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POApp crashes when starting service in onClick method
 

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  1. POApp crashes when starting service in onClick method
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    <p>I am a newbie to android and I got a weird problem...</p> <p>I am trying to modify the WifiDirectDemo provided by Google, more specifically, the demo offers us the freedom to choose a image I want to transfer but I just want it to transfer a specific image. The original code is as follows:</p> <pre><code>public class DeviceDetailFragment extends Fragment implements ConnectionInfoListener { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { mContentView = inflater.inflate(R.layout.device_detail, null); mContentView.findViewById(R.id.btn_start_client).setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { // Allow user to pick an image from Gallery or other // registered apps Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); startActivityForResult(intent, CHOOSE_FILE_RESULT_CODE); } }); return mContentView; } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { // User has picked an image. Transfer it to group owner i.e peer using // FileTransferService. Uri uri = data.getData(); TextView statusText = (TextView) mContentView.findViewById(R.id.status_text); statusText.setText("Sending: " + uri); Log.d(WiFiDirectActivity.TAG, "Intent----------- " + uri); Intent serviceIntent = new Intent(getActivity(), FileTransferService.class); serviceIntent.setAction(FileTransferService.ACTION_SEND_FILE); serviceIntent.putExtra(FileTransferService.EXTRAS_FILE_PATH, uri.toString()); serviceIntent.putExtra(FileTransferService.EXTRAS_GROUP_OWNER_ADDRESS, info.groupOwnerAddress.getHostAddress()); serviceIntent.putExtra(FileTransferService.EXTRAS_GROUP_OWNER_PORT, 8988); getActivity().startService(serviceIntent); } </code></pre> <p>And it works totally fine. But after I move the code from onActivityResult method into onClick method, I got some errors in the runtime. Here is my code.</p> <pre><code>@Override public void onClick(View v) { // Allow user to pick an image from Gallery or other // registered apps String uristring = "content://com.android.providers.media.documents/document/image%3A25"; Intent serviceIntent = new Intent(getActivity(), FileTransferService.class); serviceIntent.setAction(FileTransferService.ACTION_SEND_FILE); serviceIntent.putExtra(FileTransferService.EXTRAS_FILE_PATH, uristring); serviceIntent.putExtra(FileTransferService.EXTRAS_GROUP_OWNER_ADDRESS, info.groupOwnerAddress.getHostAddress()); serviceIntent.putExtra(FileTransferService.EXTRAS_GROUP_OWNER_PORT, 8988); getActivity().startService(serviceIntent); } </code></pre> <p>And the error code is as follows:</p> <pre><code>11-15 00:11:16.397: W/dalvikvm(18595): threadid=11: thread exiting with uncaught exception (group=0x41553b90) 11-15 00:11:16.397: E/AndroidRuntime(18595): FATAL EXCEPTION: IntentService[FileTransferService] 11-15 00:11:16.397: E/AndroidRuntime(18595): Process: com.example.android.wifidirect, PID: 18595 11-15 00:11:16.397: E/AndroidRuntime(18595): java.lang.SecurityException: Permission Denial: opening provider com.android.providers.media.MediaDocumentsProvider from ProcessRecord{42a042a8 18595:com.example.android.wifidirect/u0a77} (pid=18595, uid=10077) requires android.permission.MANAGE_DOCUMENTS or android.permission.MANAGE_DOCUMENTS 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.os.Parcel.readException(Parcel.java:1461) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.os.Parcel.readException(Parcel.java:1415) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.app.ActivityManagerProxy.getContentProvider(ActivityManagerNative.java:2848) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.app.ActivityThread.acquireProvider(ActivityThread.java:4396) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.app.ContextImpl$ApplicationContentResolver.acquireUnstableProvider(ContextImpl.java:2207) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.content.ContentResolver.acquireUnstableProvider(ContentResolver.java:1425) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1047) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.content.ContentResolver.openAssetFileDescriptor(ContentResolver.java:904) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.content.ContentResolver.openInputStream(ContentResolver.java:629) 11-15 00:11:16.397: E/AndroidRuntime(18595): at com.example.android.wifidirect.FileTransferService.onHandleIntent(FileTransferService.java:63) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.os.Handler.dispatchMessage(Handler.java:102) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.os.Looper.loop(Looper.java:137) 11-15 00:11:16.397: E/AndroidRuntime(18595): at android.os.HandlerThread.run(HandlerThread.java:61) </code></pre> <p>Is there anyone can help?</p> <p>Update:</p> <p>I added the permission to the manifest, here is how the manifest looks like:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.android.wifidirect" android:versionCode="1" android:versionName="1.0"&gt; &lt;uses-sdk android:minSdkVersion="14" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /&gt; &lt;uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /&gt; &lt;uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /&gt; &lt;uses-permission android:name="android.permission.READ_PHONE_STATE" /&gt; &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt; &lt;uses-permission android:name="android.permission.MANAGE_DOCUMENTS"/&gt; &lt;!-- Google Play filtering --&gt; &lt;uses-feature android:name="android.hardware.wifi.direct" android:required="true"/&gt; &lt;application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@android:style/Theme.Holo"&gt; &lt;activity android:name=".WiFiDirectActivity" android:label="@string/app_name" android:launchMode="singleTask"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;!-- Used for transferring files after a successful connection --&gt; &lt;service android:enabled="true" android:name=".FileTransferService" /&gt; &lt;/application&gt; </code></pre> <p></p> <p>And the app still crashes with the same error information.</p> <p>But when I run the following code, no error occurs.</p> <pre><code>@Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { mContentView = inflater.inflate(R.layout.device_detail, null); mContentView.findViewById(R.id.btn_start_client).setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { // Allow user to pick an image from Gallery or other // registered apps Intent intent = new Intent(Intent.ACTION_GET_CONTENT); intent.setType("image/*"); startActivityForResult(intent, CHOOSE_FILE_RESULT_CODE); } }); return mContentView; } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { // User has picked an image. Transfer it to group owner i.e peer using String uristring = "content://com.android.providers.media.documents/document/image%3A25"; Intent serviceIntent = new Intent(getActivity(), FileTransferService.class); serviceIntent.setAction(FileTransferService.ACTION_SEND_FILE); serviceIntent.putExtra(FileTransferService.EXTRAS_FILE_PATH, uristring); serviceIntent.putExtra(FileTransferService.EXTRAS_GROUP_OWNER_ADDRESS, info.groupOwnerAddress.getHostAddress()); serviceIntent.putExtra(FileTransferService.EXTRAS_GROUP_OWNER_PORT, 8988); getActivity().startService(serviceIntent); } </code></pre> <p>So errors occur when I move the sequence of lines from onActivityResult to onClick. I just don't know what the situation is because actually I already added the MANAGE_DOCUMENT permission to the manifest and it keeps asking for permission. And without the permission in manifest, I can still access the image file if I put the code back to onActivityResult. Does anyone know why? Thank you so much!</p>
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    1. USDavid Shi
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    1. COi think you are missing some permission in manifest file
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    2. COThanks for your reply! I am confused about this, if I put the String uristring = "content://com.android.providers.media.documents/document/image%3A25"; line in onActivityResult method, it works fine. No error about permission denial. And I also added the permission line you provided and that didn't change the situation. Exactly the same error information. Any idea about that?
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      1. USDavid Shi
    3. COFinally I bypass this problem by store and pick up images in "Environment.getExternalStoragePublicDirectory( Environment.DIRECTORY_PICTURES)" And it works. As I stated in the update, the origin problem is unsolved and I don't think it is because of the undeclared permission. Maybe it is because I am using Kitkat. [There](http://stackoverflow.com/questions/19837358/android-kitkat-securityexception-when-trying-to-read-from-mediastore) is another post that seems to be related to my problem .
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