Nsryjdtyk

I have a PDF reading activity that won't open for whatever reason. I suspect that the issue stems from an API that I had imported earlier. When I previewed the XML file in the PDF-reading activity, I noticed that there was a question mark next to the PDF-API, indicating that it hasn't been recognized by android studio I'd be extremely appreciative if anyone could help me figure this out. Here's the code:

XML:

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:app="http://schemas.android.com/apk/res-auto"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    tools:context=".PDFReader">



    <com.github.barteksc.pdfviewer.PDFView

        android:id="@+id/pdfViewer"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintHorizontal_bias="1.0"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintRight_toRightOf="parent">



    </com.github.barteksc.pdfviewer.PDFView>



</android.support.constraint.ConstraintLayout> 

Java:

  package com.androidcodefinder.loginscreendemo.Analytics;



import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.support.annotation.Nullable;

import android.support.v7.app.AppCompatActivity;

import android.util.Log;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.widget.Button;



import com.androidcodefinder.loginscreendemo.MainActivity;

import com.androidcodefinder.loginscreendemo.R;

import com.androidcodefinder.loginscreendemo.SignUpActivity;

import com.androidcodefinder.loginscreendemo.Utils.BottomNavigationViewHelper;

import com.github.barteksc.pdfviewer.PDFView;

import com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx;



public class AnalyticsActivity extends AppCompatActivity {

    private static final String TAG = "AnalyticsActivity";

    private Context mContext= AnalyticsActivity.this;

    private static final int ACTIVITY_NUM = 0;

    private Button pdfViwer;

    private Button pdfViwer2;

    @Override

    protected void onCreate(@Nullable Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.analytics_activity);

        Log.d(TAG,"onCreate: started");



        setupBottomNavigationView();

        pdfViwer=(Button)findViewById(R.id.pdf23);

        pdfViwer.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                Intent intent = new Intent(AnalyticsActivity.this,PDFView.class);

                startActivity(intent);

            }

        });

        pdfViwer2=(Button)findViewById(R.id.pdf22);

        pdfViwer2.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View view) {

                Intent intent = new Intent(AnalyticsActivity.this,PDFView.class);

                startActivity(intent);

            }

        });



    }



    private void setupBottomNavigationView(){

        Log.d(TAG,"setupBottomNavigationView: setting up BottomNavigationView");

        BottomNavigationViewEx bottomNavigationViewEx = (BottomNavigationViewEx) findViewById(R.id.bottomNavViewBar);

        BottomNavigationViewHelper.setupBottomNavigationView(bottomNavigationViewEx);

        BottomNavigationViewHelper.enableNavigation(mContext, bottomNavigationViewEx);

        Menu menu = bottomNavigationViewEx.getMenu();

        MenuItem menuItem = menu.getItem(ACTIVITY_NUM);

        menuItem.setChecked(true);

    }

} 

Here's a screenshot of the error:

Manifest code:

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.androidcodefinder.loginscreendemo">



    <!-- To auto-complete the email text field in the login form with the user's emails -->

    <uses-permission android:name="android.permission.GET_ACCOUNTS" />

    <uses-permission android:name="android.permission.READ_PROFILE" />

    <uses-permission android:name="android.permission.READ_CONTACTS" />

    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />



    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_background"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />



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

            </intent-filter>

        </activity>

        <activity android:name=".SignUpActivity" />

        <activity android:name=".zippage" />

        <activity android:name=".Catalysts.CatalystsActivity" />

        <activity android:name=".Profile.ProfileActivity" />

        <activity android:name=".Analytics.AnalyticsActivity" />

        <activity android:name=".postpg" />

        <activity android:name=".postp1" />

        <activity android:name=".post2" />

        <activity android:name=".postend" />

        <activity android:name=".PDFReader"></activity>

    </application>



</manifest>

Edit

Declare your activity inside AndroidManifest.xml like this

<application

    .

    .

    android:theme="@style/AppTheme">



    <activity android:name=".PDFReader">

    </activity> 

    .

    .

</application>

Shouldn't this

Intent intent = new Intent(AnalyticsActivity.this,PDFView.class);

Be that?

Intent intent = new Intent(AnalyticsActivity.this.PDFReader.class);

You are finding views

pdfViwer=(Button)findViewById(R.id.pdf23);

pdfViwer2=(Button)findViewById(R.id.pdf22);

with id pdf23,pdf22 but these two not available in your xml file. So it will throw run time exception.