[英]Is there a way I can have a separate background image for each button in localstorage?
[英]How can I set a Listview with each cell with a separate white background?
列表中每個項目的布局均應為cardview。 您可以在這里查看android文檔: https : //developer.android.com/training/material/lists-cards.html#CardView
您的列表項布局可以如下所示:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
... >
<!-- A CardView that contains a TextView -->
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/card_view"
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="200dp"
card_view:cardCornerRadius="4dp">
<TextView
android:id="@+id/info_text"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v7.widget.CardView>
在CardView小部件內,您可以添加其他元素。
Material Design是有關如何使UI和UX呈現精美外觀的經典指南。
創建帶有空格的卡片視圖的簡單方法可以通過-
<!-- A CardView that contains a TextView -->
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/card_view"
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="200dp"
card_view:cardCornerRadius="4dp">
<TextView
android:id="@+id/info_text"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v7.widget.CardView>
更詳細的代碼-
Android上的RecyclerView和CardView入門
演示-
您可以使用cardview或提供您在適配器中膨脹的布局的頂部標記
我100%確定您會得到白色潛水員
<android.support.v7.widget.RecyclerView
android:id="@+id/manageProRequestRV"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ffffff"/>
和你的適配器布局我喜歡
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_marginTop="@dimen/padding_avarage"
android:background="#00706b">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="@dimen/padding_avarage"
android:orientation="horizontal">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="ID" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="Product Service" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="Category" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="Subcategory" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="Quantity" />
</LinearLayout>
<LinearLayout
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/padding_large"
android:layout_weight="1"
android:orientation="vertical"
android:paddingLeft="@dimen/padding_avarage">
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="13" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="2" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="Bags & luggage" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="Laptop bags" />
<TextView
android:layout_width="wrap_content"
android:layout_height="30dp"
android:gravity="center"
android:paddingRight="@dimen/padding_avarage"
android:text="5" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:id="@+id/view"
android:layout_width="0dp"
android:layout_weight="1"
android:gravity="center_horizontal"
android:background="@color/white"
android:layout_height="wrap_content">
<ImageView
android:layout_width="32dp"
android:layout_height="48dp"
android:layout_gravity="center_horizontal"
android:src="@drawable/view"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:background="@drawable/color_button_selector"
android:text="View"
android:paddingLeft="@dimen/padding_avarage"
android:textSize="@dimen/text_big"
android:textColor="@color/blue_light" />
</LinearLayout>
<View
android:layout_width="1dp"
android:layout_height="match_parent"
android:background="@color/dark_gray" />
<LinearLayout
android:id="@+id/remove"
android:layout_width="0dp"
android:layout_weight="1"
android:gravity="center_horizontal"
android:background="@color/white"
android:layout_height="wrap_content">
<ImageView
android:layout_width="32dp"
android:layout_height="48dp"
android:layout_gravity="center_horizontal"
android:src="@drawable/cancel"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:background="@drawable/color_button_selector"
android:text="Remove"
android:paddingLeft="@dimen/padding_avarage"
android:textSize="@dimen/text_big"
android:textColor="@color/blue_light" />
</LinearLayout>
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="@color/outline" />
</LinearLayout>
這是Custom listview,要實現此目的,我們將使用常規活動和布局xml文件來自定義listview。
在正常的活動xml文件中,將Layout的背景設置為某種顏色,例如,我假設活動xml為activity_main.xml。
activity_main.xml
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#bdbdbd" >
<ListView
android:id="@+id/listView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:clickable="false"
android:layout_margin="10dp"
android:background="#FFFFFF"
android:listSelector="@android:color/transparent"
android:divider="#bdbdbd"
android:dividerHeight="3dip"></ListView>
</RelativeLayout>
在MainActivity.java中
public class MainActivity extends ActionBarActivity
{
ListView listView;
ArrayList<MyData> list = new ArrayList<MyData>();
MyOrderAdapter myadapter;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
listView = (ListView) findViewById(R.id.listView);
//add the data to setter and getter class,
list.add(new MyData("Name","Desc")); //here i am ading only one row, you can do this in loop for multiple rows
myadapter = new MyOrderAdapter(MainActivity.this, R.layout.my_custom_list,list); //myadapter is adapter class used for custom display
//my_custom_list is .xml file used to display the listview row in customised way, need to create new xml file
listView.setItemsCanFocus(false);
listView.setAdapter(myadapter);
myadapter.notifyDataSetChanged();
}
創建MyData.java類
public class MyData {
String name,desc;
public MyData(String name, String desc) {
super();
this.name = name;
this.desc = desc;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
}
my_custom_list.xml
這是您設計如何查看列表視圖行的xml文件,將基於此xml顯示每行
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#00000000"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin">
<LinearLayout
android:id="@+id/linearLayout10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_marginLeft="10dp"
android:orientation="vertical" >
<LinearLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:id="@+id/name"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:fontFamily="sans-serif"
android:text="Name" />
<TextView
android:id="@+id/desc"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="1"
android:ems="10"
android:fontFamily="sans-serif"
android:text="Desc" />
</LinearLayout>
MyOrderAdapter.java
公共類MyOrderAdapter擴展了ArrayAdapter {
Context context;
int layoutResourceId;
ArrayList<MyData> data = new ArrayList<MyData>();
public MyOrderAdapter(Context context, int layoutResourceId,ArrayList<MyData> data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@SuppressLint("ResourceAsColor")
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
UserHolder holder = null;
if (row == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new UserHolder();
holder.name = (TextView) row.findViewById(R.id.name);
holder.desc = (TextView) row.findViewById(R.id.desc);
row.setTag(holder);
} else {
holder = (UserHolder) row.getTag();
}
final MyData mCon = data.get(position);
holder.name.setText(mCon.getName));
holder.desc.setText(mCon.getDesc));
return row;
}
static class UserHolder {
TextView name,desc;
}
}
這將以您提到的相同模式顯示listview。
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