点击查看大图Activity

1.使用方式

Intent intent = new Intent(FriendCircleActivity.this, ImageGralleryPagerActivity.class);
//0，索引，第几张图片

intent.putExtra(ImageGralleryPagerActivity.EXTRA_IMAGE_INDEX, 0);

 ArrayList<String> imgs = new ArrayList<String>();

 imgs.add(“图片URL”);

intent.putStringArrayListExtra("imgs", imgs);

startActivity(intent);

2.展示大图Activity

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.support.v4.app.Fragment;

import android.support.v4.app.FragmentManager;

import android.support.v4.app.FragmentStatePagerAdapter;

import android.support.v4.view.ViewPager;

import android.text.SpannableString;

import android.text.style.RelativeSizeSpan;

import android.view.View;

import android.view.ViewGroup;

import android.view.WindowManager;

import android.widget.TextView;

import com.jlm.happyselling.R;

import com.jlm.happyselling.base.ECSuperActivity;

import com.jlm.happyselling.helper.IMessageSqlManager;

import com.jlm.happyselling.model.ViewImageInfo;

import com.jlm.happyselling.util.ECUtils;

import com.jlm.happyselling.util.FileAccessor;

import com.jlm.happyselling.util.LogUtil;

import com.jlm.happyselling.util.ToastUtil;

import com.jlm.happyselling.widget.HackyViewPager;

import java.io.File;

import java.util.List;

public class ImageGralleryPagerActivity extends ECSuperActivity implements View.OnClickListener {

    private static final String TAG = "ImageGralleryPagerActivity";

    private static final String STATE_POSITION = "STATE_POSITION";

    public static final String EXTRA_IMAGE_INDEX = "image_index";

    public static final String EXTRA_IMAGE_URLS = "image_urls";

    public static final String EXTRA_IMAGE_URLS_ID = "image_urls_id";

    public static boolean isFireMsg = false;

    /**

     *

     */

    private boolean mFullscreen = true;

    private HackyViewPager mPager;

    private int pagerPosition;

    private TextView indicator;

    private List<ViewImageInfo> urls;

    private List<String> imgs;

    @Override

    protected int getLayoutId() {

        return R.layout.image_grallery_container;

    }

    @Override

    protected boolean isEnableSwipe() {

        // TODO Auto-generated method stub

        return false;

    }

    public static String sgId;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        getTopBarView().setTopBarToStatus(1, R.drawable.topbar_back_bt, -1, "1 / 1", this);

        if (!getIntent().hasExtra("imgs")) {

            ImageGalleryFragment.i = 0;

            pagerPosition = getIntent().getIntExtra(EXTRA_IMAGE_INDEX, 0);

            urls = getIntent().getParcelableArrayListExtra(EXTRA_IMAGE_URLS);

            sgId = getIntent().getStringExtra(EXTRA_IMAGE_URLS_ID);

            onChatImgLayout();

        } else {

            ImageGalleryFragment2.i = 0;

            pagerPosition = getIntent().getIntExtra(EXTRA_IMAGE_INDEX, 0);

            imgs = getIntent().getStringArrayListExtra("imgs");

            onImgLayout();

        }

        // 更新下标

        mPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {

            @Override

            public void onPageScrollStateChanged(int arg0) {

            }

            @Override

            public void onPageScrolled(int arg0, float arg1, int arg2) {

            }

            @Override

            public void onPageSelected(int arg0) {

                initIndicatorIndex(arg0);

            }

        });

        if (savedInstanceState != null) {

            pagerPosition = savedInstanceState.getInt(STATE_POSITION);

        }

        mPager.setCurrentItem(pagerPosition);

        initIndicatorIndex(pagerPosition);

        setTitleFooterVisible(true);

    }

    private void onImgLayout() {

        if (imgs == null || imgs.isEmpty()) {

            finish();

            return;

        }

        if (pagerPosition > imgs.size()) {

            pagerPosition = 0;

        }

        setActionBarTitle(pagerPosition + "/" + (imgs != null ? imgs.size() : 0));

        mPager = (HackyViewPager) findViewById(R.id.pager);

        final ImagePagerAdapter1 adapter1 = new ImagePagerAdapter1(getSupportFragmentManager(),imgs);

        mPager.setAdapter(adapter1);

        indicator = (TextView) findViewById(R.id.indicator);

    }

    private void onChatImgLayout() {

        if (urls == null || urls.isEmpty()) {

            finish();

            return;

        }

        if (pagerPosition > urls.size()) {

            pagerPosition = 0;

        }

        setActionBarTitle(pagerPosition + "/" + (urls != null ? urls.size() : 0));

        mPager = (HackyViewPager) findViewById(R.id.pager);

        final ImagePagerAdapter mAdapter = new ImagePagerAdapter(getSupportFragmentManager(), urls);

        mPager.setAdapter(mAdapter);

        indicator = (TextView) findViewById(R.id.indicator);

        findViewById(R.id.imagebrower_iv_save).setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                if (mAdapter != null) {

                    ViewImageInfo viewImageInfo = urls.get(mPager.getCurrentItem());

                    if (viewImageInfo == null || !viewImageInfo.isDownload()) {

                        ToastUtil.show(R.string.save_img_waite_download);

                        return;

                    }

                    try {

                        File file = new File(FileAccessor.getImagePathName(), viewImageInfo.getPicurl());

                        if (viewImageInfo != null && viewImageInfo.isGif()) {

                            ECUtils.saveImage(file.getAbsolutePath(), ".gif");

                            return;

                        }

                        ECUtils.saveImage(file.getAbsolutePath());

                    } catch (Exception e) {

                        LogUtil.e(TAG, "onContextItemSelected error ");

                    }

                }

            }

        });

        //待改 lu

        if (mAdapter != null) {

            ViewImageInfo viewImageInfoItem = urls.get(mPager.getCurrentItem());

            if (viewImageInfoItem != null && IMessageSqlManager.isFireMsg(viewImageInfoItem.getMsgLocalId())) {

                findViewById(R.id.imagebrower_iv_save).setVisibility(View.GONE);

            } else {

                findViewById(R.id.imagebrower_iv_save).setVisibility(View.GONE);

            }

        }

    }

    private void initIndicatorIndex(int arg0) {

        CharSequence text = getString(R.string.viewpager_indicator, arg0 + 1, mPager.getAdapter().getCount());

        SpannableString spannableString = new SpannableString(text);

        spannableString.setSpan(new RelativeSizeSpan(1.5F), 0, text.toString().indexOf("/"), SpannableString.SPAN_PRIORITY);

        indicator.setText(spannableString);

    }

    @Override

    public void onClick(View v) {

        mHandlerCallbck.sendEmptyMessageDelayed(1, 350L);

        switch (v.getId()) {

            case R.id.btn_left:

                hideSoftKeyboard();

                finish();

                break;

            default:

                break;

        }

    }

    @Override

    protected void onDestroy() {

        super.onDestroy();

        if (urls != null) {

            urls.clear();

            urls = null;

        }

        if (mHandlerCallbck != null) {

            mHandlerCallbck.removeCallbacksAndMessages(null);

        }

        mPager = null;

        isFireMsg = false;

        ImageGalleryFragment.i = 0;

        System.gc();

    }

    private final Handler mHandlerCallbck = new Handler() {

        @Override

        public void dispatchMessage(Message msg) {

            super.dispatchMessage(msg);

            mFullscreen = !mFullscreen;

            setTitleFooterVisible(mFullscreen);

        }

    };

    @Override

    public void onBaseContentViewAttach(View contentView) {

        View activityLayoutView = getActivityLayoutView();

        ((ViewGroup) activityLayoutView.getParent()).removeView(activityLayoutView);

        ((ViewGroup) getWindow().getDecorView()).addView(activityLayoutView, 1);

    }

    /**

     * @param request

     */

    private void requestStatusbars(boolean request) {

        if (request) {

            getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

            return;

        }

        LogUtil.d(getClass().getSimpleName(), "request custom title");

        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);

    }

    /**

     * Full screen, hidden actionBar

     *

     * @param visible

     */

    void setTitleFooterVisible(boolean visible) {

        if (visible) {

            requestStatusbars(false);

            showTitleView();

            return;

        }

        requestStatusbars(true);

        hideTitleView();

    }

    @Override

    public void onSaveInstanceState(Bundle outState) {

        outState.putInt(STATE_POSITION, mPager.getCurrentItem());

    }

    private class ImagePagerAdapter extends FragmentStatePagerAdapter {

        public List<ViewImageInfo> fileList;

        public ImagePagerAdapter(FragmentManager fm, List<ViewImageInfo> fileList) {

            super(fm);

            this.fileList = fileList;

        }

        @Override

        public int getCount() {

            return fileList == null ? 0 : fileList.size();

        }

        @Override

        public Fragment getItem(int position) {

            ViewImageInfo url = fileList.get(position);

            return ImageGalleryFragment.newInstance(url);

        }

    }

    private class ImagePagerAdapter1 extends FragmentStatePagerAdapter {

        public List<String> fileList;

        public ImagePagerAdapter1(FragmentManager fm, List<String> fileList) {

            super(fm);

            this.fileList = fileList;

        }

        @Override

        public int getCount() {

            return fileList == null ? 0 : fileList.size();

        }

        @Override

        public Fragment getItem(int position) {

            String url = fileList.get(position);

            return ImageGalleryFragment2.newInstance(url);

        }

    }

    @Override

    public boolean isEnableRightSlideGesture() {

        return false;

    }

}

3.布局文件

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:fitsSystemWindows="true"

    android:background="#ff171b19">

    <com.jlm.happyselling.widget.HackyViewPager

        android:id="@+id/pager"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:background="@android:color/black" />

    <RelativeLayout

        android:id="@+id/imagebrower_layout_pagelayout"

        android:background="#5e171b19"

        android:paddingLeft="15.0dip"

        android:paddingRight="15.0dip"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:minHeight="80.0dip"

        android:layout_alignParentBottom="true">

        <ImageView

            android:id="@+id/imagebrower_iv_save"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:visibility="visible"

            android:layout_alignParentLeft="true"

            android:layout_centerVertical="true" />

        <TextView

            android:textSize="18.0sp"

            android:textColor="#ffcdcdcd"

            android:id="@+id/indicator"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_alignParentRight="true"

            android:layout_centerVertical="true" />

    </RelativeLayout>

</RelativeLayout>