Android 實現多圖分享到微信朋友圈
阿新 • • 發佈：2019-02-11
1.ShareActivity 類
public class ShareActivity extends Activity{
private Button mButtonGetValue; // 獲取資料按鈕
private GridView mListView;// 資料展示列表
private CheckboxAdapter listItemAdapter; // ListView資料展示介面卡
private ArrayList<HashMap<String, Object>> listData;// ListView展示資料來源
private CheckboxAdapter 類
public class CheckboxAdapter extends BaseAdapter{
private Context context;
private ArrayList<HashMap<String, Object>> listData;
public ArrayList<HashMap<String, Object>> getNumdata() {
return numdata;
}
public void setNumdata(ArrayList<HashMap<String, Object>> numdata) {
this.numdata = numdata;
}
ArrayList<HashMap<String, Object>> numdata = new ArrayList<>();
HashMap<String, Object> num = new HashMap();
public HashMap<Integer, HashMap<String, Object>> getState() {
return state;
}
//
public void setState(HashMap<Integer, HashMap<String, Object>> state) {
this.state = state;
}
//checkbox選中的資料
HashMap<Integer, HashMap<String, Object>> state = new HashMap<Integer, HashMap<String, Object>>();
// 構造方法初始化資料
public CheckboxAdapter(Context context, ArrayList<HashMap<String, Object>> 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<String, Object> 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類（儲存圖片的）
public class SavePhoto {
//儲存帶名稱的圖片
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();
}
//儲存圖片帶名稱
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 佈局
<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 佈局
<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>