Question

我正在尝试在我的应用中添加facebook登录按钮。在进行更改和编译之后没有错误，但是当我尝试在模拟器中运行它时，通过给出此消息“不幸”我的应用程序“已停止”而崩溃

有人可以告诉我如何解决这个问题吗？

提前致谢

这是我的主动文件

Public class learningActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_learning);
        getUserInfo();
    }

    public void getUserInfo() {

        try{
        PackageInfo info= getPackageManager().getPackageInfo(getPackageName(), PackageManager.GET_SIGNATURES);
        for(Signature signature:info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("Key Hash:- ", Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }


        }
        catch (PackageManager.NameNotFoundException e) {}
        catch (NoSuchAlgorithmException e){}



    }


}

这是我的主要文件：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.prashant.nuhani_go" >

    <!-- To access Google+ APIs: -->
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />


    <!--
 To retrieve OAuth 2.0 tokens or invalidate tokens to disconnect a user. This disconnect
     option is required to comply with the Google+ Sign-In developer policies
    -->
    <uses-permission android:name="android.permission.USE_CREDENTIALS" /> <!-- To retrieve the account name (email) as part of sign-in: -->
    <uses-permission android:name="android.permission.GET_ACCOUNTS" /> <!-- To auto-complete the email text field in the login form with the user's emails -->
    <uses-permission android:name="android.permission.READ_PROFILE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.INTERNET" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >

        <meta-data

            android:name="com.facebook.sdk.AppId"
            android:value="@string/app_id">

        </meta-data>
        <activity
            android:name=".learningActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <activity android:name="com.facebook.FacebookActivity"/>
            android:configChanges=
                "<keyboard></keyboard>creenSize|orientation"
            android:theme="@android:style/Theme.Translucent.NoTitleBar"
            android:label="@string/app_name" />

        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
    </application>

</manifest>

不幸的是“我的应用程序”已停止

0 个答案: