varonsuccess=onfail=function(){};functionsendMessage(){//發(fā)送短信varintent={action:"android.intent.action.SENDTO",uri:"smsto:18511193390",};Blend.device.activity.start({onsuccess:onsuccess,onfail:onfail,intent:intent});}functionplayVideo(){//播放視頻varintent={action:"android.intent.action.VIEW",uri:"http://bcs.duapp.com/Baidu.mp4",type:"video/*"};Blend.device.activity.start({onsuccess:onsuccess,onfail:onfail,intent:intent});}我想安裝本地的一個APK文件，intent部分應(yīng)該怎么寫？代碼格式如上這是我能取到的APK的路徑：sdcard/baidu/hybrid/offlinestorage/192.168.23.1/mycache.apk希望大家能幫幫忙，謝謝