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POOrder of installing the application is changing the behaviour?
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  1. POOrder of installing the application is changing the behaviour?
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    copied!<p>I have three applications: University, Student, Staff. </p> <p>University is the Main application. Student and Staff are provider application.</p> <p>University is having the permission to access the info from this provider applications.</p> <p>I installed the apk in following order <strong>student, staff and University</strong>. this is working fine</p> <p>But if i install in the order <strong>University, student and staff</strong>. </p> <p>In this case University is crashed and the error is "access permission is denied".</p> <p>Why this is happening even if we have proper permission? Why the provider installed later is not accessible by main application?</p> <pre><code> 01-29 16:49:48.257: E/AndroidRuntime(2622): Caused by: java.lang.SecurityException: Permission Denial: opening provider com.content.StudentProvider from ProcessRecord{b4849ad0 2622:com.example.University/u0a44} (pid=2622, uid=10044) requires com.content.READ or com.content.WRITE 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.os.Parcel.readException(Parcel.java:1425) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.os.Parcel.readException(Parcel.java:1379) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:2354) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.app.ActivityThread.acquireProvider(ActivityThread.java:4219) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:1703) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1099) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.content.ContentResolver.query(ContentResolver.java:354) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.content.CursorLoader.loadInBackground(CursorLoader.java:65) 01-29 16:49:48.257: E/AndroidRuntime(2622): at android.content.CursorLoader.loadInBackground(CursorLoader.java:43) </code></pre> <p>Provider - Student - Manifest</p> <pre><code> &lt;permission android:description="@string/readPermissionDescription" android:name="com.content.student.READ" android:protectionLevel="normal"&gt;&lt;/permission&gt; &lt;permission android:description="@string/writePermissionDescription" android:name="com.content.student.WRITE" android:protectionLevel="dangerous"&gt;&lt;/permission&gt; &lt;uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" &gt; &lt;provider android:name=".StudentProvider" android:authorities="com.content.student" android:readPermission="com.content.student.READ" android:writePermission="com.content.student.WRITE" &gt; &lt;/provider&gt; &lt;/application&gt; </code></pre> <p>University - Manifest</p> <pre><code> &lt;uses-permission android:name="com.content.student.READ" /&gt; &lt;uses-permission android:name="com.content.student.WRITE" /&gt; </code></pre>
 

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