Question

如何使用片段将图片从@drawable加载到ImageView？在每个片段中我都有其他图片。随着String的数组工作，但图片没有。它只返回0.

XML数组（PS。也不起作用）

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <array name="images">
        <item>@drawable/one</item>
        <item>@drawable/two</item>
    </array>
</resources >

XML视图：

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="fill_parent"
        android:layout_height="0dp"
        android:layout_weight="15" />

JAVA：

public class ShowElements extends Fragment {

    final static String ARG_POSITION = "position";
    int mCurrentPosition = -1;
    String[] authorsNicks;
    int[] imageMain;

public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState) {
                ...
        authorsNicks = res.getStringArray(R.array.authors_nicks);
        imageMain = res.getIntArray(R.array.images);
        return...
   }

public void updateArticleView(int position) {
        TextView autorTextView = (TextView) getActivity().findViewById(
                R.id.author);
            autorTextView.setText(authorsNicks[position]);

         //image.setImageResource(R.drawable.one); It load picture
        image.setImageResource(imageMain[position]); //No picture in view
        Log.i("qwerty",String.valueOf(imageMain[position])); // 0 in LogCat

        mCurrentPosition = position;
    }

Answer 1

您想要做的是：

TypedArray typedArray = res.obtainTypedArray(R.array.images);

...

image.setImageDrawable(typedArray.getDrawable(position, -1));

Answer 2

你必须做下一个：

public class ShowElements扩展Fragment {
final static String ARG_POSITION = "position";
int mCurrentPosition = -1;
String[] authorsNicks;
TypeArray imageMain;
public View onCreateView（LayoutInflater inflater，ViewGroup容器， Bundle savedInstanceState）{
            ...

    authorsNicks = res.getStringArray(R.array.authors_nicks);
    imageMain = res.obtainTypedArray(R.array.images);
    return...    }
public void updateArticleView（int position）{ TextView autorTextView =（TextView）getActivity（）。findViewById（ R.id.author）; autorTextView.setText（authorsNicks [位置]）;
     //image.setImageResource(R.drawable.one); It load picture
    image.setImageResource(imageMain.getResourceId(position, -1)); //It should load your picture
    Log.i("qwerty",String.valueOf(imageMain[position])); // 0 in LogCat

    mCurrentPosition = position;
}

Answer 3

可能在资源中定义可绘制的ID，因为数组是您的要求。但为什么要努力保存资源中的id数组并使用Resources和TypedArray并以编程方式设置？

您可以通过编程方式定义可绘制的id数组并使用它。

public class ShowElements extends Fragment { 
     .......
     private static final int[] imageMain = new int[]{R.drawable.one,R.drawble.two};
     ......
     public View onCreateView(......) {
             ........
     }
}

Answer 4

使用
。getResources（）getDrawable（R.id.myImage）;

如何使用片段将图片从@drawable加载到ImageView？

4 个答案: