使用 3 行填充整个屏幕的图像视图创建 gridview

本文介绍了使用 3 行填充整个屏幕的图像视图创建 gridview的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我一直在到处寻找类似的解决方案，但似乎没有一个适合我.

I have been searching everywhere for similar solutions but none seem to work for me.

在我的第一个屏幕上，我将有一个由 1 列和 3 行垂直组成的网格视图.每行将在文本视图顶部有一个图像视图和一个部分透明的文本视图.图像视图可以很好地跨越屏幕宽度.我唯一的问题是 3 个图像视图没有垂直跨越全屏，行之间有空间，尽管我尝试了很多方法来解决这个问题.我将发布我的 xml 文件和代码:

On my first screen I will have a gridview which consists of 1 column and 3 rows vertically. Each row will have an imageview and a partially transparent textview on top of the text view. The imageviews span the screen width fine. My only problem is that the 3 image views do not span the full screen vertically, there is space inbetween rows, although I have tried many methods to fix this. I will post up my xml files and code:

row_layout.xml - 这是网格视图项

row_layout.xml - this is the gridview items

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >

<ImageView
    android:id="@+id/item_image"
    android:adjustViewBounds="true"
    android:scaleType="fitXY"
    android:layout_width="fill_parent"
    android:layout_height="180dp"
    android:src="@drawable/season1">
</ImageView>

<TextView
    android:id="@+id/item_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignLeft="@+id/item_image"
    android:layout_alignTop="@+id/item_image"
    android:layout_alignRight="@+id/item_image"
    android:layout_alignBottom="@+id/item_image"
    android:gravity="bottom|left"
    android:textSize="30sp"
    android:textAlignment="center"
    android:lines="1"
    android:layout_marginTop="145dp"
    android:background="#99000000">


</TextView>

main.xml

<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="fill_parent"
tools:context=".MainActivity" >

<GridView
    android:id="@+id/gridView1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_margin="0dp"
    android:padding="0dp"
    android:gravity="center"
    android:numColumns="1"
    android:fitsSystemWindows="true"
    android:stretchMode="columnWidth" >
</GridView>

我的自定义适配器:

public class CustomGridViewAdapter extends ArrayAdapter<Item> {
Context context;
int layoutResourceId;
ArrayList<Item> data = new ArrayList<Item>();

public CustomGridViewAdapter(Context context, int layoutResourceId, ArrayList<Item> data) {
    super(context, layoutResourceId, data);
    this.layoutResourceId = layoutResourceId;
    this.context = context;
    this.data = data;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View row = convertView;
    RecordHolder holder = null;

    if (row == null) {
        LayoutInflater inflater = ((Activity) context).getLayoutInflater();
        row = inflater.inflate(layoutResourceId, parent, false);
        row.setMinimumHeight(MainActivity.height1/3);

        holder = new RecordHolder();
        holder.txtTitle = (TextView) row.findViewById(R.id.item_text);
        holder.imageItem = (ImageView) row.findViewById(R.id.item_image);
        row.setTag(holder);
    } else {
        holder = (RecordHolder) row.getTag();
    }

    Item item = data.get(position);
    holder.txtTitle.setText(item.getTitle());
    holder.imageItem.setImageBitmap(item.getImage());// my image
    return row;

}

static class RecordHolder {
    TextView txtTitle;
    ImageView imageItem;

}

}

主要活动:

public class MainActivity extends ActionBarActivity {

GridView gridView;
ArrayList<Item> gridArray = new ArrayList<Item>();
CustomGridViewAdapter customGridAdapter;
public static int height1;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    //this.requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.main);

    ActionBar ab = getActionBar();
    ab.setDisplayShowTitleEnabled(false);
    ab.setDisplayShowHomeEnabled(false);

    Resources res = this.getResources();

    Bitmap bMap = BitmapFactory.decodeResource(res, R.drawable.actionbar);
    BitmapDrawable actionBarBackground = new BitmapDrawable(res, bMap);
    ab.setBackgroundDrawable(actionBarBackground);

    //set grid view item

    Bitmap season1Icon = BitmapFactory.decodeResource(res, R.drawable.season1);
    Bitmap season2Icon = BitmapFactory.decodeResource(res, R.drawable.season2);
    Bitmap season3Icon = BitmapFactory.decodeResource(res, R.drawable.season3);


    gridArray.add(new Item(season1Icon,"Season 1"));
    gridArray.add(new Item(season2Icon,"Season 2"));
    gridArray.add(new Item(season3Icon,"Season 3"));

    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    height1 = metrics.heightPixels;

    gridView = (GridView) findViewById(R.id.gridView1);
    customGridAdapter = new CustomGridViewAdapter(this, R.layout.row_grid, gridArray);

    gridView.setAdapter(customGridAdapter);

    gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View v,
                                int position, long id) {
            Intent a = new Intent(MainActivity.this, House.class);
            a.putExtra("Position", position);
            startActivity(a);
        }

    });
}

}

非常感谢任何帮助，我已经花了几个小时试图解决这个问题！

Any help will be greatly appreciated, I've spent hours trying to fix this!

vertically

使用 3 行填充整个屏幕的图像视图创建 gridview

问题描述

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