我用过这段代码并且可以成功地将图像(来自我手机的图库)与文本从我的 Android 应用程序共享到 google+。
但是,当我尝试从应用程序的内容提供商发布图像时,该图像显示在我的 google+ 页面上,如下所示......
...尽管预期的图像在 google+ 应用程序预览屏幕上显示得很好。
我用来分享的代码是:
String message = "My message";
Uri localImageUri = ContentUris.withAppendedId(DbContentProvider.CONTENT_URI_PRODUCTS, mProductId;
PlusShare.Builder builder = new PlusShare.Builder(getActivity());
builder.setText(message);
builder.addStream(localImageUri);
builder.setType("image/jpeg");
Intent shareIntent = builder.getIntent();
startActivityForResult(shareIntent, RC_GOOGLE_PLUS);
...并且,就像我说的,如果localImageUri
值是我手机图库中的资源 - 而如果我设置,则会显示上面的占位符图像localImageUri
到我的应用程序自己的内容提供商的 uri。
所以我认为我的内容提供商一定存在问题,它在我的清单中定义为:
<provider
android:name=".DbContentProvider"
android:authorities="com.example.provider"
android:exported="true"
android:grantUriPermissions="true" />
那么,我的清单中甚至是我的 searchable.xml 文件中是否缺少某些内容:
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="@string/app_name"
android:hint="@string/search_hint"
android:searchSuggestAuthority="com.example.provider"
android:searchSuggestIntentAction="android.intent.action.VIEW"
android:searchSuggestIntentData="content://com.example.provider/suggest"
android:searchSuggestThreshold="3"
android:includeInGlobalSearch="true"
android:searchSettingsDescription="@string/search_settings_description"
android:queryAfterZeroResults="true"
android:voiceSearchMode="showVoiceSearchButton" >
</searchable>
如果不是,那么问题可能是什么?
Update(根据 CommonsWare 的评论)
Google+ 库确实引发了异常,因为也对_data
列(存在),Google+ API 也在寻找不存在的列 - 即,datetaken
, date_added
, date_modified
.
所以我已将这些列添加到我的数据库表中 - 将它们全部添加为text
具有最近毫秒值的列,例如'1419379390000'
(ref here)但我的 Google+ 页面上仍然显示相同的占位符图像。
所以我添加了一些日志代码query()
我的方法DbContentProvider
类以及当 google+ 进行单列查询时datetaken
,游标中返回的值确实是1419379390000。但是,返回的值是(单独的)_data
查询是null
.
我不知道为什么 google API 会查询_data
列(因为当我从数据库检索图像以便在 UI 上显示时,我不需要在代码中调用它 - 相反,我调用...
Uri localImageUri = ContentUris.withAppendedId(DbContentProvider.CONTENT_URI_PRODUCTS, mProductId);
InputStream in = cr.openInputStream(localImageUri);
Bitmap img = BitmapFactory.decodeStream(in);
imageView.setImageBitmap(img);
...但大概是我的光标中的空值_data
价值是问题。但不知道从哪里开始解决这个问题?
2014 年 12 月 30 日更新
这是 LogCat 输出。所以,当我点击 g+ 按钮时...
12-30 21:45:34.344: D/DbContentProvider(24633): getType(content://com.example.provider/products/1668)
12-30 21:45:34.534: D/DbContentProvider(24633): getType(content://com.example.provider/products/1668)
12-30 21:45:34.544: D/DbContentProvider(24633): openFile(content://com.example.provider/products/1668, r)
12-30 21:45:34.584: D/DbContentProvider(24633): openFile(content://com.example.provider/products/1668, r)
12-30 21:45:34.604: D/DbContentProvider(24633): openFile(content://com.example.provider/products/1668, r)
12-30 21:45:34.604: D/DbContentProvider(24633): openFile(content://com.example.provider/products/1668, r)
12-30 21:45:34.624: D/DbContentProvider(24633): openFile(content://com.example.provider/products/1668, r)
...这会弹出用于自定义共享消息的 g+ 屏幕(我确认,其中确实包含来自我的内容提供商的图像)。然后我单击 g+ 屏幕上的“共享”按钮,LogCat 输出为...
12-30 21:45:57.526: D/DbContentProvider(24633): openFile(content://com.example.provider/products/1668, r)
12-30 21:45:57.576: D/DbContentProvider(24633): getType(content://com.example.provider/products/1668)
12-30 21:45:57.576: D/DbContentProvider(24633): DbContentProvider - query(content://com.example.provider/products/1668)
12-30 21:45:57.576: D/DbContentProvider(24633): - projection: {"datetaken"}
12-30 21:45:57.576: D/DbContentProvider(24633): - selection: null
12-30 21:45:57.576: D/DbContentProvider(24633): - selectionArgs: null
12-30 21:45:57.576: D/DbContentProvider(24633): - sortOrder: null
12-30 21:45:57.576: D/DbContentProvider(24633): SQL (without selectionArgs): SELECT datetaken FROM products WHERE (_id = 1668) LIMIT 1
12-30 21:45:57.596: D/DbContentProvider(24633): returned value: 1419379390000
12-30 21:45:57.596: D/DbContentProvider(24633): cursor count: 1
12-30 21:46:03.642: D/DbContentProvider(24633): getType("content://com.example.provider/products/1668") - returns "vnd.android.cursor.item/vnd.example.elemental"
2015 年 1 月 23 日更新
这是我的完整清单:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example"
android:versionCode="10"
android:versionName="0.10" >
<uses-sdk
android:minSdkVersion="11"
android:targetSdkVersion="20" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
<permission
android:name="com.example.permission.C2D_MESSAGE"
android:protectionLevel="signature" />
<uses-permission android:name="com.example.permission.C2D_MESSAGE" />
<uses-permission android:name="com.android.vending.BILLING" />
<application
android:name=".MyApplication"
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<receiver
android:name=".GcmBroadcastReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<category android:name="com.example" />
</intent-filter>
</receiver>
<service android:name=".GcmIntentService" />
<provider
android:name=".DbContentProvider"
android:authorities="com.example.provider"
android:exported="false"
android:grantUriPermissions="false" >
<grant-uri-permission android:pathPrefix="/products" />
</provider>
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
android:theme="@android:style/Theme.Translucent" >
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
</activity>
<activity
android:name=".SplashActivity"
android:label="@string/app_name"
android:launchMode="singleTop" >
<intent-filter android:label="@string/app_name_short">
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".LoginActivity"
android:label="@string/title_activity_login"
android:windowSoftInputMode="stateHidden" >
</activity>
<activity
android:name=".HomeActivity"
android:label="@string/app_name_short"
android:windowSoftInputMode="adjustPan" >
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
</activity>
<activity
android:name=".SearchResultsActivity"
android:label="@string/app_name_short"
android:launchMode="singleTop"
android:parentActivityName=".HomeActivity"
android:windowSoftInputMode="stateHidden" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".HomeActivity" />
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
</activity>
<activity
android:name=".SingleShoppingListActivity"
android:label="@string/shopping_list"
android:parentActivityName=".HomeActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".HomeActivity" />
</activity>
<activity
android:name=".SingleProductActivity"
android:label="@string/shopping_list_item"
android:parentActivityName=".HomeActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".HomeActivity" />
</activity>
<activity
android:name=".InfoMenuActivity"
android:label="@string/why_gmo_free"
android:parentActivityName=".HomeActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".HomeActivity" />
</activity>
<activity
android:name=".InfoContentActivity"
android:label="@string/why_gmo_free"
android:parentActivityName=".InfoMenuActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".InfoMenuActivity" />
</activity>
<activity
android:name=".SettingsActivity"
android:label="@string/settings"
android:parentActivityName=".HomeActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".HomeActivity" />
</activity>
<activity
android:name=".TwitterCallbackActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data
android:host="twitter"
android:scheme="oauth" />
</intent-filter>
</activity>
<activity
android:name=".DummyActivity"
android:label="@string/title_activity_dummy" >
</activity>
<activity
android:name=".SmartSearchResultsActivity"
android:label="@string/app_name_short"
android:parentActivityName=".SearchResultsActivity"
android:windowSoftInputMode="stateHidden" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
</intent-filter>
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".SearchResultsActivity" />
<meta-data
android:name="android.app.searchable"
android:resource="@xml/searchable" />
<meta-data
android:name="android.app.default_searchable"
android:value=".SearchResultsActivity" />
</activity>
<activity
android:name=".WebViewActivity"
android:label="@string/app_name_short"
android:parentActivityName=".HomeActivity" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value=".HomeActivity" />
</activity>
<activity
android:name=".UpgradeActivity"
android:label="@string/upgrade_to_pro_qm" >
</activity>
</application>
</manifest>