com.greatbytes.guestmode.SetupActivity.java Source code

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Here is the source code for com.greatbytes.guestmode.SetupActivity.java

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/*
 * Copyright 2014 Great Bytes Software
 *
 * 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.greatbytes.guestmode;

import com.greatbytes.guestmode.ui.StepPagerStrip;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.util.TypedValue;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;

public class SetupActivity extends FragmentActivity {
    private ViewPager mPager;
    private MyPagerAdapter mPagerAdapter;

    private boolean mLastPage;

    private boolean mConsumePageSelectedEvent;

    private Button mNextButton;
    private Button mPrevButton;

    private StepPagerStrip mStepPagerStrip;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_setup);

        mPagerAdapter = new MyPagerAdapter(getSupportFragmentManager());
        mPager = (ViewPager) findViewById(R.id.pager);
        mPager.setAdapter(mPagerAdapter);
        mStepPagerStrip = (StepPagerStrip) findViewById(R.id.strip);
        mStepPagerStrip.setOnPageSelectedListener(new StepPagerStrip.OnPageSelectedListener() {
            @Override
            public void onPageStripSelected(int position) {
                position = Math.min(mPagerAdapter.getCount() - 1, position);
                if (mPager.getCurrentItem() != position) {
                    mPager.setCurrentItem(position);
                }
            }
        });

        mStepPagerStrip.setPageCount(2);

        mNextButton = (Button) findViewById(R.id.next_button);
        mPrevButton = (Button) findViewById(R.id.prev_button);

        mPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override
            public void onPageSelected(int position) {
                mStepPagerStrip.setCurrentPage(position);

                if (mConsumePageSelectedEvent) {
                    mConsumePageSelectedEvent = false;
                    return;
                }

                if (mPager.getCurrentItem() == 1) {
                    mLastPage = true;
                } else {
                    mLastPage = false;
                }

                updateBottomBar();
            }
        });

        mNextButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (mLastPage) {
                    finish();
                } else {
                    mPager.setCurrentItem(mPager.getCurrentItem() + 1);
                }
            }
        });

        mPrevButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                mPager.setCurrentItem(mPager.getCurrentItem() - 1);
            }
        });

        updateBottomBar();
    }

    public void advanceToLastPage() {
        mPager.setCurrentItem(mPager.getChildCount() - 1);
    }

    private void updateBottomBar() {
        int position = mPager.getCurrentItem();
        mNextButton.setText(mLastPage ? R.string.done : R.string.next);
        mNextButton.setBackgroundResource(R.drawable.selectable_item_background);
        TypedValue v = new TypedValue();
        getTheme().resolveAttribute(android.R.attr.textAppearanceMedium, v, true);
        mNextButton.setTextAppearance(this, v.resourceId);

        mPrevButton.setVisibility(position <= 0 ? View.INVISIBLE : View.VISIBLE);
    }

    public class MyPagerAdapter extends FragmentStatePagerAdapter {
        private Fragment mPrimaryItem;

        public MyPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int i) {
            switch (i) {
            case 0:
                return new SetupFragment();
            case 1:
                return new InfoFragment();
            }
            return null;
        }

        @Override
        public int getItemPosition(Object object) {
            if (object == mPrimaryItem) {
                // Re-use the current fragment (its position never changes)
                return POSITION_UNCHANGED;
            }

            return POSITION_NONE;
        }

        @Override
        public void setPrimaryItem(ViewGroup container, int position, Object object) {
            super.setPrimaryItem(container, position, object);
            mPrimaryItem = (Fragment) object;
        }

        @Override
        public int getCount() {
            return 2;
        }

    }
}