与所有已安装的应用程序对话框

Question

如何

创建一个对话框，在滚动视图中显示所有已安装的应用程序，其图标位于左侧？

Dialog d = new Dialog(context);
LayoutInflater l = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = l.inflate(R.layout.my_list_dialog_layout, null, false);
d.setContentView(v);
d.show();

这样的东西适用于静态布局，但是如何以编程方式（在运行时）创建包含所有已安装应用程序的列表？

»»»» 更新 «««««««««

由于有些人没有得到我想要的，这里进一步解释：
我不想知道如何获取所有已安装的软件包
我想知道如何在运行时在对话框中创建列表视图？
很抱歉我问了我的问题如此不准确...

Answer 1

检查以下代码：

class AppInfo {
    private String appname = "";
    private String pname = "";
    private String versionName = "";
    private int versionCode = 0;
    private Drawable icon;
    private void prettyPrint() {
        Log.v(appname + "t" + pname + "t" + versionName + "t" + versionCode);
    }
}
private ArrayList<AppInfo> getPackages() {
    // false = no system packages
    ArrayList<AppInfo> apps = getInstalledApps(false); 
    final int max = apps.size();
    for (int i=0; i<max; i++) {
        apps.get(i).prettyPrint();
    }
    return apps;
}
private ArrayList<AppInfo> getInstalledApps(boolean getSysPackages) {
    ArrayList<AppInfo> res = new ArrayList<AppInfo>();        
    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 ;
        }
        AppInfo newInfo = new AppInfo();
        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; 
}

对话框代码 ：-

Dialog d = new Dialog(context);
LayoutInflater l = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View v = l.inflate(R.layout.my_list_dialog_layout, null, false);
ListView mApplicationList = (ListView) v.findViewById(R.id.list);
ArrayList<AppInfo> apps = getPackages();
ApplicationAdapter listadaptor = new ApplicationAdapter(AllAppsActivity.this,
                R.layout.snippet_list_row, apps);
setListAdapter(listadaptor);
d.setContentView(v);
d.show();

适配器代码 ：-

public class ApplicationAdapter extends ArrayAdapter<ApplicationInfo> {
private List<ApplicationInfo> appsList = null;
private Context context;
private PackageManager packageManager;
public ApplicationAdapter(Context context, int textViewResourceId,
        List<ApplicationInfo> appsList) {
    super(context, textViewResourceId, appsList);
    this.context = context;
    this.appsList = appsList;
    packageManager = context.getPackageManager();
}
@Override
public int getCount() {
    return ((null != appsList) ? appsList.size() : 0);
}
@Override
public ApplicationInfo getItem(int position) {
    return ((null != appsList) ? appsList.get(position) : null);
}
@Override
public long getItemId(int position) {
    return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view = convertView;
    if (null == view) {
        LayoutInflater layoutInflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = layoutInflater.inflate(R.layout.snippet_list_row, null);
    }
    ApplicationInfo data = appsList.get(position);
    if (null != data) {
        TextView appName = (TextView) view.findViewById(R.id.app_name);
        TextView packageName = (TextView) view.findViewById(R.id.app_paackage);
        ImageView iconview = (ImageView) view.findViewById(R.id.app_icon);
        appName.setText(data.loadLabel(packageManager));
        packageName.setText(data.packageName);
        iconview.setImageDrawable(data.loadIcon(packageManager));
    }
    return view;
}
};

- 另一个示例链接