Java tutorial
/* * Copyright 2014 Klinker Apps Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.klinker.android.launcher.addons.settings.page_picker; import android.app.ActionBar; import android.app.Activity; import android.content.Context; import android.content.SharedPreferences; import android.graphics.Point; import android.os.Bundle; import android.preference.PreferenceManager; import android.support.v4.view.ViewPager; import android.view.Display; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.WindowManager; import com.klinker.android.launcher.R; import com.klinker.android.launcher.addons.settings.AppSettings; import com.klinker.android.launcher.addons.settings.SettingsActivity; public class PagePickerActivity extends Activity { public static final String SAVE_FRAGS = "com.klinker.android.twitter.SAVE_FRAGS"; private PickerPagerAdapter mSectionsPagerAdapter; private Context context; private SharedPreferences sharedPrefs; private AppSettings settings; private ActionBar actionBar; private ViewPager mViewPager; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); context = this; sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context); settings = AppSettings.getInstance(this); setUpWindow(); setContentView(R.layout.page_picker_activity); actionBar = getActionBar(); actionBar.setTitle(getString(R.string.fragment_picker)); mSectionsPagerAdapter = new PickerPagerAdapter(getFragmentManager(), context); mViewPager = (ViewPager) findViewById(R.id.pager); mViewPager.setAdapter(mSectionsPagerAdapter); mViewPager.setCurrentItem(4); mViewPager.setOffscreenPageLimit(5); } public void setUpWindow() { //requestWindowFeature(Window.FEATURE_ACTION_BAR); getWindow().setFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND, WindowManager.LayoutParams.FLAG_DIM_BEHIND); // Params for the window. // You can easily set the alpha and the dim behind the window from here WindowManager.LayoutParams params = getWindow().getAttributes(); params.alpha = 1.0f; // lower than one makes it more transparent params.dimAmount = .87f; // set it higher if you want to dim behind the window getWindow().setAttributes(params); // Gets the display size so that you can set the window to a percent of that Display display = getWindowManager().getDefaultDisplay(); Point size = new Point(); display.getSize(size); int width = size.x; int height = size.y; // You could also easily used an integer value from the shared preferences to set the percent if (height > width) { getWindow().setLayout((int) (width * .85), (int) (height * .7)); } else { getWindow().setLayout((int) (width * .5), (int) (height * .8)); } } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.frag_picker, menu); return super.onCreateOptionsMenu(menu); } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_done: SettingsActivity.prefChanged = true; finish(); return super.onOptionsItemSelected(item); default: return super.onOptionsItemSelected(item); } } }