在 Android 7+ 中通过 Glide 按照 URL 在片段的 ImageView 中显示 GIF 图像。

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英文:

Show GIF image in fragment ImageView by URL using Glide on Android 7+

问题

以下是您提供的代码的翻译部分：

  1. public class FragmentHandler extends Fragment implements View.OnClickListener {	
  2.     private void showJsonContent(JSONObject jsonObject) throws JSONException {
  3.         if (jsonObject == null) return;
  4.         String gifLink = jsonObject.getString("gifURL");
  5.         String desc = jsonObject.getString("description");
  6.         captionTextView.setText(desc);
  7.         Glide.with(Objects.requireNonNull(getActivity())
  8.                 .getApplicationContext())
  9.                 .asGif()
  10.                 .load(gifLink)
  11.                 .listener(new RequestListener<GifDrawable>() {
  13.                     @Override
  14.                     public boolean onLoadFailed(GlideException e, Object model, Target<GifDrawable> target, boolean isFirstResource) {
  15.                         progressBar.setVisibility(View.GONE);
  16.                         return false;
  17.                     }
  19.                     @Override
  20.                     public boolean onResourceReady(GifDrawable resource, Object model, Target<GifDrawable> target, DataSource dataSource, boolean isFirstResource) {
  21.                         progressBar.setVisibility(View.GONE);
  22.                         return false;
  23.                     }
  25.                 }).into(new ImageViewTarget<GifDrawable>(imageView) {
  26.                     @Override
  27.                     protected void setResource(GifDrawable resource) {
  28.                         imageView.setImageDrawable(resource);
  29.                     }
  30.                 });
  31.     }
  32. }
  1. <ProgressBar
  2.     android:id="@+id/progress"
  3.     android:layout_width="150dp"
  4.     android:layout_height="150dp"
  5.     android:layout_centerVertical="true"
  6.     android:layout_centerHorizontal="true"
  7.     android:visibility="visible" />
  9. <ImageView
  10.     android:id="@+id/imageView"
  11.     android:layout_width="240dp"
  12.     android:layout_height="240dp"
  13.     android:layout_centerVertical="true"
  14.     android:layout_centerHorizontal="true"
  15.     android:contentDescription="@string/gif_image" />

更新：
以下是GIF图像的示例URL：

  1. http://static.devli.ru/public/images/gifs/201402/90400af2-91c1-4f31-bf5e-b2561b598d7c.gif

以及我的AndroidManifest：

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <manifest xmlns:android="http://schemas.android.com/apk/res/android"
  3.     package="com.example.gifapp">
  5.     <uses-feature android:name="android.hardware.wifi" android:required="true" />
  7.     <uses-permission android:name="android.permission.INTERNET"/>
  8.     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
  10.     <application
  11.         android:allowBackup="true"
  12.         android:fullBackupContent="@xml/my_backup_rules"
  13.         android:icon="@mipmap/ic_launcher"
  14.         android:label="@string/app_name"
  15.         android:roundIcon="@mipmap/ic_launcher_round"
  16.         android:supportsRtl="true"
  17.         android:theme="@style/AppTheme">
  18.         <activity android:name=".MainActivity">
  19.             <intent-filter>
  20.                 <action android:name="android.intent.action.MAIN" />
  21.                 <category android:name="android.intent.category.LAUNCHER" />
  22.             </intent-filter>
  23.         </activity>
  24.     </application>
  26. </manifest>

请注意，这只是您提供的代码的翻译部分，其中涉及的变量名和函数名可能需要根据上下文进行调整。

英文:

I'm trying to show GIF image by URL from JSON file. For that, I have function, which takes JSONObject and show image by Glide.

  1. public class FragmentHandler extends Fragment implements View.OnClickListener {	
  2. 	private void showJsonContent(JSONObject jsonObject) throws JSONException {
  3. 			if (jsonObject == null) return;
  4. 			String gifLink = jsonObject.getString(&quot;gifURL&quot;);
  5. 			String desc = jsonObject.getString(&quot;description&quot;);
  6. 			captionTextView.setText(desc);
  7. 			Glide.with(Objects.requireNonNull(getActivity())
  8. 					.getApplicationContext())
  9. 					.asGif()
  10. 					.load(gifLink)
  11. 					.listener(new RequestListener&lt;GifDrawable&gt;() {
  13. 						@Override
  14. 						public boolean onLoadFailed(GlideException e, Object model, Target&lt;GifDrawable&gt; target, boolean isFirstResource) {
  15. 							progressBar.setVisibility(View.GONE);
  16. 							return false;
  17. 						}
  19. 						@Override
  20. 						public boolean onResourceReady(GifDrawable resource, Object model, Target&lt;GifDrawable&gt; target, DataSource dataSource, boolean isFirstResource) {
  21. 							progressBar.setVisibility(View.GONE);
  22. 							return false;
  23. 						}
  25. 					}).into(new ImageViewTarget&lt;GifDrawable&gt;(imageView) {
  26. 						@Override
  27. 						protected void setResource(GifDrawable resource) {
  28. 							imageView.setImageDrawable(resource);
  29. 						}
  30. 					});
  31.     }
  32. }

Progress Bar and ImageView in XML looks like that:

  1. &lt;ProgressBar
  2.     android:id=&quot;@+id/progress&quot;
  3.     android:layout_width=&quot;150dp&quot;
  4.     android:layout_height=&quot;150dp&quot;
  5.     android:layout_centerVertical=&quot;true&quot;
  6.     android:layout_centerHorizontal=&quot;true&quot;
  7.     android:visibility=&quot;visible&quot; /&gt;
  9. &lt;ImageView
  10.     android:id=&quot;@+id/imageView&quot;
  11.     android:layout_width=&quot;240dp&quot;
  12.     android:layout_height=&quot;240dp&quot;
  13.     android:layout_centerVertical=&quot;true&quot;
  14.     android:layout_centerHorizontal=&quot;true&quot;
  15.     android:contentDescription=&quot;@string/gif_image&quot; /&gt;

It works absolutely correct on Android 6 Pixel emulator (API 26), but with devices (physical and emulator) with a higher version, it doesn't show image. URL and JSON correct, because program prints message from another JSON field and I tried to debug it for the check.

I read really a lot of posts with a similar problem at StackOverflow and tried all suggestions, mostly concerning using asGif(). But it doesn't help. Are there any ways to solve this problem?

UPDATE:

Here is example of URL to the GIF image:

  1. http://static.devli.ru/public/images/gifs/201402/90400af2-91c1-4f31-bf5e-b2561b598d7c.gif

And my AndroidManifest:

  1. &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
  2. &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
  3.     package=&quot;com.example.gifapp&quot;&gt;
  5.     &lt;uses-feature android:name=&quot;android.hardware.wifi&quot; android:required=&quot;true&quot; /&gt;
  7.     &lt;uses-permission android:name=&quot;android.permission.INTERNET&quot;/&gt;
  8.     &lt;uses-permission android:name=&quot;android.permission.ACCESS_NETWORK_STATE&quot;/&gt;
  10.     &lt;application
  11.         android:allowBackup=&quot;true&quot;
  12.         android:fullBackupContent=&quot;@xml/my_backup_rules&quot;
  13.         android:icon=&quot;@mipmap/ic_launcher&quot;
  14.         android:label=&quot;@string/app_name&quot;
  15.         android:roundIcon=&quot;@mipmap/ic_launcher_round&quot;
  16.         android:supportsRtl=&quot;true&quot;
  17.         android:theme=&quot;@style/AppTheme&quot;&gt;
  18.         &lt;activity android:name=&quot;.MainActivity&quot;&gt;
  19.             &lt;intent-filter&gt;
  20.                 &lt;action android:name=&quot;android.intent.action.MAIN&quot; /&gt;
  21.                 &lt;category android:name=&quot;android.intent.category.LAUNCHER&quot; /&gt;
  22.             &lt;/intent-filter&gt;
  23.         &lt;/activity&gt;
  24.     &lt;/application&gt;
  26. &lt;/manifest&gt;

答案1

得分: 0

在调试过程中，我发现.listener调用了onLoadFailed(...)方法。因此，在那之后，我遇到了一个适当的问题。在Android 7+上，这是由于新的安全配置引起的。

英文:

During debugging I've discovered, that .listener calls onLoadFailed(...) method. So, after that, I stumbled to a suitable problem. On Android 7+ it caused because of new security configuration.

huangapple
  • 本文由 发表于 2020年8月30日 03:19:56
  • 转载请务必保留本文链接：https://go.coder-hub.com/63650896.html
  • android
  • android-glide
  • gif
  • java
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