Android获取设备上全部应用名称及图片的示例

代码示例如下：

1、得到所有应用对应的ResolveInfo

.............private void setupAdapter() {    //创建一个隐式Intent，所有应用的主Activity均能处理该Intent    Intent startupIntent = new Intent(Intent.ACTION_MAIN);    startupIntent.addCategory(Intent.CATEGORY_LAUNCHER);    final PackageManager pm =  getActivity().getPackageManager();    //利用Pkg Mgr解析Intent，得到所有能够处理Intent的Activity的ResolveInfo    List<ResolveInfo> activities = pm.queryIntentActivities(startupIntent, 0);    //排序    Collections.sort(activities, new Comparator<ResolveInfo>() {        @Override        public int compare(ResolveInfo a, ResolveInfo b) {            return String.CASE_INSENSITIVE_ORDER.compare(                    a.loadLabel(pm).toString(),                    b.loadLabel(pm).toString()            );        }    });    mRecyclerView.setAdapter(new ActivityAdapter(activities));}...............

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2、解析出ResolveInfo后，就可以从ResolveInfo中获取到应用名称及图片

void bindActivity(ResolveInfo resolveInfo) {    mResolveInfo = resolveInfo;    PackageManager pm = getActivity().getPackageManager();    //得到图片    mImageView.setImageDrawable(mResolveInfo.loadIcon(pm));    //得到名称    String appName = mResolveInfo.loadLabel(pm).toString();    mNameTextView.setText(appName);}

ResolveInfo中还可以得到其它信息，可以参考对应的API。