Facebook的SDK 4.0.0，ShareDialog在Android上总是空 [英] Facebook SDK 4.0.0, ShareDialog on Android is always null
问题描述
我想用它的SDK在Facebook上分享的东西。我参考分享对话框基于在Facebook SDK 4.0.0的Facebook 的。
I want to share something on Facebook using its SDK. My reference is Share Dialog by Facebook based on Facebook SDK 4.0.0.
CallbackManager callbackManager;
ShareDialog shareDialog;
@Override
protected void onCreate(final Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
this.getWindow().addFlags(Window.FEATURE_NO_TITLE);
this.setContentView(R.layout.v3_activity_splash);
// Init Facebook SDK
FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();
shareDialog = new ShareDialog(this);
shareOnFacebook("This is test...");
...
}
private void shareOnFacebook(String content)
{
if (ShareDialog.canShow(ShareLinkContent.class))
{
Log.e("Test", "inside shareOnFacebook()");
// ShareLinkContent shareLinkContent = new ShareLinkContent.Builder().setContentDescription(content).build();
ShareLinkContent linkContent = new ShareLinkContent.Builder()
.setContentTitle("Hello Facebook")
.setContentDescription(content)
.setContentUrl(Uri.parse("http://developers.facebook.com/android"))
.build();
shareDialog.show(linkContent);
}
else
{
Toast.makeText(this, "NOT CALLED", Toast.LENGTH_SHORT).show();
}
}
@Override
protected void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
Log.e("Test", "Yes, Uuu bitch!!!");
}
我也有如下的应用标记中在我的清单文件code线：
I also have following lines of code in my manifest file within Application tag:
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="MY_APP_ID"/>
<provider
android:name="com.facebook.FacebookContentProvider"
android:authorities="com.facebook.app.FacebookContentProviderMY_APP_ID"
android:exported="true"/>
我的问题是NullPointerException异常，当我发动 shareDialog.show（linkContent）应用程序/活动; 行。然而，有趣的是， shareDialog IS NOT NULL根据我调试:(所以不知道为什么NullPointerException异常抛出。我还没有看到我的日志<$ C的$ C>的onActivityResult 因此该功能不会被调用。
My problem is NullPointerException when I launch the app/activity on shareDialog.show(linkContent); line. However, funny thing is shareDialog is not null based on my debug :( So have no idea why "NullPointerException" throws. I also don't see my log of onActivityResult therefore this function does not get called.
最后，日志显示：
Process: MY_PCKAGE_NAME, PID: 2152
java.lang.RuntimeException: Unable to start activity ComponentInfo{MY_PCKAGE_NAME/MY_PCKAGE_NAME.v3.splash.SplashActivity}: java.lang.NullPointerException
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2281)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2359)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5230)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:780)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:596)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:883)
at com.facebook.internal.Utility.getDialogFeatureConfig(Utility.java:859)
at com.facebook.internal.DialogPresenter.getVersionSpecForFeature(DialogPresenter.java:247)
at com.facebook.internal.DialogPresenter.getProtocolVersionForNativeDialog(DialogPresenter.java:234)
at com.facebook.internal.DialogPresenter.canPresentNativeDialogWithFeature(DialogPresenter.java:75)
at com.facebook.share.widget.ShareDialog.canShowNative(ShareDialog.java:133)
at com.facebook.share.widget.ShareDialog.access$300(ShareDialog.java:55)
at com.facebook.share.widget.ShareDialog$NativeHandler.canShow(ShareDialog.java:241)
at com.facebook.share.widget.ShareDialog$NativeHandler.canShow(ShareDialog.java:233)
at com.facebook.internal.FacebookDialogBase.createAppCallForMode(FacebookDialogBase.java:184)
at com.facebook.internal.FacebookDialogBase.showImpl(FacebookDialogBase.java:147)
at com.facebook.internal.FacebookDialogBase.show(FacebookDialogBase.java:142)
at MY_PCKAGE_NAME.splash.SplashActivity.shareOnFacebook(SplashActivity.java:414)
at MY_PCKAGE_NAME.splash.SplashActivity.onCreate(SplashActivity.java:93)
at android.app.Activity.performCreate(Activity.java:5411)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2359)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1256)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5230)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:780)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:596)
at dalvik.system.NativeStart.main(Native Method)
任何建议将AP preciated。谢谢你。
Any suggestion would be appreciated. Thanks.
推荐答案
我刚刚创建了一个示例项目找到哪里是我的问题，终于发现我有两个错误。其实他们中的一个是不是因为我，Facebook是疯了！
I just created a sample project to find where is my problem and finally found I had two mistakes. Actually one of them is not because of me, Facebook is crazy!
1）我忘了Facebook的活动添加到我的清单文件（这就是为什么我没有得到的日志的onActivityResult ）
1) I forgot to add Facebook activity into my manifest file (That's why I didn't get log of OnActivityResult)
<!-- Facebook -->
<activity
android:name="com.facebook.FacebookActivity"
android:configChanges=
"keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:label="@string/app_name"
android:theme="@android:style/Theme.Translucent.NoTitleBar"/>
2）您的必须的创建 facebook_app_id strings.xml档案中并链接元数据里面，与其直接把你的APP_ID那里。
2) You MUST create facebook_app_id inside your strings.xml file and link meta-data to that instead of directly put your app_id there.
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="@string/facebook_app_id"/>
这些更改后，我能看到Facebook的对话框在我的项目。
这些东西浪费掉我，希望这两天不会发生在你身上。
After these changes I'm able to see Facebook dialog in my project. These things wasted TWO days of mine and hope doesn't happen to you.
这篇关于Facebook的SDK 4.0.0，ShareDialog在Android上总是空的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
