
                    android:layout_marginBottom="10dp"
                    android:layout_below="@id/container_attributes_grid"
                    android:layout_gravity="center"
                    layout="@layout/include_layout_details" />
    </RelativeLayout>

include_layout_details.xml

包含linearlayout，背景为E2E2E2

    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
       android:background="#E2E2E2"
        android:orientation="vertical"
        android:padding="3dp"
        >

        <TextView
            android:id="@+id/attributerowheader"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="left"

            />

        <TextView
            android:id="@+id/atributerowcontent"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:gravity="left"

            android:textStyle="bold"
            />

    </LinearLayout>

注意：我没有包含GridAdapter文件，但GridAdapter正在使用下面的文件进行行显示。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:gravity="center"
    >


    <TextView 
        android:id="@+id/detailsrowheader"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        android:layout_marginBottom="5dp"
       />

    <TextView 
        android:id="@+id/detailsrowcontent"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"

        android:textStyle="bold"
        android:singleLine="true"
        android:layout_marginBottom="10dp"/>

</LinearLayout>

首次启动后，它会显示所有<include>视图的正确颜色，但在下次启动片段后，它会在所有<include>视图和gridview中显示红色。

代码在Nexus 5 6.0中运行良好，但在使用4.1.2 Samsung Tab进行测试时，它无效。

Answer 1

您可以将包含的布局背景及其子视图背景设置为android:background="#00000000"，这样可以使其透明。

然后在你的片段中获得视图的引用;您只需编写

即可在运行时指定背景颜色

view1.setBackgroundColor(Color.BLUE); //your color choice
view2.setBackgroundColor(Color.GREEN);

希望这有帮助。

以编程方式设置包含布局的背景

1 个答案: