android-contentprovider

问题 I am trying to design an Alarm app where Audio is played when the device is shaken. I am selecting the Audio from file system using "ACTION_GET_CONTENT" in Intent with ActivityForResult . I am able to fetch the content uri , saving it in SharedPreference and playing it with MediaPlayer on a different Activity passing the URI in Intent . But, once I close my app and reopen it and try to play the Audio from the URI in SharedPrederence , the Audio is not played. What can be done so that I can

问题 I'm using Android Commander to view the files on my Android phone. Furthermore I want to view and change "java.security" file in which security providers can be statically registered. On Linux PCs, this file is located in the directory $JAVA_HOME/lib/security but I couldn't find it on my Android device. Where's it? 回答1: Mabe just not possible yet - see http://code.google.com/p/android/issues/detail?id=21417 来源： https://stackoverflow.com/questions/10462035/where-is-the-java-security-file-on

问题 I'm having trouble with matching URIs in my ContentProvider . It will match paths with one or two "tags" (not sure what the correct term is), for example it can recognize box/# . But as soon as I add a second tag, for example box/#/item , I throw an InvalidArgumentException and my app crashes. I've read in several threads on here that this issue can sometimes be solved by changing the order of the URIs added to the UriMatcher ; I tried this, but to no avail. Anyone know what the problem is? I

问题 i want to share images inside an assets folder using intent to the following applications hangout whatsapp line chat viber tango wechat i have try this code for whatsapp but it given me file not supported public void share (){ String file = "file:///android_asset/food/apple.png"; Uri filePath = Uri.fromFile(new File("content://com.example.zainabishaqmusa.postemoji/assets/gestures/aok.png")); final ComponentName name = new ComponentName("com.whatsapp", "com.whatsapp.ContactPicker"); Intent

问题 In my app, I have a SyncAdapter which uses a ContentProvider to put data into the SQLiteDatabase. Everything was working perfectly for months. After I have added a second way to update the ContentProvider from GCM push notifications, I start getting crash reports from some users like android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 3850) OR android.database.sqlite.SQLiteDiskIOException: disk I/O error (code 778) and several other exceptions related to sqlite. Although I've

问题 Hi I am developing android SMS app where I am trying to retrieve messages from built in messaging app and display it on a listview . I am using the below code for retrieving conversations. Uri uriSMSURI = Uri.parse("content://mms-sms/conversations/"); This is working fine on all phones except Samsung Grand. I am getting exception as 08-23 11:29:53.778: E/AndroidRuntime(22826): FATAL EXCEPTION: main 08-23 11:29:53.778: E/AndroidRuntime(22826): java.lang.RuntimeException: Unable to start

问题 First up: I have sifted through many of the questions on the topic on SO and have still failed to come up with a correct answer. Here is a, (way simplified), version of my code: private static UriMatcher uriMatcher = new UriMatcher(UriMatcher.NO_MATCH); private static final int HOMEWORK_TABLE_REQUEST = 1, CLASS_TABLE_REQUEST = 2, SETTINGS_TABLE_REQUEST = 3, HOMEWORK_ITEM_REQUEST = 4, CLASS_ITEM_REQUEST = 5, SETTINGS_ITEM_REQUEST = 6; static { uriMatcher.addURI("org.dvc.homeworkReminder

问题 Following this tutorial to read image from assets folder.Here is the link Link to read image from Assets folder Contentclass extends from ContentProvider but i am getting error on first Line.This error is on very first line Contentclass1 Line.Please let me know that what things i need to implement in Contentclass1.java Multiple markers at this line - The type Contentclass1 must implement the inherited abstract method ContentProvider.onCreate() - The type Contentclass1 must implement the

问题 Picture, if you will: Applications A, B, C and D. All need to share some small amount of data between them but there is no guarantee that any of them will be installed. That is, you may have B and D only. Or A and C only, etc. Can SharedPreferences be used in this case? I understand that I can use createPackageContext to have A-D all use the package space of A, if A is like a master-app that is always installed, but what if I don't know which of these will be installed? createPackageContext

问题 I want to create a database for my android application. I have written the code for a database in my project; whenever I run it shows "force close" on the emulator. I have tried different ways ,but nothing works. Where did I go wrong? // EventContentProvider.java package com.event.test; import android.content.ContentProvider; import android.content.ContentUris; import android.content.ContentValues; import android.content.Context; import android.content.UriMatcher; import android.database