android - 从包名中获取应用程序信息

Question

我有一个应用程序包名称。有什么方法可以获取此应用程序的图标、名称吗？包名示例：com.example.name

Answer 1

尝试类似：

    try {
        ApplicationInfo app = this.getPackageManager().getApplicationInfo("com.example.name", 0);        

        Drawable icon = packageManager.getApplicationIcon(app);
        String name = packageManager.getApplicationLabel(app);
        return icon;
    } catch (NameNotFoundException e) {
        Toast toast = Toast.makeText(this, "error in getting icon", Toast.LENGTH_SHORT);
        toast.show();
        e.printStackTrace();
    }

Answer 2

Drawable icon =getPackageManager().getApplicationIcon("ur_package");

Strign label = context.getPackageManager().getApplicationLabel("ur_package");

Answer 3

String PackgeNameApp = "com.test.icon";
            String name="NULL";
            try
            {
                ApplicationInfo app = this.getPackageManager().getApplicationInfo(PackgeNameApp, 0);
                Drawable icon = getPackageManager().getApplicationIcon(app);
                 name = getPackageManager().getApplicationLabel(app).toString();

            }
            catch (PackageManager.NameNotFoundException e)
            {
                //
            }

Answer 4

如果您想获取已安装的应用程序包名称，那么此代码将对您有所帮助。

 Intent mainIntent = new Intent(Intent.ACTION_MAIN, null);
                mainIntent.addCategory(Intent.CATEGORY_LAUNCHER);
                List<ResolveInfo> pkgAppsList = MainActivity.this.getPackageManager().queryIntentActivities( mainIntent, 0);
                Log.i("InstalledAPK",pkgAppsList.toString());


              for(int i=0;i<pkgAppsList.size();i++){
                  list.add(pkgAppsList.get(i).toString());
                  Log.e("PACKAGENAME",""+MainActivity.this.getPackageManager().getInstalledPackages(i).get(i).packageName);
              }


                ArrayAdapter<String> adapter=new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1,list);
                listView.setAdapter(adapter);