Question

我正在开发Android应用程序我需要在不同设备上安装此应用程序，因此我需要布局完全响应。

我的一项活动是网格视图，其中包含两列，每列包含一个＆＃34; square＆＃34; （图片）。

问题在于我无法适应所有设备（小型，普通型，大型等）的播放。

        GridView gridview = (GridView) findViewById(R.id.gridview);
        gridview.setAdapter(new ImageAdapter(this));

        gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

                Intent i = new Intent();

                switch (position) {

                    case 0:
                        i.setClass(getApplicationContext(), Bacheca.class);
                        startActivity(i);
                        break;

                    case 1:
                        i.setClass(getApplicationContext(), Turni.class);
                        startActivity(i);
                        break;

                    case 2:
                        i.setClass(getApplicationContext(), Utility.class);
                        startActivity(i);
                        break;

                    case 3:
                        i.setClass(getApplicationContext(), Contatti.class);
                        startActivity(i);
                        break;

                    case 4:
                        i.setClass(getApplicationContext(), ScriviBacheca.class);
                        i.putExtra("user_id", id_user);
                        i.putExtra("nome", cognome);
                        i.putExtra("cognome", nome);
                        startActivity(i);
                        break;

                    case 5:
                        i.setClass(getApplicationContext(), Info.class);
                        i.putExtra("user_id", id_user);
                        startActivity(i);
                        break;
                }
            }
        });
    }else{
        connectivityMessage("Nessuna connessione presente, assicurati di avere il traffico dati oppure il Wi-Fi attivato e riprova.");
    }
}



public class ImageAdapter extends BaseAdapter {
    private Context mContext;

    public ImageAdapter(Context c) {
        mContext = c;
    }

    public int getCount() {
        return mThumbIds.length;
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        return 0;
    }

    // create a new ImageView for each item referenced by the Adapter
    public View getView(int position, View convertView, ViewGroup parent) {
        ImageView imageView;
        if (convertView == null) {
            imageView = new ImageView(mContext);
            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
            imageView.setPadding(2, 2, 2, 2);

            int screenLayout = getApplicationContext().getResources().getConfiguration().screenLayout;
            screenLayout &= Configuration.SCREENLAYOUT_SIZE_MASK;

            switch (screenLayout) {
                case Configuration.SCREENLAYOUT_SIZE_SMALL:
                    imageView.setLayoutParams(new GridView.LayoutParams(100, 100));
                    break;

                case Configuration.SCREENLAYOUT_SIZE_NORMAL:
                    imageView.setLayoutParams(new GridView.LayoutParams(330, 330));

                    break;

                case Configuration.SCREENLAYOUT_SIZE_LARGE:
                    imageView.setLayoutParams(new GridView.LayoutParams(280, 280));

                    break;

                case Configuration.SCREENLAYOUT_SIZE_XLARGE:
                    imageView.setLayoutParams(new GridView.LayoutParams(300, 300));
                    break;

                default:
                    imageView.setLayoutParams(new GridView.LayoutParams(100, 100));
                    break;
            }




        } else {
            imageView = (ImageView) convertView;
        }

        imageView.setImageResource(mThumbIds[position]);
        return imageView;
    }

    // references to our images
    private Integer[] mThumbIds = {
            R.drawable.bacheca, R.drawable.turni,
            R.drawable.utility, R.drawable.contatti,
            R.drawable.invia, R.drawable.info
    };
}

这是布局：

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="am.pacrocebianca.MainActivity"
    tools:showIn="@layout/activity_main">

    <GridView xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/gridview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:columnWidth="90dp"
        android:numColumns="2"
        android:verticalSpacing="5dp"
        android:horizontalSpacing="5dp"
        android:stretchMode="columnWidth"
        android:gravity="center"
        />
</RelativeLayout>

此解决方案适用于普通设备和大型设备，但不适用于小型设备，因为布局与普通布局相同。

这是我用来调试我的应用的设备列表：

小型手机：Sony Xperia U（3,5＆＃39;＆＃39;）

普通电话：摩托罗拉moto G 2014（5＆＃39;＆＃39;）

大：平板电脑Acer A1-713（7＆＃39;＆＃39;）

Answer 1

您应该将android:numColumns="2"更改为android:numColumns="auto_fit"
您的GridView将显示尽可能多的列以填充可用空间。

<GridView
    ...
    android:columnWidth="90dp"
    android:numColumns="auto_fit"
/>

如何使网格视图完全响应

1 个答案: