Android使用scrollview截取整个的屏幕并分享微信

先看看截图效果图

截取scrollview的屏幕

 1     /**
 2      * 截取scrollview的屏幕
 3      **/
 4     public static Bitmap getScrollViewBitmap(ScrollView scrollView) {
 5         int h = 0;
 6         Bitmap bitmap;
 7         for (int i = 0; i < scrollView.getChildCount(); i++) {
 8             h += scrollView.getChildAt(i).getHeight();
 9         }
10         // 创建对应大小的bitmap
11         bitmap = Bitmap.createBitmap(scrollView.getWidth(), h,
12                 Bitmap.Config.RGB_565);
13         final Canvas canvas = new Canvas(bitmap);
14         scrollView.draw(canvas);
15         return bitmap;
16     }

压缩图片

 1     /**
 2      * 压缩图片
 3      * @param image
 4      * @return
 5      */
 6     public static Bitmap compressImage(Bitmap image, int quality) {
 7         ByteArrayOutputStream baos = new ByteArrayOutputStream();
 8         // 质量压缩方法，这里100表示不压缩，把压缩后的数据存放到baos中
 9         image.compress(Bitmap.CompressFormat.JPEG, quality, baos);
10         int options = 100;
11         // 循环判断如果压缩后图片是否大于100kb,大于继续压缩
12 //        while (baos.toByteArray().length / 1024 > 30) {
13             // 重置baos
14             baos.reset();
15             // 这里压缩options%，把压缩后的数据存放到baos中
16            image.compress(Bitmap.CompressFormat.JPEG, quality, baos);
17             // 每次都减少10
18 //            options -= 10;
19 //        }
20         // 把压缩后的数据baos存放到ByteArrayInputStream中
21         ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());
22         // 把ByteArrayInputStream数据生成图片
23         return BitmapFactory.decodeStream(isBm, null, null);
24     }

点击按钮弹窗分享dialog提示窗

 1     //----点分享朋友弹出PopupWindow
 2     private void showPopupWindow() {
 3         View contentView = LayoutInflater.from(GroupBulkActivity.this).inflate(R.layout.popupdow_share, null, false);
 4         window = new PopupWindow(contentView, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT, true);
 5         window.setOutsideTouchable(true);
 6         window.setOnDismissListener(new PopupWindow.OnDismissListener() {
 7             @Override
 8             public void onDismiss() {
 9                 backgroundAlpha(GroupBulkActivity.this, 1.0f);
10             }
11         });
12         backgroundAlpha(GroupBulkActivity.this, 0.5f);//0.0-1.0
13         iv_wx = contentView.findViewById(R.id.iv_image1);
14         iv_fiend = contentView.findViewById(R.id.iv_image2);
15         im_delt = contentView.findViewById(R.id.im_delt);
16         rl_delt = contentView.findViewById(R.id.rl_delt);
17 
18         window.showAtLocation(LayoutInflater.from(GroupBulkActivity.this).inflate(R.layout.activity_group_bulk, null), Gravity.BOTTOM, 0, 0);
19 
20         iv_wx.setOnClickListener(new View.OnClickListener() {
21             @Override
22             public void onClick(View v) {
23                wechatShare(0);
24                 window.dismiss();
25                 backgroundAlpha(GroupBulkActivity.this, 1f);
26             }
27         });
28         iv_fiend.setOnClickListener(new View.OnClickListener() {
29             @Override
30             public void onClick(View v) {
31                 wechatShare(1);
32                 window.dismiss();
33                 backgroundAlpha(GroupBulkActivity.this, 1f);
34             }
35         });
36         rl_delt.setOnClickListener(new View.OnClickListener() {
37             @Override
38             public void onClick(View v) {
39                 window.dismiss();
40                 backgroundAlpha(GroupBulkActivity.this, 1f);
41             }
42         });
43     }

dailog布局

  1 <?xml version="1.0" encoding="utf-8"?>
  2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  3                 android:id="@+id/parent"
  4                 android:layout_width="match_parent"
  5                 android:layout_height="match_parent">
  6 
  7 
  8     <LinearLayout
  9         android:id="@+id/ll_share"
 10         android:layout_width="match_parent"
 11         android:layout_height="183dp"
 12         android:background="#FFFFFF"
 13         android:orientation="vertical">
 14 
 15         <TextView
 16             android:layout_width="match_parent"
 17             android:layout_height="1px"
 18             android:background="#e4e4e4"/>
 19 
 20         <RelativeLayout
 21             android:layout_width="match_parent"
 22             android:layout_height="45dp">
 23 
 24             <TextView
 25                 android:id="@+id/item_popupwindows_Photo"
 26                 android:layout_width="match_parent"
 27                 android:layout_height="55dp"
 28                 android:background="@drawable/bt_nobgd"
 29                 android:gravity="center"
 30                 android:text="分享给好友"
 31                 android:textColor="#585858"
 32                 android:textSize="14sp"/>
 33 
 34             <RelativeLayout
 35                 android:id="@+id/rl_delt"
 36                 android:layout_width="wrap_content"
 37               android:layout_marginLeft="320dp"
 38                 android:layout_height="55dp">
 39                 <ImageView
 40                     android:id="@+id/im_delt"
 41                     android:layout_width="14dp"
 42                     android:layout_height="14dp"
 43                     android:layout_alignParentRight="true"
 44                     android:layout_marginRight="21dp"
 45                     android:layout_marginTop="14dp"
 46                     android:gravity="center"
 47                     android:src="@drawable/down"
 48                     android:textColor="#585858"
 49                     android:textSize="12sp"/>
 50             </RelativeLayout>
 51 
 52 
 53         </RelativeLayout>
 54 
 55         <TextView
 56             android:layout_width="match_parent"
 57             android:layout_height="1px"
 58             android:background="#9e8888"/>
 59 
 60 
 61         <LinearLayout
 62             android:layout_width="match_parent"
 63             android:layout_height="match_parent"
 64             android:clipChildren="false"
 65             >
 66 
 67 
 68             <LinearLayout
 69                 android:layout_width="0dp"
 70                 android:layout_height="wrap_content"
 71                 android:layout_marginTop="40dp"
 72                 android:layout_weight="1"
 73                 android:gravity="center"
 74                 android:orientation="vertical">
 75 
 76                 <ImageView
 77                     android:id="@+id/iv_image1"
 78                     android:layout_width="50dp"
 79                     android:layout_height="50dp"
 80                     android:src="@drawable/weixin"/>
 81 
 82                 <TextView
 83                     android:layout_width="wrap_content"
 84                     android:layout_height="wrap_content"
 85                     android:textColor="#333333"
 86                     android:textSize="13sp"
 87                     android:layout_marginTop="5dp"
 88                     android:text="微信"/>
 89 
 90 
 91             </LinearLayout>
 92 
 93             <LinearLayout
 94                 android:layout_width="0dp"
 95                 android:layout_height="wrap_content"
 96 
 97                 android:layout_weight="1"
 98                 android:gravity="center"
 99                 android:orientation="vertical">
100 
101                 <ImageView
102 
103                     android:id="@+id/iv_image2"
104                     android:layout_width="50dp"
105                     android:layout_height="50dp"
106                     android:layout_marginTop="40dp"
107                     android:src="@drawable/pengyou"/>
108 
109                 <TextView
110                     android:layout_width="wrap_content"
111                     android:layout_height="wrap_content"
112                     android:textColor="#333333"
113                     android:textSize="13sp"
114                     android:layout_marginTop="5dp"
115                     android:text="朋友圈"/>
116             </LinearLayout>
117         </LinearLayout>
118     </LinearLayout>
119 </RelativeLayout>

分享图片到微信或盆友圈

 1     private void wechatShare(int flag) {
 2         String baseUrl = Cache.exist(CacheKey.BASE_URL) ? Cache.get(CacheKey.BASE_URL).toString() : URL.BASE_URL;
 3         // 分享图片
 4         Bitmap mBitmap = getScrollViewBitmap(scrollView);
 5 //        Bitmap mBitmap = CodeUtils.createImage(data.getCodeUrl(), 200, 200, BitmapFactory.decodeResource(getResources(), R.drawable.logo));
 6         //初始化WXImageObject和WXMediaMessage对象
 7         WXImageObject imageObject = new WXImageObject(compressImage(mBitmap, 80));
 8         WXMediaMessage msg = new WXMediaMessage();
 9         msg.mediaObject = imageObject;
10 //        mBitmap = getScrollViewBitmap(scrollView);
11         msg.setThumbImage(Bitmap.createScaledBitmap(mBitmap, 200, 200, true));
12 
13         mBitmap.recycle();
14         //构造一个Req
15         SendMessageToWX.Req req = new SendMessageToWX.Req();
16         req.transaction = String.valueOf(System.currentTimeMillis());
17         req.message = msg;
18         req.scene = flag == 0 ? SendMessageToWX.Req.WXSceneSession : SendMessageToWX.Req.WXSceneTimeline;
19         MyApp.api.sendReq(req);
20 
21     }

最终实现效果如图所示........