Java tutorial
/** * */ package com.gmail.charleszq.picorner.ui; import android.app.AlertDialog; import android.app.ProgressDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.net.Uri; import android.os.Bundle; import android.provider.Settings.Secure; import android.support.v4.app.Fragment; import android.util.Log; import android.view.MenuItem; import android.widget.Toast; import com.android.vending.licensing.AESObfuscator; import com.android.vending.licensing.LicenseChecker; import com.android.vending.licensing.LicenseCheckerCallback; import com.android.vending.licensing.ServerManagedPolicy; import com.gmail.charleszq.picorner.BuildConfig; import com.gmail.charleszq.picorner.PicornerApplication; import com.gmail.charleszq.picorner.R; import com.gmail.charleszq.picorner.model.MediaObjectCollection; import com.gmail.charleszq.picorner.msg.MessageBus; import com.gmail.charleszq.picorner.ui.command.CommandType; import com.gmail.charleszq.picorner.ui.command.ICommand; import com.gmail.charleszq.picorner.ui.command.ICommandDoneListener; import com.gmail.charleszq.picorner.ui.command.PhotoListCommand; import com.gmail.charleszq.picorner.ui.command.flickr.FlickrIntestringCommand; import com.gmail.charleszq.picorner.ui.command.ig.InstagramPopularsCommand; import com.gmail.charleszq.picorner.ui.command.px500.PxEditorsPhotosCommand; import com.gmail.charleszq.picorner.ui.command.px500.PxFreshTodayPhotosCommand; import com.gmail.charleszq.picorner.ui.command.px500.PxPopularPhotosCommand; import com.gmail.charleszq.picorner.ui.command.px500.PxUpcomingPhotosCommand; import com.gmail.charleszq.picorner.utils.IConstants; import com.slidingmenu.lib.SlidingMenu; import com.slidingmenu.lib.app.SlidingFragmentActivity; /** * @author Charles(charleszq@gmail.com) * */ public class MainSlideMenuActivity extends SlidingFragmentActivity { private static final String TAG = MainSlideMenuActivity.class.getSimpleName(); private Fragment mContent; private ICommand<MediaObjectCollection> mCommand; // License Check private static final String BASE64_PUBLIC_KEY = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkk2BWGUWXSRKCy31ytmFNYD09qq9AHpEfd+jz3/zyi3ykKVbWYdTIS+RZCio3fGAa1pMQHai6TZe1h+qpsR0EyMnlqgB5A23kwu5MI43uelw8JDgCJznXkZv7n3NJcG2uUNqMCz/VbGHukXXQkynx7PD2RDJLF9GQXIX2O/BA5iy9CvKLaIP++SfjTd/KS78KWfRTMqJCVqqIDadznMKHwH2ThJSCWHwdfrJG4TksEumiIZzbJmA3SFVt47qHZse0rpQhXlJ7Cob1gK/EsmkRkGcGrEGh+DeAFf70E5Nj7tY+yrw0bwBQtEPKYar27WZUP76GjW4ujgxXIaB1B9JbwIDAQAB"; //$NON-NLS-1$ // Generate your own 20 random bytes, and put them here. private static final byte[] SALT = new byte[] { -46, 79, 83, -128, -103, -57, 74, -64, 51, 88, -95, -45, 77, -117, -36, -113, -11, 32, -64, 89 }; private LicenseCheckerCallback mLicenseCheckerCallback; private LicenseChecker mChecker; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getActionBar().setDisplayHomeAsUpEnabled(true); customizeSlideMenu(); // set the Above View if (savedInstanceState != null) mContent = getSupportFragmentManager().getFragment(savedInstanceState, "mContent"); //$NON-NLS-1$ if (mContent == null) { mContent = new PhotoGridFragment(); } // set the Above View setContentView(R.layout.content_frame); getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, mContent).commit(); // set the Behind View setBehindContentView(R.layout.menu_frame); getSupportFragmentManager().beginTransaction().replace(R.id.menu_frame, new MainMenuFragment()).commit(); // secondary menu getSlidingMenu().setSecondaryMenu(R.layout.menu_frame_two); getSlidingMenu().setSecondaryShadowDrawable(R.drawable.shadowright); getSupportFragmentManager().beginTransaction().replace(R.id.menu_frame_two, new SecondaryMenuFragment()) .commit(); // customize the SlidingMenu getSlidingMenu().setTouchModeAbove(SlidingMenu.TOUCHMODE_FULLSCREEN); } /** * When first time this activity starts, load default photo list, now it's * flickr interesting photos. */ void loadDefaultPhotoList() { MessageBus.reset(); mCommand = getDefaultCommand(); final ProgressDialog dialog = ProgressDialog.show(this, "", getString(R.string.loading_photos)); //$NON-NLS-1$ dialog.setCancelable(true); mCommand.setCommndDoneListener(new ICommandDoneListener<MediaObjectCollection>() { @Override public void onCommandDone(ICommand<MediaObjectCollection> command, MediaObjectCollection t) { MainSlideMenuActivity.this.onCommandDone(command, t); if (dialog != null && dialog.isShowing()) { try { dialog.dismiss(); } catch (Exception ex) { } } } }); mCommand.execute(); } private PhotoListCommand getDefaultCommand() { SharedPreferences sp = this.getSharedPreferences(IConstants.DEF_PREF_NAME, Context.MODE_APPEND); String defaultCommandString = sp.getString(IConstants.PREF_DEFAULT_PHOTO_LIST, "1"); //$NON-NLS-1$ switch (Integer.parseInt(defaultCommandString)) { case 1: return new PxPopularPhotosCommand(this); case 2: return new PxEditorsPhotosCommand(this); case 3: return new PxUpcomingPhotosCommand(this); case 4: return new PxFreshTodayPhotosCommand(this); case 5: return new FlickrIntestringCommand(this); default: return new InstagramPopularsCommand(this); } } @Override protected void onNewIntent(Intent intent) { setIntent(intent); } private void customizeSlideMenu() { // customize the SlidingMenu SlidingMenu sm = getSlidingMenu(); sm.setShadowWidthRes(R.dimen.shadow_width); sm.setShadowDrawable(R.drawable.shadow); sm.setBackgroundColor(getResources().getColor(R.color.menu_frame_bg_color)); sm.setBehindOffsetRes(R.dimen.slidingmenu_offset); sm.setFadeDegree(0.35f); sm.setMode(SlidingMenu.LEFT_RIGHT); } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { getSlidingMenu().showMenu(); return true; } return super.onOptionsItemSelected(item); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); getSupportFragmentManager().putFragment(outState, "mContent", mContent); //$NON-NLS-1$ } void onCommandDone(ICommand<?> command, Object result) { CommandType type = command.getCommandType(); switch (type) { case PHOTO_LIST_CMD: if (mContent instanceof PhotoGridFragment) { MediaObjectCollection col = (MediaObjectCollection) result; if (col == null || col.getPhotos().isEmpty()) { String msg = getString(R.string.msg_no_photo_returned); Toast.makeText(this, String.format(msg, command.getDescription()), Toast.LENGTH_SHORT).show(); return; } ((PhotoGridFragment) mContent).populatePhotoList((MediaObjectCollection) result, command); } else { Log.w(TAG, "Not photo grid fragment?"); //$NON-NLS-1$ } break; default: break; } } void closeMenu() { this.getSlidingMenu().toggle(); } @Override protected void onDestroy() { super.onDestroy(); if (mChecker != null) { mChecker.onDestroy(); } } /* * (non-Javadoc) * * @see android.support.v4.app.FragmentActivity#onResume() */ @Override protected void onResume() { super.onResume(); if (!((PicornerApplication) getApplication()).isLicensed()) { if (!BuildConfig.DEBUG) { checkLicense(); } } } private void checkLicense() { if (mLicenseCheckerCallback == null) { // Library calls this when it's done. mLicenseCheckerCallback = new MyLicenseCheckerCallback(); } if (mChecker == null) { // Construct the LicenseChecker with a policy. // Try to use more data here. ANDROID_ID is a single point of // attack. String deviceId = Secure.getString(getContentResolver(), Secure.ANDROID_ID); mChecker = new LicenseChecker(this, new ServerManagedPolicy(this, new AESObfuscator(SALT, getPackageName(), deviceId)), BASE64_PUBLIC_KEY); } mChecker.checkAccess(mLicenseCheckerCallback); } private void onInvalidLicense() { new AlertDialog.Builder(MainSlideMenuActivity.this).setTitle(R.string.unlicensed_dialog_title) .setMessage(R.string.unlicensed_dialog_body) .setPositiveButton(R.string.buy_button, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Uri uri = Uri.parse("https://play.google.com/store/apps/details?id=" //$NON-NLS-1$ + PicornerApplication.class.getPackage().getName()); Intent marketIntent = new Intent(Intent.ACTION_VIEW, uri); startActivity(marketIntent); } }).setNegativeButton(R.string.quit_button, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { finish(); } }).create().show(); } private class MyLicenseCheckerCallback implements LicenseCheckerCallback { public void allow() { if (isFinishing()) { // Don't update UI if Activity is finishing. return; } // Should allow user access. ((PicornerApplication) getApplication()).setLicensedTrue(); } public void dontAllow() { if (isFinishing()) { // Don't update UI if Activity is finishing. return; } // Should not allow access. In most cases, the app should assume // the user has access unless it encounters this. If it does, // the app should inform the user of their unlicensed ways // and then either shut down the app or limit the user to a // restricted set of features. // In this example, we show a dialog that takes the user to Market. onInvalidLicense(); } public void applicationError(ApplicationErrorCode errorCode) { if (isFinishing()) { // Don't update UI if Activity is finishing. return; } if (!ApplicationErrorCode.NOT_MARKET_MANAGED.equals(errorCode)) { // This is a polite way of saying the developer made a mistake // while setting up or calling the license checker library. // Please examine the error code and fix the error. String result = String.format(getString(R.string.application_error), errorCode); Log.w(TAG, result); } } } }