package se.slide.utils.about;
import android.app.ActionBar;
import android.app.Activity;
import android.graphics.RectF;
import android.os.Bundle;
import android.support.v4.app.NavUtils;
import android.text.Spannable;
import android.text.SpannableString;
import android.util.TypedValue;
import android.view.MenuItem;
import android.view.View;
import android.view.animation.AccelerateDecelerateInterpolator;
import android.widget.AbsListView;
import android.widget.ImageView;
import android.widget.ListView;
import se.slide.utils.R;
import java.util.ArrayList;
import java.util.List;
public abstract class NoBoringActionBarActivity extends Activity {
private static final String TAG = "NoBoringActionBarActivity";
private int mActionBarTitleColor;
private int mActionBarHeight;
private int mHeaderHeight;
private int mMinHeaderTranslation;
private ListView mListView;
protected KenBurnsView mHeaderPicture;
private ImageView mHeaderLogo;
private View mHeader;
private View mPlaceHolderView;
private AccelerateDecelerateInterpolator mSmoothInterpolator;
private RectF mRect1 = new RectF();
private RectF mRect2 = new RectF();
private AlphaForegroundColorSpan mAlphaForegroundColorSpan;
private SpannableString mSpannableString;
private TypedValue mTypedValue = new TypedValue();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mSmoothInterpolator = new AccelerateDecelerateInterpolator();
mHeaderHeight = getResources().getDimensionPixelSize(R.dimen.header_height);
mMinHeaderTranslation = -mHeaderHeight + getActionBarHeight();
setContentView(R.layout.activity_noboringactionbar);
mListView = (ListView) findViewById(R.id.listview);
mHeader = findViewById(R.id.header);
mHeaderPicture = (KenBurnsView) findViewById(R.id.header_picture);
//mHeaderPicture.setResourceIds(R.drawable.picture0, R.drawable.picture1);
mHeaderLogo = (ImageView) findViewById(R.id.header_logo);
mActionBarTitleColor = getResources().getColor(R.color.actionbar_title_color);
mSpannableString = new SpannableString(getString(R.string.noboringactionbar_title));
mAlphaForegroundColorSpan = new AlphaForegroundColorSpan(mActionBarTitleColor);
setupActionBar();
setupListView();
setupLogo(mHeaderLogo);
// Lastly, set up the custom views
ImageView[] imageView = setupKenBurnsView(mHeaderPicture);
mHeaderPicture.setImageView(imageView);
mHeaderPicture.setResourceIds(getDrawableResources());
}
private void setupListView() {
/*
ArrayList<String> FAKES = new ArrayList<String>();
for (int i = 0; i < 1000; i++) {
FAKES.add("entry " + i);
}
*/
List<AboutLines> listOfAboutLines = getAboutLines();
AboutLines empty = new AboutLines();
empty.row1 = "";
empty.row2 = "";
listOfAboutLines.add(empty);
mPlaceHolderView = getLayoutInflater().inflate(R.layout.view_header_placeholder, mListView, false);
mListView.addHeaderView(mPlaceHolderView);
mListView.setDivider(null);
mListView.setDividerHeight(0);
//mListView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, FAKES));
mListView.setAdapter(new AboutAdapter(this, R.layout.list_item_aboutlines, listOfAboutLines));
mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
int scrollY = getScrollY();
//sticky actionbar
mHeader.setTranslationY(Math.max(-scrollY, mMinHeaderTranslation));
//header_logo --> actionbar icon
float ratio = clamp(mHeader.getTranslationY() / mMinHeaderTranslation, 0.0f, 1.0f);
interpolate(mHeaderLogo, getActionBarIconView(), mSmoothInterpolator.getInterpolation(ratio));
//actionbar title alpha
//getActionBarTitleView().setAlpha(clamp(5.0F * ratio - 4.0F, 0.0F, 1.0F));
//---------------------------------
//better way thanks to @cyrilmottier
setTitleAlpha(clamp(5.0F * ratio - 4.0F, 0.0F, 1.0F));
}
});
}
private void setTitleAlpha(float alpha) {
mAlphaForegroundColorSpan.setAlpha(alpha);
mSpannableString.setSpan(mAlphaForegroundColorSpan, 0, mSpannableString.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
getActionBar().setTitle(mSpannableString);
}
public static float clamp(float value, float max, float min) {
return Math.max(Math.min(value, min), max);
}
private void interpolate(View view1, View view2, float interpolation) {
getOnScreenRect(mRect1, view1);
getOnScreenRect(mRect2, view2);
float scaleX = 1.0F + interpolation * (mRect2.width() / mRect1.width() - 1.0F);
float scaleY = 1.0F + interpolation * (mRect2.height() / mRect1.height() - 1.0F);
float translationX = 0.5F * (interpolation * (mRect2.left + mRect2.right - mRect1.left - mRect1.right));
float translationY = 0.5F * (interpolation * (mRect2.top + mRect2.bottom - mRect1.top - mRect1.bottom));
view1.setTranslationX(translationX);
view1.setTranslationY(translationY - mHeader.getTranslationY());
view1.setScaleX(scaleX);
view1.setScaleY(scaleY);
}
private RectF getOnScreenRect(RectF rect, View view) {
rect.set(view.getLeft(), view.getTop(), view.getRight(), view.getBottom());
return rect;
}
public int getScrollY() {
View c = mListView.getChildAt(0);
if (c == null) {
return 0;
}
int firstVisiblePosition = mListView.getFirstVisiblePosition();
int top = c.getTop();
int headerHeight = 0;
if (firstVisiblePosition >= 1) {
headerHeight = mPlaceHolderView.getHeight();
}
return -top + firstVisiblePosition * c.getHeight() + headerHeight;
}
private void setupActionBar() {
ActionBar actionBar = getActionBar();
actionBar.setIcon(R.drawable.ic_transparent);
actionBar.setDisplayHomeAsUpEnabled(true);
//getActionBarTitleView().setAlpha(0f);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
// This ID represents the Home or Up button. In the case of this
// activity, the Up button is shown. Use NavUtils to allow users
// to navigate up one level in the application structure. For
// more details, see the Navigation pattern on Android Design:
//
// http://developer.android.com/design/patterns/navigation.html#up-vs-back
//
// TODO: If Settings has multiple levels, Up should navigate up
// that hierarchy.
NavUtils.navigateUpFromSameTask(this);
return true;
}
return super.onOptionsItemSelected(item);
}
private ImageView getActionBarIconView() {
return (ImageView) findViewById(android.R.id.home);
}
/*
private TextView getActionBarTitleView() {
int id = Resources.getSystem().getIdentifier("action_bar_title", "id", "android");
return (TextView) findViewById(id);
}
*/
public int getActionBarHeight() {
if (mActionBarHeight != 0) {
return mActionBarHeight;
}
getTheme().resolveAttribute(android.R.attr.actionBarSize, mTypedValue, true);
mActionBarHeight = TypedValue.complexToDimensionPixelSize(mTypedValue.data, getResources().getDisplayMetrics());
return mActionBarHeight;
}
protected abstract List<AboutLines> getAboutLines();
protected abstract ImageView[] setupKenBurnsView(KenBurnsView mHeaderPicture);
protected abstract int[] getDrawableResources();
protected abstract void setupLogo(ImageView logo);
/*
public List<AboutLines> getAboutLines() {
ArrayList<AboutLines> FAKES = new ArrayList<AboutLines>();
AboutLines a = new AboutLines();
a.row1 = "Version";
a.row2 = "1.4.2";
FAKES.add(a);
a = new AboutLines();
a.row1 = "By";
a.row2 = "slide.se";
FAKES.add(a);
a = new AboutLines();
a.row1 = "Note";
a.row2 = "I wrote this app when I had my baby boy in early 2013 and wanted a way to keep track of when to feed him :)";
FAKES.add(a);
a = new AboutLines();
a.row1 = "";
a.row2 = "";
FAKES.add(a);
a = new AboutLines();
a.row1 = "android-HoloCircle";
a.row2 = "http://www.dn.se";
FAKES.add(a);
a = new AboutLines();
a.row1 = "NotBoringActionBar";
a.row2 = "https://github.com/flavienlaurent/NotBoringActionBar";
FAKES.add(a);
a = new AboutLines();
a.row1 = "NotBar";
a.row2 = "https://github.com/flavienlaurent/NotBoringActionBar";
FAKES.add(a);
a = new AboutLines();
a.row1 = "Yeahjo";
a.row2 = "https://github.com/flavienlaurent/Ydhsjk";
FAKES.add(a);
return FAKES;
}
private ImageView[] setupKenBurnsView() {
View view = View.inflate(this, R.layout.view_kenburns, mHeaderPicture);
ImageView[] mImageViews = new ImageView[2];
mImageViews[0] = (ImageView) view.findViewById(R.id.image0);
mImageViews[1] = (ImageView) view.findViewById(R.id.image1);
return mImageViews;
}
public int[] getDrawableResources() {
//return new int[] { R.drawable.picture0, R.drawable.picture1 };
return new int[] { R.drawable.black_wood, R.drawable.black_wood };
}
public void setupLogo(ImageView logo) {
logo.setImageResource(R.drawable.ic_launcher_nodpi);
}
*/
}