阿权的书房

class PInfo {
    private String appname = "";
    private String pname = "";
    private String versionName = "";
    private int versionCode = 0;
    private Drawable icon;
    private void prettyPrint() {
        log(appname + "\t" + pname + "\t" + versionName + "\t" + versionCode + "\t");
    }
}

private void listPackages() {
    ArrayList<PInfo> apps = getInstalledApps(false); /* false = no system packages */
    final int max = apps.size();
    for (int i=0; i<max; i++) {
        apps.get(i).prettyPrint();
    }
}

private ArrayList<PInfo> getInstalledApps(boolean getSysPackages) {
    ArrayList<PInfo> res = new ArrayList<PInfo>();        
    List<PackageInfo> packs = getPackageManager().getInstalledPackages(0);
    for(int i=0;i<packs.size();i++) {
        PackageInfo p = packs.get(i);
        if ((!getSysPackages) && (p.versionName == null)) {
            continue ;
        }
        PInfo newInfo = new PInfo();
        newInfo.appname = p.applicationInfo.loadLabel(getPackageManager()).toString();
        newInfo.pname = p.packageName;
        newInfo.versionName = p.versionName;
        newInfo.versionCode = p.versionCode;
        newInfo.icon = p.applicationInfo.loadIcon(getPackageManager());
        res.add(newInfo);
    }
    return res;
}

/** 获取未安装的APK信息  
     * @param context  
     * @param archiveFilePath APK文件的路径。如：/sdcard/download/XX.apk  
     */  
    public void getUninatllApkInfo(Context context, String archiveFilePath){  
        PackageManager pm = context.getPackageManager();  
        PackageInfo info = pm.getPackageArchiveInfo(archiveFilePath, PackageManager.GET_ACTIVITIES);  
        if(info != null){  
            ApplicationInfo appInfo = info.applicationInfo;  
            String appName = pm.getApplicationLabel(appInfo).toString();  
            String packageName = appInfo.packageName;  
            Drawable icon = pm.getApplicationIcon(appInfo);  
        }  
    }