All geek questions in one place

Sharing Facebook with Android Studio

Dear people from stackoverflow,

I am afraid that I really need help. There is one problem that I am encountering with my application. I am creating an application in which there are three buttons: one to see the link, one for intention and one for exchanging things on facebook (the reason is that you cannot send the material with the intention anymore, or so they told me) However, according to the site Facebook Developer, I have to get a sharing button. With my code, everything is crashing and the only thing I see is the sharing dialog. My question is: what is the main mistake I made?

My main activity code:

package things;
import android.app.Fragment;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.support.v4.app.FragmentActivity;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.JavascriptInterface;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.view.View.OnClickListener;

import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.share.ShareApi;
import com.facebook.share.Sharer;
import com.facebook.share.model.ShareLinkContent;
import com.facebook.share.widget.ShareButton;
import com.facebook.share.widget.ShareDialog;

import java.util.Random;


public class MainActivity extends ActionBarActivity {

private Button btnScore;
private Button btnShare;

private static String APP_ID = "things";

CallbackManager callbackManager;
ShareDialog shareDialog;

//ms = mobile Scores
WebView msWebView;
WebView mfWebView;


ShareLinkContent content = new ShareLinkContent.Builder()
        .setContentTitle("Test")
        .setContentUrl(Uri.parse("http://developers.facebook.com/android"))
        .setContentDescription("Play Something with your facebook friends and many more people!")
        .build();


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    FacebookSdk.sdkInitialize(getApplicationContext());

    //Facebook for  sharing
    callbackManager = CallbackManager.Factory.create();
    shareDialog = new ShareDialog(this);
    final ShareButton shareButton = (ShareButton) findViewById(R.id.fb_share_button);


    int score = 64;

    //Searches the phone for apps that can share simple data
    final Intent sendIntent = new Intent();
    sendIntent.setAction(Intent.ACTION_SEND);
    sendIntent.setType("text/plain");
    sendIntent.putExtra(Intent.EXTRA_TEXT, "My score of the last game  was: " + score + " \n Can you beat my score?");

    //This is for the share dialog to show





    //an iff statement if it shows
    if (ShareDialog.canShow(ShareLinkContent.class)) {
        ShareLinkContent linkContent = new ShareLinkContent.Builder()
                .setContentTitle("Hello Facebook")
                .setContentDescription(
                        "The 'Hello Facebook' sample  showcases simple Facebook integration")
                .setContentUrl(Uri.parse("http://developers.facebook.com/android"))
                .build();

        shareDialog.show(linkContent);
    }
    shareButton.setShareContent(content);

    //The buttons
    btnScore=(Button)findViewById(R.id.btnScores);
    btnShare =(Button)findViewById(R.id.btnShare);



    //the score Webview link
    msWebView = new WebView(this);
    msWebView.loadUrl("Thing");
    msWebView.setWebViewClient(new WebViewClient(){
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String     url){
            view.loadUrl(url);
            return true;
        }
    });

   ShareDialog.show(this, content);
   btnScore.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View vw) {
            setContentView(msWebView);
        }
    });

    //the share button
    btnShare.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View vw)     {startActivity(Intent.createChooser(sendIntent, "share..."));

        }
    });
    shareButton.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            shareButton.setShareContent(content);
        }
    }     );
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu.
    // Adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.menu_main, menu);

    // Access the Share Item defined in menu XML


    return true;
}

//special method to handle the callbackmanager
@Override
protected void onActivityResult(final int requestCode, final int  resultCode, final Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    callbackManager.onActivityResult(requestCode, resultCode, data);
    ShareDialog.show(this, content);
}

@Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    //noinspection SimplifiableIfStatement
    if (id == R.id.menu_item_share) {
       return true;
    }

    return super.onOptionsItemSelected(item);
}


}

My Activity_Main.XML:

<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"     tools:context=".MainActivity"
android:background="#ffd2e489">

<TextView android:text="Results"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/text"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="View"
    android:id="@+id/btnScores"
    android:background="#ffff7878"
    android:layout_marginTop="40dp"
    android:layout_below="@+id/text"
    android:layout_alignParentLeft="true"
    android:layout_alignParentStart="true"
    android:layout_toLeftOf="@+id/text"
    android:layout_toStartOf="@+id/text" />

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Share"
    android:id="@+id/btnShare"
    android:background="#ff20f6ff"
    android:layout_alignTop="@+id/btnScores"
    android:layout_toRightOf="@+id/text"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true" />

<com.facebook.share.widget.ShareButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/fb_share_button"
android:text="SHARE"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="175dp" />


</RelativeLayout>

And just in case, my Android: Manifest:      

<uses-permission android:name="android.permission.INTERNET" />
<application
    android:name=".MyApplication"
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <meta-data android:name="com.facebook.sdk.ApplicationId"    android:value="@string/app_id"/>
    <activity

        android:name=".MainActivity"
        android:label="@string/app_name" >

        <intent-filter>
            <provider   android:authorities="com.facebook.app.FacebookContentProviderthings"
                android:name="com.facebook.FacebookContentProvider"
                android:exported="true"/>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.DEFAULT"/>
            <data android:mimeType="text/plain"/>
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name="com.facebook.FacebookActivity"
        android:configChanges=
            "keyboard|keyboardHidden|screenLayout|screenSize|orientation"
        android:theme="@android:style/Theme.Translucent.NoTitleBar"
        android:label="@string/app_name" />
    android:debuggable="true"
</application>

</manifest>

, , , , .

!

: facebookSDK 4.0.

2.0: :

 Caused by: java.lang.NullPointerException
        at things.MainActivity.onCreate(MainActivity.java:93)
        at android.app.Activity.performCreate(Activity.java:5231)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2201)

3.0 Logcat:

 Process: nl.test.test, PID: 12287
java.lang.ExceptionInInitializerError
        at java.lang.reflect.Constructor.constructNative(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at android.view.LayoutInflater.createView(LayoutInflater.java:594)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:755)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:397)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:353)
        at android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:240)
        at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
        at nl.test.test.MainActivity.onCreate(MainActivity.java:60)
        at android.app.Activity.performCreate(Activity.java:5231)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2201)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
        at android.app.ActivityThread.access$800(ActivityThread.java:144)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
        at android.os.Handler.dispatchMessage(Handler.java:102)
        at android.os.Looper.loop(Looper.java:212)
        at android.app.ActivityThread.main(ActivityThread.java:5135)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:515)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
        at dalvik.system.NativeStart.main(Native Method)
 Caused by: null
        at com.facebook.internal.Validate.sdkInitialized(Validate.java:99)
        at com.facebook.FacebookSdk.getCallbackRequestCodeOffset(FacebookSdk.java:735)
        at com.facebook.internal.CallbackManagerImpl$RequestCodeOffset.toRequestCode(CallbackManagerImpl.java:109)
        at com.facebook.share.widget.ShareButton.<clinit>   (ShareButton.java:36)
    at java.lang.reflect.Constructor.constructNative(Native Method)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    at android.view.LayoutInflater.createView(LayoutInflater.java:594)
    at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:696)

android.view.LayoutInflater.rInflate(LayoutInflater.java:755)

android.view.LayoutInflater.inflate(LayoutInflater.java:492)



android.view.LayoutInflater.inflate(LayoutInflater.java:397)

   android.view.LayoutInflater.inflate(LayoutInflater.java:353)
android.support.v7.app.ActionBarActivityDelegateBase.setContentView(ActionBarActivityDelegateBase.java:240)
                android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:102)
            test.MainActivity.onCreate(MainActivity.java:60)
            at android.app.Activity.performCreate(Activity.java:5231)
             android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
            android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2201)
            android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2286)
            android.app.ActivityThread.access$800(ActivityThread.java:144)                   android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
            android.os.Handler.dispatchMessage(Handler.java:102)
            android.os.Looper.loop(Looper.java:212)
        android.app.ActivityThread.main(ActivityThread.java:5135)
        java.lang.reflect.Method.invokeNative(Native Method)
        java.lang.reflect.Method.invoke(Method.java:515)
        com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:878)
        com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
dalvik.system.NativeStart.main(Native Method)
+4
1

, . : :

super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());

:

FacebookSdk.sdkInitialize(getApplicationContext()); 
super.onCreate(savedInstanceState);

, SDK Facebook, , SDK Facebook .

, - , , !

+7

Source: https://habr.com/ru/post/1584468/

More articles:


All Articles