【Android】获取手机中已安装apk文件信息(PackageInfo、ResolveInfo)(应用图片、应用 ...

众所周知，通过PackageManager可以获取手机端已安装的apk文件的信息，具体代码如下：

                    PackageManagerpackageManager=this.getPackageManager();
            List<PackageInfo>packageInfoList=packageManager.getInstalledPackages(0);

                    /**
            *查询手机内非系统应用
            *@paramcontext
            *@return
            */
            publicstaticList<PackageInfo>getAllApps(Contextcontext){
            List<PackageInfo>apps=newArrayList<PackageInfo>();
            PackageManagerpManager=context.getPackageManager();
            //获取手机内所有应用
            List<PackageInfo>paklist=pManager.getInstalledPackages(0);
            for(inti=0;i<paklist.size();i++){
            PackageInfopak=(PackageInfo)paklist.get(i);
            //判断是否为非系统预装的应用程序
            if((pak.applicationInfo.flags&pak.applicationInfo.FLAG_SYSTEM)<=0){
            //customsapplications
            apps.add(pak);
            }
            }
            returnapps;
            }
            获取图片、应用名、包名:
            PackageManagerpManager=MessageSendActivity.this.getPackageManager();
            List<PackageInfo>appList=Utils.getAllApps(MessageSendActivity.this);
            for(inti=0;i<appList.size();i++){
            PackageInfopinfo=appList.get(i);
            ShareItemInfoshareItem=newShareItemInfo();
            //setIcon
            shareItem.setIcon(pManager.getApplicationIcon(pinfo.applicationInfo));
            //setApplicationName
            shareItem.setLabel(pManager.getApplicationLabel(pinfo.applicationInfo).toString());
            //setPackageName
            shareItem.setPackageName(pinfo.applicationInfo.packageName);
            }

获取支持分享的应用的代码：

                    /**
            *查询手机内所有支持分享的应用
            *@paramcontext
            *@return
            */
            publicstaticList<ResolveInfo>getShareApps(Contextcontext){
            List<ResolveInfo>mApps=newArrayList<ResolveInfo>();
            Intentintent=newIntent(Intent.ACTION_SEND,null);
            intent.addCategory(Intent.CATEGORY_DEFAULT);
            intent.setType("text/plain");
            PackageManagerpManager=context.getPackageManager();
            mApps=pManager.queryIntentActivities(intent,PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);
            returnmApps;
            }
            //由于该方法，返回的并不是PackageInfo对象。而是ResolveInfo。因此获取图片、应用名、包名的方法不一样，如下：
            PackageManagerpManager=MessageSendActivity.this.getPackageManager();
            /*********************查询手机内所有支持分享的应用*********************/
            List<ResolveInfo>resolveList=Utils.getShareApps(MessageSendActivity.this);
            for(inti=0;i<resolveList.size();i++){
            ResolveInforesolve=resolveList.get(i);
            ShareItemInfoshareItem=newShareItemInfo();
            //setIcon
            shareItem.setIcon(resolve.loadIcon(pManager));
            //setApplicationName
            shareItem.setLabel(resolve.loadLabel(pManager).toString());
            //setPackageName
            shareItem.setPackageName(resolve.activityInfo.packageName);
            }

总结：
通过 PackageInfo 获取具体信息方法：
包名获取方法：packageInfo.packageName
icon获取获取方法：packageManager.getApplicationIcon(applicationInfo)
应用名称获取方法：packageManager.getApplicationLabel(applicationInfo)
使用权限获取方法：packageManager.getPackageInfo(packageName,PackageManager.GET_PERMISSIONS)
.requestedPermissions
通过 ResolveInfo 获取具体信息方法：
包名获取方法：resolve.activityInfo.packageName
icon获取获取方法：resolve.loadIcon(packageManager)
应用名称获取方法：resolve.loadLabel(packageManager).toString()

更多相关文章

随机推荐