如何创建与每个已安装的 android 应用程序（在用户手机上）关联的活动（android 类）的列表（文件名、位置）？

Posted 2023-04-19

【中文标题】如何创建与每个已安装的 android 应用程序（在用户手机上）关联的活动（android 类）的列表（文件名、位置）？

【英文标题】：How can I create a list (file name, location) of activities (android classes) associated with each installed android app (on a user's phone)?

【发布时间】：2015-08-02 03:13:50

【问题描述】：

到目前为止，我已经编写了一个应用程序，它会获取用户手机上所有已安装的 android 应用程序（名称和图标）的列表；

但我也想创建一个与每个已安装的 android 应用程序（文件名，位置地址）。

我怎样才能做到这一点？

到目前为止的代码：

MainActivity.java

public class MainActivity extends ListActivity 
    private PackageManager packageManager = null;
    private List<ApplicationInfo> applist = null;
    private ApplicationAdapter listadaptor = null;

    @Override
    public void onCreate(Bundle savedInstanceState) 
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        packageManager = getPackageManager();

        new LoadApplications().execute();
    

    public boolean onCreateOptionsMenu(Menu menu) 
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.menu, menu);

        return true;
    

    public boolean onOptionsItemSelected(MenuItem item) 
        return false;
    


    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) 
        super.onListItemClick(l, v, position, id);

        ApplicationInfo app = applist.get(position);
        try 
            Intent intent = packageManager
                    .getLaunchIntentForPackage(app.packageName);

            if (null != intent) 
                startActivity(intent);
            
         catch (ActivityNotFoundException e) 
            Toast.makeText(MainActivity.this, e.getMessage(),
                    Toast.LENGTH_LONG).show();
         catch (Exception e) 
            Toast.makeText(MainActivity.this, e.getMessage(),
                    Toast.LENGTH_LONG).show();
        
    

    private List<ApplicationInfo> checkForLaunchIntent(List<ApplicationInfo> list) 
        ArrayList<ApplicationInfo> applist = new ArrayList<ApplicationInfo>();
        for (ApplicationInfo info : list) 
            try 
                if (null != packageManager.getLaunchIntentForPackage(info.packageName)) 
                    applist.add(info);
                
             catch (Exception e) 
                e.printStackTrace();
            
        

        return applist;
    

    private class LoadApplications extends AsyncTask<Void, Void, Void> 
        private ProgressDialog progress = null;

        @Override
        protected Void doInBackground(Void... params) 
            applist = checkForLaunchIntent(packageManager.getInstalledApplications(PackageManager.GET_META_DATA));
            listadaptor = new ApplicationAdapter(MainActivity.this,
                    R.layout.snippet_list_row, applist);

            return null;
        

        @Override
        protected void onCancelled() 
            super.onCancelled();
        

        @Override
        protected void onPostExecute(Void result) 
            setListAdapter(listadaptor);
            progress.dismiss();
            super.onPostExecute(result);
        

        @Override
        protected void onPreExecute() 
            progress = ProgressDialog.show(MainActivity.this, null,
                    "Loading application info...");
            super.onPreExecute();
        

        @Override
        protected void onProgressUpdate(Void... values) 
            super.onProgressUpdate(values);
        
    

ApplicationAdapter.java

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;
    
;

【参考方案1】：

我假设只有第三方应用程序的活动将其 android:exported 属性设置为 true，您才能实现您的计划。默认情况下，所有活动都将 android:exported 设置为 false