Question

我正在警报网格视图中构建已安装的应用。而我正在选择一些喜欢的应用程序，然后添加到另一个网格视图，如果我从新的gridview应用程序中选择任何应用程序，它获取Intent值（ getLaunchIntentForPackage ）为空。

quick_links_alert.setPositiveButton("OK", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int whichButton) {
            List<String> mArrayProducts = clad.getCheckedItems();
            final QuickLinksGridViewAdaptor selected_apps = new QuickLinksGridViewAdaptor(HomeActivity.this, mArrayProducts);
            gv_shortcut.setAdapter(selected_apps);
            Toast.makeText(getApplicationContext(),"Selected Items-->:"+mArrayProducts,Toast.LENGTH_LONG).show();
            PackageManager pm = HomeActivity.this.getPackageManager();
            Intent quick_intent = new Intent(Intent.ACTION_MAIN, null);
            final List<ResolveInfo> list = pm.queryIntentActivities(quick_intent, PackageManager.PERMISSION_GRANTED);
            gv_shortcut.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                @Override
                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    final String packageName = list.get(position).activityInfo.packageName;
                    Intent PackageManagerIntent = getPackageManager().getLaunchIntentForPackage(packageName);
                    if (PackageManagerIntent != null) {
                        startActivity(PackageManagerIntent);
                    }
                    else {
                        Toast.makeText(getApplicationContext(),"NULL",Toast.LENGTH_LONG).show();
                    }
                }
            });
        }
In my grid view 8 applications are available.If I click any application its PackageManagerIntent is getting null and 1 and 3 position application its always open google search engine and player application is opening.

Answer 1

我已经解决了这个问题：

String s = mArrayProducts.get(position).getPackageName();
Intent PackageManagerIntent = getPackageManager().getLaunchIntentForPackage(s); NULL
startActivity(PackageManagerIntent);

对于应用程序，getLaunchIntentForPackage为null

1 个答案: