android - 原因:在 android 中使用内容解析器时出现 java.lang.SecurityException
问题描述
我正在使用内容解析器阅读 android 消息、日历数据等。我在清单文件中添加了权限。并且还实现了读/写短信和日历的运行时权限。在某些运行 android 7.0 或更高版本的设备上,我仍然遇到以下问题。
Caused by: java.lang.SecurityException:
at android.os.Parcel.readException (Parcel.java:1693)
at android.os.Parcel.readException (Parcel.java:1646)
at android.app.ActivityManagerProxy.getContentProvider (ActivityManagerNative.java:4912)
at android.app.ActivityThread.acquireProvider (ActivityThread.java:6043)
at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider (ContextImpl.java:2474)
at android.content.ContentResolver.acquireUnstableProvider (ContentResolver.java:1521)
at android.content.ContentResolver.query (ContentResolver.java:520)
at android.content.ContentResolver.query (ContentResolver.java:478)
at com.allbackup.ui.activity.MsgsActivity.c (MsgsActivity.java:301)
at com.allbackup.ui.activity.MsgsActivity$c.a (MsgsActivity.java:201)
at com.allbackup.ui.activity.MsgsActivity$c.doInBackground (MsgsActivity.java:186)
以上是读取短信时的错误堆栈跟踪。下面是代码:
Uri message = Uri.parse("content://sms/");
ContentResolver cr = getContentResolver();
Cursor c = cr.query(message, null, null, null, null);
//startManagingCursor(c);
int totalSMS = c.getCount();
if (c.moveToFirst()) {
if(c.getString(c.getColumnIndex("address")) != null){
add = c.getString(c.getColumnIndexOrThrow("address")).replaceAll("[\\s\\-()]", "");
map.put("address", c.getString(c.getColumnIndexOrThrow("address")).replaceAll("[\\s\\-()]", ""));
}else{
map.put("address", "");
}
if(!add.isEmpty()){
Uri lookupUri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI, Uri.encode(add));
Cursor cno = getContentResolver().query(lookupUri, new String[]{ContactsContract.Data.DISPLAY_NAME_PRIMARY, ContactsContract.Data.PHOTO_THUMBNAIL_URI},null,null,null);
if(cno.getCount()>0){
try {
cno.moveToFirst();
map.put("name", cno.getString(0));
map.put("photo", cno.getString(1));
} catch (Exception e) {
// TODO: handle exception
}finally{
// cno.close();
}
}else{
map.put("name", "");
map.put("photo", "");
}
if(cno!=null)
cno.close();
}
}
我在下面的行中收到错误:
Cursor cno = getContentResolver().query(lookupUri, new String[]{ContactsContract.Data.DISPLAY_NAME_PRIMARY, ContactsContract.Data.PHOTO_THUMBNAIL_URI},null,null,null);
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.allbackup">
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="22" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.READ_CALL_LOG" />
<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CALL_LOG" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_SMS" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<application
android:name=".MyApplication"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:name=".ui.activity.SplashActivity"
android:label="@string/app_name"
android:screenOrientation="portrait"
android:theme="@style/FullScreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/provider_paths"/>
</provider>
</activity>
</application>
</manifest>
解决方案
在使用内容提供商访问内容之前,您必须始终检查权限。如果未授予,则必须在运行时请求权限,然后尝试获取消息。
if(ContextCompat.checkSelfPermission(getBaseContext(), "android.permission.READ_SMS") == PackageManager.PERMISSION_GRANTED) {
read your contacts here
}
欲了解更多信息,请参阅此网站:https ://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en
推荐阅读
- javascript - 分页在首次加载时无法使用检索到的 api
- angular - 使用具有内容投影的其他组件测试 Angular 组件
- webpack - webpack - 最大化热模块替换只会触及编辑文件的机会
- excel - 用作绘图参考时,索引函数不起作用
- google-chrome - 不支持直通,gl 在使用 chromium 驱动程序 91 运行 salenium 项目时被禁用 ..plz 帮助它
- google-apps-script - 按 ID 将指定值从 CSV 导入 Google 工作表
- wordpress - 如何在 WooCommerce 中定义基于支付网关的每个产品的自定义价格?
- jupyter-notebook - AWS Sagemaker 笔记本间歇性“无法找到凭证”
- html - 使用引导程序 4 时字体机器人不起作用
- javascript - Npm publish 给出了无效的目录