获取图片部分
function preloadAvatar() { console.log('preload avatar...'); //如果超过1.5秒没有加载成功，使用默认头像 setTimeout(() => { if (loadAvatarFail) { console.log("头像加载失败"); // createScene(); } }, 1500); let preloaded = 0; let count = 0; for (var i in friendData) { count++; let img = wx.createImage(); //处理没有头像的情况 if (friendData[i]['avatar'] == "") { friendData[i]['avatar'] = assets.avatar; preloaded++; }else { img.src = friendData[i]['avatar']; friendData[i]['avatar'] = img; } img.onload = ()=> { preloaded++; if (preloaded == count) { loadAvatarFail = false; console.log("头像加载完毕"); } } }} |
使用图片部分
context = sharedCanvas.getContext("2d"); context.globalCompositeOperation = "source-over";context.drawImage(assets.panel,(stageWidth - assets.panel.width) / 2,(stageHeight - assets.panel.height) / 2) context.drawImage(assets.content,(stageWidth - assets.content.width) / 2,((stageHeight - assets.content.height) / 2 ) - 20) |
模拟器的是可以跑 并且没有报错，但是真机显示第二真后 就没有图片了
[wxgl]invalid drawimage
微信开发工具 v1.02.1806120 直接演示（真机）不能显示，上传体验版本显示ok