Question

我在LinearLayout中以编程方式膨胀ImageView和TextView的组合。我的线性布局在水平滚动视图下。但是当我设置layout_gravity =＆＃34; center_horizontal＆＃34;到我的线性布局的父级，线性布局内的内容走出屏幕。

看看发生了什么：

我正在使用layout_gravity来实现这个

没有layout_gravity，它就像这样

但是如果我使用layout_gravity并且HorizontalScrollView中有许多项目，那么1或2个项目不会显示。您可以查看第一个上传的图像以了解该场景。在第一张图片中，我无法向右滚动，我只能看到ImageView和TextView组合，而且还有一个这样的组合完全在屏幕外。

这里是xml结构

<HorizontalScrollView
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"

                    android:scrollbarAlwaysDrawHorizontalTrack="false"
                    android:scrollbars="none"
                    android:id="@+id/hotel_detail_services">
                    <LinearLayout
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_gravity="center_horizontal"
                        android:orientation="horizontal">
                        <LinearLayout
                            android:layout_width="wrap_content"
                            android:layout_height="wrap_content"
                            android:orientation="vertical"
                            android:id="@+id/imageViewLayout"
                            >
                        </LinearLayout>

                    </LinearLayout>
                </HorizontalScrollView>

Java操作

    @Override
    protected void onPostExecute(List<hotel_detail_model> hotel_detail_models) {
        super.onPostExecute(hotel_detail_models);
        LinearLayout layout = findViewById(R.id.imageViewLayout);
        layout.setOrientation(LinearLayout.HORIZONTAL);
        layout.setGravity(Gravity.CENTER_HORIZONTAL);


        if (hotel_detail_models.get(0).getTv()==1)
            addHotelSpeciality(layout,"TV",R.drawable.tv);
        if (hotel_detail_models.get(0).getAc()==1)
            addHotelSpeciality(layout,"AC",R.drawable.ac);
        if (hotel_detail_models.get(0).getGeyser()==1)
            addHotelSpeciality(layout,"Geyser",R.drawable.geyser);
        if (hotel_detail_models.get(0).getBus()==1)
            addHotelSpeciality(layout,"BUS",R.drawable.bus);
        if (hotel_detail_models.get(0).getCab()==1)
            addHotelSpeciality(layout,"CAB",R.drawable.cab);
        if (hotel_detail_models.get(0).getFood()==1)
            addHotelSpeciality(layout,"FOOD",R.drawable.food);
        if (hotel_detail_models.get(0).getRailway()==1)
            addHotelSpeciality(layout,"Train",R.drawable.train);
        if (hotel_detail_models.get(0).getAirport()==1)
            addHotelSpeciality(layout,"Airport",R.drawable.airport);
        if (hotel_detail_models.get(0).getMedical()==1)
            addHotelSpeciality(layout,"Medical",R.drawable.medical);
        progressDialog.dismiss();
    }
    //Add Image Dynamically
    private void addHotelSpeciality(LinearLayout layout, String image_name, int image_id) {
        LinearLayout linearLayout = new LinearLayout(hotel_details.this);
        ImageView image = new ImageView(hotel_details.this,null,R.style.dynamicImageHotel);
        TextView textView = new TextView(hotel_details.this,null,R.style.dynamicTextHotel);
        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(getResources().getDimensionPixelSize(R.dimen._25sdp),
                getResources().getDimensionPixelSize(R.dimen._25sdp));
        params.weight = 1.0f;
        params.gravity = Gravity.CENTER_HORIZONTAL;


        LinearLayout.LayoutParams params2 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
                ViewGroup.LayoutParams.WRAP_CONTENT);
        params2.weight = 1.0f;
        params2.gravity = Gravity.CENTER_HORIZONTAL;

        LinearLayout.LayoutParams params3 = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT);
        params3.weight = 1.0f;
        params2.gravity = Gravity.CENTER_HORIZONTAL;


        image.setLayoutParams(params);
        image.setScaleType(ImageView.ScaleType.FIT_CENTER);
        textView.setLayoutParams(params2);
        image.setImageDrawable( getResources().getDrawable(image_id));
        textView.setText(image_name);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            textView.setTextAppearance(R.style.dynamicTextHotel);

        }else {
            textView.setTextAppearance(hotel_details.this,R.style.dynamicTextHotel);
        }
        // Adds the view to the layout
        linearLayout.addView(image);
        linearLayout.addView(textView);
        linearLayout.setOrientation(LinearLayout.VERTICAL);
        linearLayout.setLayoutParams(params3);           linearLayout.setPadding(getResources().getDimensionPixelSize(R.dimen._15sdp),0,0,0);
        layout.addView(linearLayout);
    }

Answer 1

使用HorizontalScrollView并不是您想要实现的目标吗？ ScrollViews允许内容大于物理显示，所以当你添加足够的＆＃34; hotelSpecialities＆＃34;它离开了屏幕，你可以滚动它。如果您尝试在屏幕上显示所有内容，则不会使用HorizontalScrollView。

现在好了，我知道你想要实现的目标，将你的ScrollView放在RelativeLayout内即可。

这对我有用

<RelativeLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_height="wrap_content"
  android:layout_width="match_parent">
  <HorizontalScrollView
    android:id="@+id/hotel_detail_services"
    android:layout_centerHorizontal="true"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:scrollbarAlwaysDrawHorizontalTrack="false"
    android:scrollbars="none">
    <LinearLayout
      android:layout_height="wrap_content"
      android:layout_width="wrap_content"
      android:orientation="horizontal">
      <LinearLayout
        android:id="@+id/imageViewLayout"
        android:layout_height="wrap_content"
        android:layout_width="wrap_content"
        android:orientation="vertical">
      </LinearLayout>

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

如果您不需要LinearLayout，也可以移除imageViewLayout的父{{1}}。如果您需要帮助，请告诉我们！

查看在水平线性布局内的动态图像视图中走出屏幕

1 个答案: