android - 如何在运行时生成 ImageView

Question

我想在运行时在 ImageViews 上显示图像并从 Parse.com 获取图像。我能够显示带有我的代码中预定义的 ImageView 数组的图像。喜欢:

ImageView ad1,ad2,ad3,ad4,ad5,ad6;
private ImageView[] imgs = new ImageView[5];
ad1=(ImageView) findViewById(R.id.ad1);
    ad2=(ImageView) findViewById(R.id.ad2);
    ad3=(ImageView) findViewById(R.id.ad3);
    ad4=(ImageView) findViewById(R.id.ad4);
    ad5=(ImageView) findViewById(R.id.ad5);
    ad6=(ImageView) findViewById(R.id.ad6);
     imgs[0] = ad2; 
     imgs[1] = ad3; 
     imgs[2] = ad4; 
     imgs[3] = ad5; 
     imgs[4] = ad6;
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>("Footer");
     query.orderByDescending("updatedAt");
     query.whereEqualTo("Status", true);
        ob = query.find();
     for (ParseObject country : ob) {
         ParseFile image = (ParseFile) country.get("imageFile");
         imgl.DisplayImage(image.getUrl(), imgs[i]);
        i=i+1;
         System.out.println("the urls are"+image.getUrl());

              }
            } catch (ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

XML 布局:

 <HorizontalScrollView
 android:id="@+id/horizontalScrollView1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content" >
 <LinearLayout
 android:layout_width="wrap_content"
 android:layout_height="match_parent"
 android:orientation="horizontal" >

 <ImageView
     android:id="@+id/ad2"
     android:layout_width="90dp"
     android:layout_height="wrap_content"
     android:layout_margin="3dp"
     tools:ignore="ContentDescription" />

    <ImageView
        android:id="@+id/ad3"
        android:layout_width="90dp"
        android:layout_height="wrap_content"
        android:layout_margin="3dp"
        tools:ignore="ContentDescription" />

    <ImageView
        android:id="@+id/ad4"
        android:layout_width="90dp"
        android:layout_height="wrap_content"
        android:layout_margin="3dp"
        tools:ignore="ContentDescription" />

    <ImageView
        android:id="@+id/ad5"
        android:layout_width="90dp"
        android:layout_height="wrap_content"
        android:layout_margin="3dp"
        tools:ignore="ContentDescription" />

     <ImageView
         android:id="@+id/ad6"
         android:layout_width="90dp"
         android:layout_height="wrap_content"
         android:layout_margin="3dp"
         tools:ignore="ContentDescription" />

    </LinearLayout>
</HorizontalScrollView>
</LinearLayout>

有什么方法可以让我不必对 ImageViews 进行硬编码，它会根据 parseobjects 的数量自动生成？谢谢

Answer 1

LinearLayout container=(LinearLayout) findViewById(R.id.container);

ParseQuery<ParseObject> query = new ParseQuery<ParseObject>("Footer");
     query.orderByDescending("updatedAt");
     query.whereEqualTo("Status", true);
        ob = query.find();
     for (ParseObject country : ob) {
         ParseFile image = (ParseFile) country.get("imageFile");
         ImageView iv=new ImageView(this);
         imgl.DisplayImage(image.getUrl(), iv);
          container.addView(iv);
        i=i+1;
         System.out.println("the urls are"+image.getUrl());

              }
            } catch (ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

同时设置 LinearLayout 的 id 并删除所有其他 ImageViews:

<HorizontalScrollView
 android:id="@+id/horizontalScrollView1"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content" >
 <LinearLayout
 android:layout_width="wrap_content"
 android:layout_height="match_parent"
 android:orientation="horizontal" android:id="@+id/container">


    </LinearLayout>
</HorizontalScrollView>