PowerPoint : PPT Reader

STEP - 1 : Create a New Project

STEP - 2 : Paste  a library to lib folder

Click here to download : itsrts-pptviewer.jar



STEP - 3 : Add dependency to App level Gradle
build.gradle (App)
Inside dependency

compile files('libs/itsrts-pptviewer.jar')

STEP - 4 : Add permission to Manifest

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

STEP - 5 : Paste or Download a ppt into your phone download folder.

STEP - 6 : Inside your activity, paste your code which show ppt file

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:padding="@dimen/activity_horizontal_margin"    >
    <com.itsrts.pptviewer.PPTViewer        android:id="@+id/pptviewer"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_marginTop="24dp"        />
</RelativeLayout>

MainActivity.java

import android.os.Environment;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import com.itsrts.pptviewer.PPTViewer;import java.io.File;
public class MainActivity extends AppCompatActivity {

    PPTViewer pptViewer;    String path = null;    @Override    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);
        pptViewer = (PPTViewer) findViewById(R.id.pptviewer);
        File f = new File(Environment.getExternalStorageDirectory().getPath(), "/Download/fashion.ppt");

        //  File f = FileUtils.fileFromAsset(MainActivity.this, "junit.ppt");          path = f.getPath().toString();
        pptViewer.setNext_img(R.drawable.next).setPrev_img(R.drawable.prev)
                .setSettings_img(R.drawable.settings)
                .setZoomin_img(R.drawable.zoomin)
                .setZoomout_img(R.drawable.zoomout);        pptViewer.loadPPT(this, path);
    }
}

STEP - 7 : Create a class, which handle the interation between app storage ( Phone or Assets)

FileUtils.java

import android.content.Context;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;
public class FileUtils {

    private FileUtils() {
        // Prevents instantiation    }

    public static File fileFromAsset(Context context, String assetName) throws IOException {
        File outFile = new File(context.getCacheDir(), assetName + "-pdfview.pdf");        if (assetName.contains("/")) {
            outFile.getParentFile().mkdirs();        }
        copy(context.getAssets().open(assetName), outFile);        return outFile;    }

    public static void copy(InputStream inputStream, File output) throws IOException {
        OutputStream outputStream = null;        try {
            outputStream = new FileOutputStream(output);            int read = 0;            byte[] bytes = new byte[1024];            while ((read = inputStream.read(bytes)) != -1) {
                outputStream.write(bytes, 0, read);            }
        } finally {
            try {
                if (inputStream != null) {
                    inputStream.close();                }
            } finally {
                if (outputStream != null) {
                    outputStream.close();                }
            }
        }
    }
}

\\\