How to open pdf file directly android

See more:

Java

Android

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

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

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".pdfwatch" />
        <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=".MainActivity3">
    <intent-filter android:scheme="http">
        <action android:name="android.intent.action.VIEW" />

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


        <data android:mimeType="application/pdf" />
    </intent-filter>
        </activity>
    </application>

public class MainActivity3 extends AppCompatActivity {
    PDFView pdfviewer;
    PDFView pfc;

    private static final int REQUEST_CODE_STORAGE_PERMISSION =1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);
        pfc = (PDFView) findViewById(R.id.pdfView1);
    //    Intent intent = new Intent("android.intent.action.VIEW");
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        Uri contactUri = intent.getData();
        pfc.fromUri(contactUri).load();

    }

What I have tried:

i am trying to open the file directly by clicking the pdf file in my app to view but its not working but its not working . I know by listview method but i want to open it directly.please someone help.