安卓5+sdk Widget集成，调用图片压缩组件时出错plus.zip.compressImage

plus.zip.compressImage({  
                                    src: e,  
                                    dst: '_doc/' + name,  
                                    overwrite: true,  
                                    quality: 50,  
                                    format:'jpg'  
                                }, function(zip) {  
                                    alert("运行到了2");  
                                    size += zip.size;  
                                    console.log("filesize:"+zip.size+",totalsize:"+size);  
                                    if (size > (10*1024*1024)) {  
                                        return mui.toast('文件超大,请重新选择~');  
                                    }  
                                    if (!self.parentNode.classList.contains('space')) { //已有图片  
                                        feedback.files.splice(index-1,1,{name:"images"+index,path:e});  
                                    } else { //加号  
                                        placeholder.classList.remove('space');  
                                        feedback.addFile(zip.target);  
                                        feedback.newPlaceholder();  
                                    }  
                                    up.classList.remove('image-up');  
                                    placeholder.style.backgroundImage = 'url(' + zip.target + ')';  
                                }, function(zipe) {  
                                    mui.toast('压缩失败！')  
                                });  

W/WebView: java.lang.Throwable: A WebView method was called on thread 'Thread-2455'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {66b7789} called on null, FYI main Looper is Looper (main, tid 1) {66b7789})
at android.webkit.WebView.checkThread(WebView.java:2292)
at android.webkit.WebView.getUrl(WebView.java:1374)
at io.dcloud.common.adapter.ui.AdaWebview.obtainFullUrl(AdaWebview.java:231)
at io.dcloud.feature.pdr.a$b.a(CompressImage.java:224)
at io.dcloud.feature.pdr.a$b.a(CompressImage.java:195)
at io.dcloud.feature.pdr.a.b(CompressImage.java:66)
at io.dcloud.feature.pdr.a$1.run(CompressImage.java:42)
at java.lang.Thread.run(Thread.java:818)
E/AndroidRuntime: FATAL EXCEPTION: Thread-2455
Process: com.android.leon.njgddpolling, PID: 9693
java.lang.RuntimeException: java.lang.Throwable: A WebView method was called on thread 'Thread-2455'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {66b7789} called on null, FYI main Looper is Looper (main, tid 1) {66b7789})
at android.webkit.WebView.checkThread(WebView.java:2302)
at android.webkit.WebView.getUrl(WebView.java:1374)
at io.dcloud.common.adapter.ui.AdaWebview.obtainFullUrl(AdaWebview.java:231)
at io.dcloud.feature.pdr.a$b.a(CompressImage.java:224)
at io.dcloud.feature.pdr.a$b.a(CompressImage.java:195)
at io.dcloud.feature.pdr.a.b(CompressImage.java:66)
at io.dcloud.feature.pdr.a$1.run(CompressImage.java:42)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.Throwable: A WebView method was called on thread 'Thread-2455'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {66b7789} called on null, FYI main Looper is Looper (main, tid 1) {66b7789})
at android.webkit.WebView.checkThread(WebView.java:2292)
at android.webkit.WebView.getUrl(WebView.java:1374) 
at io.dcloud.common.adapter.ui.AdaWebview.obtainFullUrl(AdaWebview.java:231) 
at io.dcloud.feature.pdr.a$b.a(CompressImage.java:224) 
at io.dcloud.feature.pdr.a$b.a(CompressImage.java:195) 
at io.dcloud.feature.pdr.a.b(CompressImage.java:66) 
at io.dcloud.feature.pdr.a$1.run(CompressImage.java:42) 
at java.lang.Thread.run(Thread.java:818) 
I/Process: Sending signal. PID: 9693 SIG: 9
Disconnected from the target VM, address: 'localhost:8602', transport: 'socket'