Android(安卓)实现多图分享到微信朋友圈

1.初始的步骤可以先参考：
Android 实现微信分享好友和朋友圈
http://blog.csdn.net/unique_even/article/details/71717368

2.刚开始我采用微信开放平台给出的接口来分享图片，但是只能分享一张，之后各种搜索，找到了新的思路（可以参考下：http://blog.csdn.net/qq_27030835/article/details/50828352），是先把图片缓存下来，之后在去分享。

1.ShareActivity 类

public class ShareActivity  extends Activity{    private Button mButtonGetValue; // 获取数据按钮    private GridView mListView;// 数据展示列表    private CheckboxAdapter listItemAdapter; // ListView数据展示适配器    private ArrayList> listData;// ListView展示数据源    private WeChatShareUtil weChatShareUtil;    Context context;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.z_shareactivity);        context = this;        initView();        registerListener();        listData = new ArrayList>();        initListViewData(listData);        loadData();        weChatShareUtil = WeChatShareUtil.getInstance(this);    }    /**     * 初始化布局     */    private void initView() {        mButtonGetValue = (Button) findViewById(R.id.get_value);        mListView = (GridView) findViewById(R.id.list);    }    private void registerListener() {        mButtonGetValue.setOnClickListener((View.OnClickListener) new OnClickListenerImpl());    }    /**     * 加载数据     */    private void loadData() {        listItemAdapter = new CheckboxAdapter(this, listData);        mListView.setAdapter(listItemAdapter);    }    /**     * 初始化ListView数据源     *     * @param listData     */    private void initListViewData(ArrayList> listData) {        if (listData == null)            listData = new ArrayList>();        for (int i = 0; i < 12; i++) {            HashMap map = new HashMap();            map.put("friend_image", "http://imgsrc.baidu.com/imgad/pic/item/b58f8c5494eef01f4b2237c5eafe9925bc317dff.jpg");            map.put("selected", false);            // 向容器添加数据            listData.add(map);        }    }    private class OnClickListenerImpl implements View.OnClickListener {        @Override        public void onClick(View v) {            new Thread(saveFileRunnable).start();        }    }    private Runnable saveFileRunnable = new Runnable(){        @Override        public void run() {            try {                List >sList = new ArrayList>();                HashMap  s = new HashMap();                    int IMAGE_NAME = 0;                for(int i=0;i".jpg";                    s = listItemAdapter.getState().get(listItemAdapter.getNumdata().get(i).get("position"));                    SavePhoto.downloadLyWithName((String)s.get("friend_image"),imageFileName, "phone", context);                }                // 遍历 SD 卡下 .png 文件通过微信分享                File file = new File(Environment.getExternalStorageDirectory() + "/BangMai/images/" + "phone");                File[] files = file.listFiles(new FileFilter() {                    @Override                    public boolean accept(File pathname) {                        if (pathname.getName().endsWith(".jpg")) {                            return true;                        }                        return false;                    }                });                Intent intent = new Intent();                ComponentName comp = new ComponentName("com.tencent.mm", "com.tencent.mm.ui.tools.ShareToTimeLineUI");                intent.setComponent(comp);                intent.setAction(Intent.ACTION_SEND_MULTIPLE);                intent.setType("image/*");                ArrayList imageUris = new ArrayList();                for (File f : files) {                    imageUris.add(Uri.fromFile(f));                }                intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, imageUris);                intent.putExtra("Kdescription", "测试");  // 这里可要可不要，这句话的意思是直接会显示在发表时候的文字                startActivity(intent);            } catch (Exception e) {                e.printStackTrace();            }        }    };}

CheckboxAdapter 类

public class CheckboxAdapter extends BaseAdapter{    private Context context;    private ArrayList> listData;    public ArrayList> getNumdata() {        return numdata;    }    public void setNumdata(ArrayList> numdata) {        this.numdata = numdata;    }    ArrayList> numdata = new ArrayList<>();    HashMap  num = new HashMap();    public HashMap> getState() {        return state;    }//    public void setState(HashMap> state) {        this.state = state;    }    //checkbox选中的数据    HashMap> state = new HashMap>();    // 构造方法初始化数据    public CheckboxAdapter(Context context, ArrayList> listData) {        this.context = context;        this.listData = listData;    }    @Override    public int getCount() {        return (listData != null && !listData.isEmpty())?listData.size():0;    }    @Override    public Object getItem(int position) {        return listData.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(final int position, View convertView, ViewGroup parent) {        LayoutInflater mInflater = LayoutInflater.from(context);        convertView = mInflater.inflate(R.layout.z_item_list, null);        ImageView image = (ImageView) convertView.findViewById(R.id.friend_image);        final HashMap viewData = listData.get(position);        ImageLoaders.display(context, image, (String) viewData.get("friend_image"), R.drawable.add_nor);        CheckBox check = (CheckBox) convertView.findViewById(R.id.selected);        check.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {                if (isChecked) {                    state.put(position, viewData);                    num.put("position",position);                    numdata.add(num);                } else {                    state.remove(position);                    num.remove(position);                }            }        });        check.setChecked((state.get(position) == null ? false : true));        return convertView;    }}

SavePhoto类（保存图片的）

public class SavePhoto {    //保存带名称的图片    public static Boolean downloadLyWithName(String url, String imgName, String fileName, Context context) throws Exception {        Bitmap bitmap = null;        byte [] data = getImage(url);        if(data!=null){            bitmap = BitmapFactory.decodeByteArray(data,0,data.length);            saveImgWithName(bitmap,imgName,fileName,context);            return true;        }else {            return  false;        }    }    public static byte[] getImage(String path) throws Exception {        URL url = new URL(path);        HttpURLConnection conn = (HttpURLConnection) url.openConnection();        conn.setConnectTimeout(5*1000);        conn.setRequestMethod("GET");        InputStream inStream = conn.getInputStream();        if(conn.getResponseCode()==HttpURLConnection.HTTP_OK){            return readStream(inStream);        }            return null;    }    public static byte[] readStream(InputStream inStream) throws Exception{        ByteArrayOutputStream outStream = new ByteArrayOutputStream();        byte[] buffer = new byte[1024];        int len = 0;        while( (len=inStream.read(buffer)) != -1){            outStream.write(buffer, 0, len);        }        outStream.close();        inStream.close();        return outStream.toByteArray();    }    //保存图片带名称    private static void saveImgWithName(Bitmap bitmap, String imgName, String fileName, Context context) {        if (bitmap != null) {            File appDir = new File(Environment.getExternalStorageDirectory() + "/BangMai/");            if (!appDir.exists()) {                appDir.mkdirs();            }            if (fileName != null) {                appDir = new File(Environment.getExternalStorageDirectory() + "/BangMai/images/" + fileName);                if (!appDir.exists()) {                    appDir.mkdirs();                }            }            File file = null;            file = new File(appDir, imgName);            try {                FileOutputStream fos = new FileOutputStream(file);                if (null != fos) {                    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);                    fos.flush();                    fos.close();                }            } catch (FileNotFoundException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }        }    }}

z_item_list 布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/RelativeLayout"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:paddingBottom="4dip"    android:paddingRight="12dip" >    <ImageView        android:id="@+id/friend_image"        android:layout_width="100dp"        android:layout_height="100dp"        android:layout_alignParentLeft="true"        android:layout_centerVertical="true"        android:paddingLeft="2dip"        android:paddingTop="6dip" />    <CheckBox        android:id="@+id/selected"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:layout_centerVertical="true"        android:layout_marginLeft="36dip"        android:focusable="false" />RelativeLayout>

z_shareactivity 布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <Button        android:id="@+id/get_value"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:text="微信分享" />    <GridView        android:id="@+id/list"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:numColumns="3"        />LinearLayout>

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