Java tutorial
/* Copyright 2011 Ezio Querini This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.github.naofum.epubconverter; import com.github.naofum.epubconverter.R; import com.google.android.gms.ads.AdListener; import com.google.android.gms.ads.AdRequest; import com.google.android.gms.ads.AdView; import com.google.android.gms.ads.InterstitialAd; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.Bundle; import android.os.Environment; import android.support.v4.view.MenuCompat; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class epubconverter extends Activity { String filename = ""; static String path; private SharedPreferences sharedPref; private final String PDF_EXT = ".pdf"; private final String EPUB_EXT = " - epubconverter.epub"; InterstitialAd mInterstitialAd; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); ((Button) findViewById(R.id.convert)).setOnClickListener(mConvertListener); ((Button) findViewById(R.id.preview)).setOnClickListener(mPreviewListener); Intent intent = getIntent(); // Get last path sharedPref = this.getPreferences(Context.MODE_PRIVATE); path = sharedPref.getString("path", Environment.getExternalStorageDirectory().getPath()); // To get the action of the intent use String action = intent.getAction(); if (action.equals(Intent.ACTION_VIEW)) { filename = intent.getDataString().replaceAll("%20", " "); if (filename.startsWith("file://")) { filename = filename.replace("file://", ""); pickActivity(); } } // mInterstitialAd = new InterstitialAd(this); mInterstitialAd.setAdUnitId(getString(R.string.interstitial_ad_unit_id)); AdRequest adRequest = new AdRequest.Builder().addTestDevice(AdRequest.DEVICE_ID_EMULATOR).build(); mInterstitialAd.loadAd(adRequest); mInterstitialAd.setAdListener(new AdListener() { @Override public void onAdLoaded() { if (mInterstitialAd.isLoaded()) { mInterstitialAd.show(); } } }); } // Inflate menu @SuppressWarnings("deprecation") public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.menu, menu); MenuCompat.setShowAsAction(menu.findItem(R.id.prefs), 1); return true; } // Menu item selected public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.prefs: startActivity(new Intent(epubconverter.this, Prefs.class)); return true; case R.id.info: startActivity(new Intent(epubconverter.this, Info.class)); return true; case R.id.license: startActivity(new Intent(epubconverter.this, License.class)); return true; default: return super.onOptionsItemSelected(item); } } // Convert button pressed View.OnClickListener mConvertListener = new OnClickListener() { public void onClick(View v) { if (Convert.started()) { // Conversion already started, show progress if (Convert.working()) { Toast.makeText(getApplicationContext(), getResources().getString(R.string.cip), Toast.LENGTH_SHORT).show(); } startActivity(new Intent(epubconverter.this, Convert.class)); } else { // Select a file Intent chooseFile = new Intent(epubconverter.this, FileChooser.class); chooseFile.putExtra("path", path); chooseFile.putExtra("filter", PDF_EXT); startActivityForResult(chooseFile, 0); } } }; // Preview button pressed View.OnClickListener mPreviewListener = new OnClickListener() { public void onClick(View v) { // Select a file Intent chooseFile = new Intent(epubconverter.this, FileChooser.class); chooseFile.putExtra("path", path); chooseFile.putExtra("filter", EPUB_EXT); startActivityForResult(chooseFile, 0); } }; // File selected protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK) { filename = data.getAction(); pickActivity(); } } // Start conversion or preview protected void pickActivity() { path = filename.substring(0, filename.lastIndexOf('/', filename.length()) + 1); SharedPreferences.Editor editor = sharedPref.edit(); editor.putString("path", path); editor.commit(); if (filename.endsWith(PDF_EXT)) { Intent convert = new Intent(epubconverter.this, Convert.class); convert.putExtra("filename", filename); startActivity(convert); } else if (filename.endsWith(EPUB_EXT)) { Intent preview = new Intent(epubconverter.this, Preview.class); preview.putExtra("filename", filename); startActivity(preview); } else { Toast.makeText(getApplicationContext(), getResources().getString(R.string.wrongfile), Toast.LENGTH_SHORT).show(); } } }