如何显示用户将 Android 应用程序安装到列表视图？ [关闭]

Posted 2023-04-15

【中文标题】如何显示用户将 Android 应用程序安装到列表视图？ [关闭]

【英文标题】：How to show Android applications are installed by user to a listview? [closed]

【发布时间】：2012-12-30 20:17:13

【问题描述】：

我正在编写一个类似任务管理器的应用程序。我想知道如何将用户安装的android应用程序显示到列表视图中，请大家帮助我

我刚刚做了一些这样的功能来管理Android中的应用程序，代码还可以，但我想添加更多功能

public void onClick(View v) 
    // TODO Auto-generated method stub
    switch (v.getId()) 
    case R.id.appinfo:
        final ActivityManager actvityManager = (ActivityManager) this.getSystemService( ACTIVITY_SERVICE );

           List<RunningAppProcessInfo> procInfos = actvityManager.getRunningAppProcesses();


            for(int i = 0; i < procInfos.size(); i++)

            

                    tv.setText(tv.getText().toString()+procInfos.get(i).processName+

                                " " + String.valueOf(procInfos.get(i).processName.length())+"\n");

                    if(procInfos.get(i).processName.equals("com.android.camera")) 

                        Toast.makeText(getApplicationContext(), "Camera App is running", Toast.LENGTH_LONG).show();

                    
                    else
                        Toast.makeText(getApplicationContext(), "Camera App is not running", Toast.LENGTH_LONG).show();
                    

            

        break;

    case R.id.taskinfo:
         final   ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
         final List<RunningTaskInfo> recentTasks = activityManager.getRunningTasks(Integer.MAX_VALUE);

          for (int i = 0; i < recentTasks.size(); i++) 
            
               tv.setText("Executed app"+ "Application executed : " +recentTasks.get(i).baseActivity.toShortString()+ "\t\t ID: "+recentTasks.get(i).id+"");         
            

          break;

    case R.id.serviceinfo:
        final String APP_TAG = "tag";

        ActivityManager activityManager1 = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
        List<ActivityManager.RunningServiceInfo>runningServices = activityManager1.getRunningServices(50);

        for (int i = 0;i < runningServices.size();i++)

            ActivityManager.RunningServiceInfo runningServiceInfo = runningServices.get(i);

            tv.setText(APP_TAG + "Process " + runningServiceInfo.process + " with component " + runningServiceInfo.service.getClassName());

        

【问题讨论】：

我们会帮助你，但你做了什么？或者您想要我们这边的完整代码？ :)

我做了一个这样的程序

【参考方案1】：

你可以使用 packageManager 来做到这一点，

 final PackageManager pm = getPackageManager();
//get a list of installed apps.
        List<ApplicationInfo> packages = pm
                .getInstalledApplications(PackageManager.GET_META_DATA);

        for (ApplicationInfo packageInfo : packages) 

            Log.d(TAG, "Installed package :" + packageInfo.packageName);
            Log.d(TAG,
                    "Launch Activity :"
                            + pm.getLaunchIntentForPackage(packageInfo.packageName)); 

             // put application name to an Array, then set listviews adapter with this array