早安所有!!!!
我正在尝试在Imageview中显示图像。但我的要求是，我需要以Drawable整数格式显示图像。我从服务器获取数据并以url格式获取图像..
For ex :http://www.mymartmycart.com/images/detailed/3/4G_CONNECT_M1.jpeg
我想以Drawable格式转换此图片。
这是我的代码
这是我的界面
public interface ECCardData<T> {
@DrawableRes
Integer getMainBackgroundResource();
@DrawableRes
Integer getHeadBackgroundResource();
List<T> getListItems();
}
我的Getter和Setter
private Integer headBackgroundResource;
public Integer getHeadBackgroundResource() {
return headBackgroundResource;
}
public void setHeadBackgroundResource(Integer headBackgroundResource) {
this.headBackgroundResource = headBackgroundResource;
}
我设置图片的代码
Integer drawableRes = dataset.get(position).getHeadBackgroundResource();
if (drawableRes != null) {
headView.setHeadImageBitmap(BitmapFactory.decodeResource(pagerContainer.getResources(), drawableRes, new BitmapFactoryOptions()));
}
这是我的解析
public static ArrayList<CardData> ParseCraft(String response) throws JSONException {
ArrayList<CardData> alUser = new ArrayList<>();
JSONObject jsonRoot = new JSONObject(response);
JSONArray parentArray = jsonRoot.getJSONArray("products");
for (int j = 0; j < parentArray.length(); j++) {
JSONObject finalObject = parentArray.getJSONObject(j);
CardData user = new CardData();
user.setHeadTitle(finalObject.getString("product"));
user.setPersonName(finalObject.getString("product_code"));
JSONObject productJsonObject = finalObject.getJSONObject("main_pair");
JSONObject productJsonObject1 = productJsonObject.getJSONObject("detailed");
user.setHeadBackgroundResource(productJsonObject1.getString("image_path"));
alUser.add(user);
}
return alUser;
}
我的json回复
{
"products": [
{
"product_id": "863",
"product": "LAVA 4G CONNECT M1",
"company_name": "SAPTHAGIRI MOBILES",
"age_verification": "N",
"age_limit": "0",
"product_code": "SGMM00044",
"product_type": "P",
"status": "A",
"company_id": "34",
"approved": "Y",
"list_price": "0.00",
"amount": "2",
"weight": "0.000",
"length": "0",
"width": "0",
"height": "0",
"shipping_freight": "0.00",
"low_avail_limit": "0",
"timestamp": "1492758588",
"updated_timestamp": "1500273558",
"usergroup_ids": "0",
"is_edp": "N",
"edp_shipping": "N",
"unlimited_download": "N",
"tracking": "B",
"free_shipping": "N",
"zero_price_action": "R",
"is_pbp": "N",
"is_op": "N",
"is_oper": "N",
"is_returnable": "Y",
"return_period": "10",
"avail_since": "0",
"out_of_stock_actions": "N",
"localization": "",
"min_qty": "0",
"max_qty": "0",
"qty_step": "0",
"list_qty_count": "0",
"tax_ids": "",
"options_type": "P",
"exceptions_type": "F",
"details_layout": "default",
"shipping_params": "a:5:{s:16:\"min_items_in_box\";i:0;s:16:\"max_items_in_box\";i:0;s:10:\"box_length\";i:0;s:9:\"box_width\";i:0;s:10:\"box_height\";i:0;}",
"facebook_obj_type": "activity",
"buy_now_url": "",
"cod": "N",
"price": "3094.000000",
"category_ids": [
295
],
"position": "0",
"seo_name": "lava-4g-connect-m1",
"seo_path": "166/234/295",
"average_rating": null,
"discussion_type": "D",
"discussion_thread_id": "619",
"main_category": 295,
"main_pair": {
"pair_id": "2577",
"image_id": "0",
"detailed_id": "3266",
"position": "0",
"detailed": {
"object_id": "863",
"object_type": "product",
"image_path": "http://www.mymartmycart.com/images/detailed/3/4G_CONNECT_M1.jpeg",
"alt": "",
"image_x": "635",
"image_y": "476",
"http_image_path": "http://www.mymartmycart.com/images/detailed/3/4G_CONNECT_M1.jpeg",
"https_image_path": "https://www.mymartmycart.com/images/detailed/3/4G_CONNECT_M1.jpeg",
"absolute_path": "/home/mymartmycart/public_html/images/detailed/3/4G_CONNECT_M1.jpeg",
"relative_path": "detailed/3/4G_CONNECT_M1.jpeg"
}
},
"base_price": "3094.000000",
"selected_options": [],
"has_options": false,
"product_options": [],
"discounts": {
"A": 0,
"P": 0
},
"product_features": [],
"qty_content": []
}
答案 0 :(得分：3)
您可以使用协程在后台进行此工作：
private fun loadImageFromWebUrl(url: String?) {
lifecycleScope.launch(Dispatchers.IO) {
val image = try {
val iStream = java.net.URL(url).content as InputStream
Drawable.createFromStream(iStream, "src name")
} catch (e: Exception) {
null
}
image?.let {
withContext(Dispatchers.Main){
imageView.setImageDrawable = image
}
}
}
}
答案 1 :(得分：2)
此代码可用于将服务器图像网址转换为位图
String drawableRes="http://kartpay.biz/api/v1/file/banner/IHMOcSHU7yoTVOkwYi1bOOz8shrXXrJhayCPFO17.jpeg"
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
try {
URL url = new URL(drawableRes);
headView.setHeadImageBitmap(BitmapFactory.decodeStream((InputStream)url.getContent()));
} catch (IOException e) {
//Log.e(TAG, e.getMessage());
}
答案 2 :(得分：0)
我认为无法将图片网址转换为drawable int
您可以使用lib来显示来自网址的图片尝试
<强> 1。滑行
您可以使用Glide library从网址加载图片，查看下面的代码，它可以帮助您以简单的方式
编译这个库
compile 'com.github.bumptech.glide:glide:4.0.0'
加载像这样的图像
RequestOptions requestOptions = new RequestOptions();
requestOptions.placeholder(R.drawable.ic_placeholder);
requestOptions.error(R.drawable.ic_error);
Glide.with(context)
.setDefaultRequestOptions(requestOptions)
.load(mainMenuDataModelArrayList.get(position)
.getIMG()).into(holder.imageView);
<强> 2。 use picasso
编译这个库
compile 'com.squareup.picasso:picasso:2.5.2'
加载像这样的图像
Picasso.
with(context).
load(url).
into(imageview);
或尝试此
new DownloadImage(imamgeview).execute(url);
创建异步任务
public class DownloadImage extends AsyncTask<String, Void, Bitmap> {
ImageView bmImage;
public DownloadImage(ImageView bmImage) {
this.bmImage = (ImageView ) bmImage;
}
protected Bitmap doInBackground(String... urls) {
String urldisplay = urls[0];
Bitmap mIcon11 = null;
try {
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
} catch (Exception e) {
Log.d("Error", e.getStackTrace().toString());
}
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
bmImage.setImageBitmap(result);
}
}
答案 3 :(得分：0)
可以使用Picasso库：
添加gradle：
compile 'com.squareup.picasso:picasso:2.5.2'
Picasso.with(context).load("http://www.mymartmycart.com/images/detailed/3/4G_CONNECT_M1.jpeg").into(imageView);
答案 4 :(得分：0)
您可以通过以下代码
将图片从服务器网址下载到图片视图public static Drawable LoadImageFromWebURL(String url) {
try {
InputStream iStream = (InputStream) new URL(url).getContent();
Drawable drawable = Drawable.createFromStream(ist, "src name");
return drawable;
} catch (Exception e) {
return null;
}}
您还可以使用第三方库将图像下载到直接imageView
compile 'com.squareup.picasso:picasso:2.5.2'
Picasso.with(context).load("image web url").into(imageView);
答案 5 :(得分：0)
我修改了这个库来做到这一点。 https://github.com/upendra-bajpai/expanding-collection-network/ 如果您有任何困难，可以在此处提出问题。 您可以在此处传递URL代替资源数据。