exposed beyond app through Intent.getData() 下载APK后安装APK

 

 

//判断是否是AndroidN以及更高的版本
        Intent intent = new Intent(Intent.ACTION_VIEW);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            Uri contentUri = FileProvider.getUriForFile(mContext, "com.example.administrator.myapplication.fileprovider", file);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            intent.setDataAndType(contentUri, "application/vnd.android.package-archive");
        } else {
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive");
        }
        mContext.startActivity(intent);
    }