feat(openVideoPicker): add coverUri property for android

Author: 亢奋猫

README.md

@@ -350,25 +350,28 @@ options 可选配置：
 | height | number | ✅ | ✅|
 | type | string | ✅ | ✅|
 | mime | string | ✅ | ✅|
-| coverUri | string | ✅ | ❌|
+| coverUri | string | ✅ | ✅|
 | favorite | string | ✅ | ❌|
 | mediaType | string | ✅ | ❌|
 
 Android 返回结果：
 
 ```javascript
 {
-  "mime": "video/mp4",
-  "type": "video",
-  "height": 1080,
-  "width": 1920,
-  "duration": 30.22,
-  "size": 63876724,
-  "fileName": "VID_20200409_11492864.mp4",
-  "uri": "file:///storage/emulated/0/DCIM/Camera/VID_20200409_11492864.mp4"
+  mime: "video/mp4",
+  type: "video",
+  height: 1080,
+  width: 1920,
+  duration: 30.22,
+  size: 63876724,
+  fileName: "VID_20200409_11492864.mp4",
+  uri: "file:///storage/emulated/0/DCIM/Camera/VID_20200409_11492864.mp4",
+  coverUri: "file:///storage/emulated/0/Android/data/package_id/cache/thumb-c3c99b6a.jpg"
 }
 ```
 
+注：uri 包含协议 "file://"
+
 ### 删除缓存
 ```javascript
 SYImagePicker.deleteCache();

android/src/main/java/com/syanpicker/GlideEngine.java

@@ -1,4 +1,4 @@
-package com.luck.pictureselector;
+package com.syanpicker;
 
 import android.content.Context;
 import android.graphics.Bitmap;

android/src/main/java/com/syanpicker/RNSyanImagePickerModule.java

@@ -2,9 +2,11 @@
 package com.syanpicker;
 
 import android.app.Activity;
-import android.content.Context;
 import android.content.Intent;
+import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.media.MediaMetadataRetriever;
+import android.os.Build;
 import android.text.TextUtils;
 import android.util.Base64;
 
@@ -30,11 +32,13 @@
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.UUID;
 
 public class RNSyanImagePickerModule extends ReactContextBaseJavaModule {
 
@@ -330,6 +334,7 @@ private void onGetVideoResult(Intent data) {
             selectList = mVideoSelectList;
         }
         WritableArray videoList = new WritableNativeArray();
+
         for (LocalMedia media : mVideoSelectList) {
             if (TextUtils.isEmpty(media.getPath())) {
                 continue;
@@ -338,11 +343,11 @@ private void onGetVideoResult(Intent data) {
             DecimalFormat df = new DecimalFormat("#.00");
             WritableMap videoMap = new WritableNativeMap();
 
-            // File Path https://stackoverflow.com/questions/3401579/get-filename-and-path-from-uri-from-mediastore
-            Context ctx = this.reactContext.getApplicationContext();
-            String filePath = Utils.getPathFromURI(ctx, media.getPath());
+            Boolean isAndroidQ = Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q;
+            String filePath = isAndroidQ ? media.getAndroidQToPath() : media.getPath();
 
-            videoMap.putString("uri", filePath);
+            videoMap.putString("uri", "file://" + filePath);
+            videoMap.putString("coverUri", "file://" + this.getVideoCover(filePath));
             videoMap.putString("fileName", new File(media.getPath()).getName());
             videoMap.putDouble("size", new File(media.getPath()).length());
             videoMap.putDouble("duration", media.getDuration() / 1000.00);
@@ -432,6 +437,36 @@ private String getBase64StringFromFile(String absoluteFilePath) {
         return "data:image/jpeg;base64," + Base64.encodeToString(bytes, Base64.NO_WRAP);
     }
 
+
+    /**
+     * 获取视频封面图片
+     * @param videoPath 视频地址
+     */
+    private String getVideoCover(String videoPath) {
+        try {
+            MediaMetadataRetriever retriever = new MediaMetadataRetriever();
+            retriever.setDataSource(videoPath);
+            Bitmap bitmap = retriever.getFrameAtTime();
+            FileOutputStream outStream = null;
+            final String uuid = "thumb-" + UUID.randomUUID().toString();
+            final String localThumb = reactContext.getExternalCacheDir().getAbsolutePath() + "/" + uuid + ".jpg";
+            outStream = new FileOutputStream(new File(localThumb));
+            bitmap.compress(Bitmap.CompressFormat.JPEG, 30, outStream);
+            outStream.close();
+            retriever.release();
+
+            return localThumb;
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } catch (Exception err) {
+            err.printStackTrace();
+        }
+
+        return null;
+    }
+
     /**
      * 选择照片成功时触发
      *
@@ -461,5 +496,4 @@ private void invokeError(int resultCode) {
             this.mPickerPromise.reject(SY_SELECT_IMAGE_FAILED_CODE, message);
         }
     }
-
 }