GirlFragment.java

package coder.prettygirls.girl;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.os.Parcelable;
import android.support.design.widget.Snackbar;
import android.support.v4.view.ViewPager;
import android.support.v7.graphics.Palette;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;

import java.io.File;
import java.util.ArrayList;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;
import coder.mylibrary.base.BaseFragment;
import coder.prettygirls.R;
import coder.prettygirls.app.Constants;
import coder.prettygirls.data.bean.GirlsBean;
import coder.prettygirls.util.BitmapUtil;
import coder.prettygirls.widget.PinchImageView;
import rx.Observable;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action1;
import rx.schedulers.Schedulers;

/**
 * Created by oracleen on 2016/7/4.
 */
public class GirlFragment extends BaseFragment implements ViewPager.OnPageChangeListener {

    @BindView(R.id.view_pager)
    ViewPager mViewPager;
    @BindView(R.id.rootView)
    LinearLayout mRootView;
    private GirlAdapter mAdapter;

    private ArrayList<GirlsBean.ResultsEntity> datas;
    private int current;

    private Unbinder unbinder;

    private OnGirlChange mListener;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = super.onCreateView(inflater, container, savedInstanceState);
        ButterKnife.bind(this, rootView);
        return rootView;
    }

    public interface OnGirlChange {
        void change(int color);
    }

    public static GirlFragment newInstance(ArrayList<Parcelable> datas, int current) {
        Bundle bundle = new Bundle();
        GirlFragment fragment = new GirlFragment();
        bundle.putParcelableArrayList("girls", datas);
        bundle.putInt("current", current);
        fragment.setArguments(bundle);
        return fragment;
    }

    @Override
    protected int getLayoutId() {
        return R.layout.fragment_girl;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        // This makes sure that the container activity has implemented
        // the callback interface. If not, it throws an exception
        try {
            mListener = (OnGirlChange) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement OnHeadlineSelectedListener");
        }
    }

    @Override
    protected void initView(View view, Bundle savedInstanceState) {
        unbinder = ButterKnife.bind(this, view);

        Bundle bundle = getArguments();
        if (bundle != null) {
            datas = bundle.getParcelableArrayList("girls");
            current = bundle.getInt("current");
        }

        mAdapter = new GirlAdapter(mActivity, datas);
        mViewPager.setAdapter(mAdapter);
        mViewPager.setCurrentItem(current);
        mViewPager.setOnPageChangeListener(this);
    }

    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

    }

    @Override
    public void onPageSelected(int position) {
        getColor();
    }

    @Override
    public void onPageScrollStateChanged(int state) {

    }

    /**
     * 根据图片获得主题色
     */
    private void getColor() {
        PinchImageView imageView = getCurrentImageView();
        Bitmap bitmap = BitmapUtil.drawableToBitmap(imageView.getDrawable());
        Palette.Builder builder = Palette.from(bitmap);
        builder.generate(new Palette.PaletteAsyncListener() {
            @Override
            public void onGenerated(Palette palette) {
//                Palette.Swatch vir = palette.getLightMutedSwatch();
                Palette.Swatch vir = palette.getVibrantSwatch();
                if (vir == null)
                    return;
                mListener.change(vir.getRgb());
            }
        });
    }

    public void saveGirl() {
        String imgUrl = datas.get(mViewPager.getCurrentItem()).getUrl();
        PinchImageView imageView = getCurrentImageView();
        Bitmap bitmap = BitmapUtil.drawableToBitmap(imageView.getDrawable());

        Observable.just(BitmapUtil.saveBitmap(bitmap, Constants.dir, imgUrl.substring(imgUrl.lastIndexOf("/") + 1, imgUrl.length()), true))
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Action1<Boolean>() {
                    @Override
                    public void call(Boolean isSuccess) {
                        if (isSuccess) {
                            Snackbar.make(mRootView, "大爷，下载好了呢~", Snackbar.LENGTH_LONG).show();
                        } else {
                            Snackbar.make(mRootView, "大爷，下载出错了哦~", Snackbar.LENGTH_LONG).show();
                        }
                    }
                });

//        boolean isSuccess = BitmapUtil.saveBitmap(bitmap, Constants.dir, imgUrl.substring(imgUrl.lastIndexOf("/") + 1, imgUrl.length()), true);
//        if (isSuccess) {
//            Snackbar.make(mRootView, "大爷，下载好了呢~", Snackbar.LENGTH_LONG).show();
//        } else {
//            Snackbar.make(mRootView, "大爷，下载出错了哦~", Snackbar.LENGTH_LONG).show();
//        }
    }

    public void shareGirl() {
        PinchImageView imageView = getCurrentImageView();
        Drawable drawable = imageView.getDrawable();
        if (drawable != null) {
            Bitmap bitmap = BitmapUtil.drawableToBitmap(drawable);

            Observable.just(BitmapUtil.saveBitmap(bitmap, Constants.dir, "share.jpg", false))
                    .subscribeOn(Schedulers.io())
                    .observeOn(AndroidSchedulers.mainThread())
                    .subscribe(new Action1<Boolean>() {
                        @Override
                        public void call(Boolean isSuccess) {
                            if (isSuccess) {
                                //由文件得到uri
                                Uri imageUri = Uri.fromFile(new File(Constants.dir + "/share.jpg"));
                                Intent shareIntent = new Intent();
                                shareIntent.setAction(Intent.ACTION_SEND);
                                shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri);
                                shareIntent.setType("image/*");
                                startActivity(Intent.createChooser(shareIntent, "分享MeiZhi到"));
                            } else {
                                Snackbar.make(mRootView, "大爷，分享出错了哦~", Snackbar.LENGTH_LONG).show();
                            }
                        }
                    });

//            boolean isSuccess = BitmapUtil.saveBitmap(bitmap, Constants.dir, "share.jpg", false);
//            if (isSuccess) {
//                //由文件得到uri
//                Uri imageUri = Uri.fromFile(new File(Constants.dir + "/share.jpg"));
//                Intent shareIntent = new Intent();
//                shareIntent.setAction(Intent.ACTION_SEND);
//                shareIntent.putExtra(Intent.EXTRA_STREAM, imageUri);
//                shareIntent.setType("image/*");
//                startActivity(Intent.createChooser(shareIntent, "分享MeiZhi到"));
//            } else {
//                Snackbar.make(mRootView, "大爷，分享出错了哦~", Snackbar.LENGTH_LONG).show();
//            }
        }
    }

    private PinchImageView getCurrentImageView() {
        View currentItem = mAdapter.getPrimaryItem();
        if (currentItem == null) {
            return null;
        }
        PinchImageView imageView = (PinchImageView) currentItem.findViewById(R.id.img);
        if (imageView == null) {
            return null;
        }
        return imageView;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        unbinder.unbind();
    }
}