Android系统自带分享图片功能

2023-09-13 17:11:07 163

/** *系统分享图片功能 *Createdbywikyon2018/1/13. */ objectUtil{ funstartShareImage(activity:Activity){ //过滤出需要分享到对应的平台：微信好友、朋友圈、QQ好友。可自行修改 valtargetApp=arrayOf("com.tencent.mm.ui.tools.ShareImgUI","com.tencent.mm.ui.tools.ShareToTimeLineUI","com.tencent.mobileqq.activity.JumpActivity") /***分享图片*/ valbitmap=getImageFromAssetsFile(activity,"img_share.jpg")//从assets目录中取到对应的文件，文件名自行修改 vallocalImage=saveBitmap(bitmap!!,"share.jpg")//分享前，需要先将图片存在本地（记得添加权限），文件名自行修改 valshareIntent=Intent(Intent.ACTION_SEND) shareIntent.type="image/*"//设置分享内容的类型：图片 shareIntent.putExtra(Intent.EXTRA_STREAM,localImage) try{ valresInfo=activity.packageManager.queryIntentActivities(shareIntent,0) if(!resInfo.isEmpty()){ valtargetedShareIntents=ArrayList() for(infoinresInfo){ valtargeted=Intent(Intent.ACTION_SEND) targeted.type="image/*"//设置分享内容的类型 valactivityInfo=info.activityInfo //如果还需要分享至其它平台，可以打印出具体信息，然后找到对应的Activity名称，填入上面的数组中即可 //println("package=${activityInfo.packageName},activity=${activityInfo.name}") //进行过滤（只显示需要分享的平台） if(targetApp.any{it==activityInfo.name}){ valcomp=ComponentName(activityInfo.packageName,activityInfo.name) targeted.component=comp targeted.putExtra(Intent.EXTRA_STREAM,localImage) targetedShareIntents.add(targeted) } } valchooserIntent=Intent.createChooser(targetedShareIntents.removeAt(0),"选择要分享到的平台") if(chooserIntent!=null){ chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS,targetedShareIntents.toTypedArray()) activity.startActivity(chooserIntent) } } }catch(e:Exception){ Log.e(StatConstants.LOG_TAG,"Unabletoshareimage,logs:"+e.toString()) } } /***从Assets中读取图片*/ privatefungetImageFromAssetsFile(context:Context,fileName:String):Bitmap?{ varimage:Bitmap?=null valam=context.resources.assets try{ valinputStream=am.open(fileName) image=BitmapFactory.decodeStream(inputStream) inputStream.close() }catch(e:IOException){ e.printStackTrace() } returnimage } /***将图片存到本地*/ privatefunsaveBitmap(bm:Bitmap,picName:String):Uri?{ try{ valdir=Environment.getExternalStorageDirectory().absolutePath+File.separator+picName valf=File(dir) if(!f.exists()){ f.parentFile.mkdirs() f.createNewFile() } valout=FileOutputStream(f) bm.compress(Bitmap.CompressFormat.JPEG,90,out) out.flush() out.close() returnUri.fromFile(f) }catch(e:FileNotFoundException){ e.printStackTrace() }catch(e:IOException){ e.printStackTrace() } returnnull } }

Android系统自带分享图片功能

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