拉伸GridView以适应全屏

时间:2016-11-16 13:13:15

标签: android android-gridview

我希望在每个网格中拉伸GridView,其中包含ImageViewTextView,以覆盖手机的整个屏幕。

我已经尝试过在线提供的大量解决方案,但这些解决方案都不适用于我。我已经尝试过的一些答案是:

How can I force a GridView to use the whole screen (regardless of display size)?

android How to stretch rows in the gridview to fill screen?

这是我的代码:

activity_layout.xml

<FrameLayout
        android:id="@+id/content_frame"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/gaming">
    <GridView
        android:id="@+id/categoryGridView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:verticalSpacing="1dp"
        android:horizontalSpacing="1dp"
        android:background="@android:color/transparent"
        android:numColumns="2"
        android:stretchMode="columnWidth"
        android:layout_weight="1" />
</FrameLayout>

category_grid_single.xml

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/relativelayout"
android:layout_width="match_parent"
android:layout_height="match_parent" >

<ImageView
    android:id="@+id/gridImageView"
    android:layout_width="60dip"
    android:layout_height="60dip"
    android:scaleType="centerCrop"
    android:gravity="center"
    android:layout_centerInParent="true"
    android:layout_margin="1dp"/>
<TextView
    android:id="@+id/gridImageViewText"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/gridImageView"
    android:layout_margin="5dp"
    android:gravity="center"
    android:textSize="20sp"
    android:textStyle="bold"
    android:layout_centerHorizontal="true"
    android:textColor="@color/colorWhite" />
</RelativeLayout>

CustomAdapter.java

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    // TODO Auto-generated method stub
    View grid;
    if (convertView == null) {

        LayoutInflater inflater = (LayoutInflater) mContext
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        grid = inflater.inflate(R.layout.main_category_grid_single, null);
        grid.setMinimumHeight(mheight/3);//mheight is the Height of the screen

    } else {
        grid = convertView;
    }
    TextView textView = (TextView) grid.findViewById(R.id.gridImageViewText);
    ImageView imageView = (ImageView)grid.findViewById(R.id.gridImageView);
    textView.setText(category[position]);
    imageView.setImageResource(ImageId[position]);
    return grid;
}

我正在努力实现类似于以下图片的GridView。但是目前在设置我的GridView后,我的底部空置空间。如果除了GridView之外还有更好的方法来实现它,那么请提出建议。

enter image description here

这就是我得到的

enter image description here

任何帮助将不胜感激。提前谢谢!

2 个答案:

答案 0 :(得分:4)

使用GridLayoutlayout_columnWeight属性,您可以使用layout_rowWeight而不是GridView来实现此目的。 API级别14中添加了GridLayout,但在API级别21之前未添加这些属性。但您可以使用GridLayout以及layout_columnWeightlayout_rowWeight使用v7 GridLayout Support Library

将属性返回到API级别7
compile 'com.android.support:gridlayout-v7:25.0.1'

然后,您要做的就是确保GridLayout中的每个单元格都相等layout_columnWeightlayout_rowWeight

<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.support.design.widget.AppBarLayout android:id="@+id/app_bar"
        android:layout_width="match_parent" android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar android:id="@+id/toolbar"
            android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"
            app:popupTheme="@style/AppTheme.PopupOverlay"/>

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

    <android.support.v7.widget.GridLayout
        android:id="@+id/recycler"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:columnCount="2"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <FrameLayout
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:background="@color/black_alpha_26">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="YouTube"/>

        </FrameLayout>

        <FrameLayout
            app:layout_columnWeight="1"
            app:layout_rowWeight="1">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="Videos"/>

        </FrameLayout>

        <FrameLayout
            app:layout_columnWeight="1"
            app:layout_rowWeight="1">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="VR Apps"/>

        </FrameLayout>

        <FrameLayout
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:background="@color/black_alpha_26">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="VR Movies"/>

        </FrameLayout>

        <FrameLayout
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:background="@color/black_alpha_26">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="VR Games"/>

        </FrameLayout>

        <FrameLayout
            app:layout_columnWeight="1"
            app:layout_rowWeight="1">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="center"
                android:text="Shop"/>

        </FrameLayout>

    </android.support.v7.widget.GridLayout>

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

这是我得到的结果:

Test GridLayout

答案 1 :(得分:1)

重新列出Bryan's nice solution中描述的网格要点的核对表:

  1. 添加编译指令

    • 目前正在使用: compile 'com.android.support:gridlayout-v7:25.3.1'
  2. 将布局更新为android.support.v7.widget.GridLayout

    • 在这里注意,我最初错过了这个,错误省略了完整的包名
  3. 设置app:columnCount="2"

  4. 使用以下项设置每个网格元素:

    app:layout_columnWeight="1" 
    app:layout_rowWeight="1"
    
  5. 演示xml:

    <?xml version="1.0" encoding="utf-8"?>
    <android.support.v7.widget.GridLayout
        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"
        app:columnCount="2"
        app:rowCount="2"
        app:orientation="horizontal"
        >
    
        <TextView
            android:id="@+id/m1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_gravity="center"
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:text="m1"/>
    
    
        <TextView
            android:id="@+id/m2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_gravity="center"
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:text="m2"/>
    
    
        <TextView
            android:id="@+id/m3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_gravity="center"
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:text="m3"/>
    
    
        <TextView
            android:id="@+id/m4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_gravity="center"
            app:layout_columnWeight="1"
            app:layout_rowWeight="1"
            android:text="m4"/>
    
    
    </android.support.v7.widget.GridLayout>