现场调试改动100

app/src/main/AndroidManifest.xml

@@ -107,6 +107,17 @@
             android:exported="false"
             android:windowSoftInputMode="adjustPan|stateHidden" /> <!-- Mqtt Service -->
         <service android:name="org.eclipse.paho.android.service.MqttService" />
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.fileprovider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/fileproviderpath">
+            </meta-data>
+        </provider>
+
     </application>
 
 </manifest>

app/src/main/java/com/example/bpa/helper/UpdateManager.java

@@ -95,7 +95,7 @@ public class UpdateManager {
                     break;
                 //下载完成，进行安装
                 case DOWN_OVER:
-                    theClass.installApk();
+                    theClass.installApkNew();
             }
         }
     }
@@ -301,14 +301,42 @@ public class UpdateManager {
      * @param url
      */
     private void installApk(){
-        File apkfile = new File(savePath+saveFileName);
-        if (!apkfile.exists()) {
-            return;
+        try {
+            File apkfile = new File(savePath + saveFileName);
+            if (!apkfile.exists()) {
+                return;
+            }
+            Intent i = new Intent(Intent.ACTION_VIEW);
+            i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            //com.example.silentinstallation.fileprovider
+            Uri uri = Uri.parse("file://" + apkfile.toString());
+            i.setDataAndType(uri, "application/vnd.android.package-archive");
+            mContext.startActivity(i);
+        } catch(Exception e){
+            T.show(mContext,"错误信息,正在安装..."+e.getMessage());
+        }
+    }
+
+    private void installApkNew(){
+        try {
+
+            File apkfile = new File(savePath + saveFileName);
+            Intent intent = new Intent();
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            intent.setAction(Intent.ACTION_VIEW);
+            Uri uri = null;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                //fileprovider为上述manifest中provider所配置相同
+                uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileprovider", apkfile);
+                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+                intent.addFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
+            } else {
+                uri = Uri.fromFile(apkfile);
+            }
+            intent.setDataAndType(uri, "application/vnd.android.package-archive");
+            mContext.startActivity(intent);
+        } catch(Exception e){
+            T.show(mContext,"错误信息,正在安装..."+e.getMessage());
         }
-        Intent i = new Intent(Intent.ACTION_VIEW);
-        i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        Uri uri = Uri.parse("file://" + apkfile.toString());
-        i.setDataAndType(uri, "application/vnd.android.package-archive");
-        mContext.startActivity(i);
     }
 }

app/src/main/res/xml/fileproviderpath.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--因为要安装的apk是存储在sd卡的，这里的映射就相当于:
+     content:虚拟路径 映射到了-> Environment.getExternalStorageDirectory()
+    -->
+    <external-path
+        name="external_path"
+        path="." />
+</paths>