优化下载路径

plugin_version/src/main/java/com/rv/version/util/DownloadAppUtils.java

@@ -24,7 +24,7 @@ public class DownloadAppUtils {
 
         String packageName = context.getPackageName();
         String rootPath = null;
-        rootPath = context.getExternalCacheDir().getPath() + File.separator + Environment.DIRECTORY_DOWNLOADS + File.separator ;
+        rootPath = getCachePath(context) + File.separator + Environment.DIRECTORY_DOWNLOADS + File.separator;
         send(context, -1, serverVersionName);
         File file = new File(rootPath);
         if (!file.exists()) {
@@ -75,4 +75,15 @@ public class DownloadAppUtils {
         intent.putExtra("title", serverVersionName);
         context.sendBroadcast(intent);
     }
+
+    private static String getCachePath(Context context) {
+        String cachePath = null;
+        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())
+                || !Environment.isExternalStorageRemovable()) {
+            cachePath = context.getExternalCacheDir().getPath();
+        } else {
+            cachePath = context.getCacheDir().getPath();
+        }
+        return cachePath;
+    }
 }