获取具有2个或更多活动的应用程序

I'm writing an Launcher app for android. I can get the list of all applications and launch able activities with

我正在为Android编写一个Launcher应用程序。我可以获得所有应用程序的列表和启动活动

ArrayList<PInfo> res = new ArrayList<PInfo>();
List<PackageInfo> packs = ctx.getPackageManager().getInstalledPackages(PackageManager.GET_ACTIVITIES);

final PackageItemInfo.DisplayNameComparator comparator = new PackageItemInfo.DisplayNameComparator(ctx.getPackageManager());

Collections.sort(packs, new Comparator<PackageInfo>() {
    @Override
    public int compare(PackageInfo lhs, PackageInfo rhs) {
        return comparator.compare(lhs.applicationInfo, rhs.applicationInfo);
    }
});

for (int i = 0; i < packs.size(); i++) {
    PackageInfo p = packs.get(i);
    if (p.packageName != null && ctx.getPackageManager().getLaunchIntentForPackage(p.packageName) != null ) {
        PInfo newInfo = new PInfo();
        if (p.applicationInfo.loadLabel(ctx.getPackageManager()).toString().length() > 15) {
            newInfo.appname = p.applicationInfo.loadLabel(ctx.getPackageManager()).toString().substring(0, 15);
        } else {
            newInfo.appname = p.applicationInfo.loadLabel(ctx.getPackageManager()).toString();
        }
        newInfo.packageName = p.packageName;
        newInfo.icon = p.applicationInfo.loadIcon(ctx.getPackageManager());
        res.add(newInfo);
    }
}

this.

But, the problem is, there is 2 launch able activities included like phone and contacts app.

但是,问题是,包括电话和联系人应用程序在内的2个可启动活动。

I mean for example samsung included contacts launch able activity and phone launch able activity in same package. But with this code i can only get the contacts application into my view, phone app is missing. how other launchers are handling this? or what am i missing?

我的意思是例如三星包括联系人启动能力活动和电话启动能力活动在同一个包中。但是使用此代码我只能将联系人应用程序放入我的视图中,手机应用程序丢失了。其他发射器如何处理这个?或者我错过了什么?

1 个解决方案

#1

Don't look for apps. Look for launchable activities, using queryIntentActivities() on PackageManager.

不要寻找应用程序。使用PackageManager上的queryIntentActivities()查找可启动的活动。

For example, this activity (from this sample project) implements a home screen-style launcher using this technique:

例如,此活动(来自此示例项目)使用此技术实现主屏幕样式启动器:

/***
  Copyright (c) 2008-2012 CommonsWare, LLC
  Licensed under the Apache License, Version 2.0 (the "License"); you may not
  use this file except in compliance with the License. You may obtain a copy
  of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
  by applicable law or agreed to in writing, software distributed under the
  License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
  OF ANY KIND, either express or implied. See the License for the specific
  language governing permissions and limitations under the License.

  From _The Busy Coder's Guide to Android Development_
    http://commonsware.com/Android
*/

package com.commonsware.android.launchalot;

import android.app.ListActivity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import java.util.Collections;
import java.util.List;

public class Launchalot extends ListActivity {
  AppAdapter adapter=null;

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

    PackageManager pm=getPackageManager();
    Intent main=new Intent(Intent.ACTION_MAIN, null);

    main.addCategory(Intent.CATEGORY_LAUNCHER);

    List<ResolveInfo> launchables=pm.queryIntentActivities(main, 0);

    Collections.sort(launchables,
                     new ResolveInfo.DisplayNameComparator(pm)); 

    adapter=new AppAdapter(pm, launchables);
    setListAdapter(adapter);
  }

  @Override
  protected void onListItemClick(ListView l, View v,
                                 int position, long id) {
    ResolveInfo launchable=adapter.getItem(position);
    ActivityInfo activity=launchable.activityInfo;
    ComponentName name=new ComponentName(activity.applicationInfo.packageName,
                                         activity.name);
    Intent i=new Intent(Intent.ACTION_MAIN);

    i.addCategory(Intent.CATEGORY_LAUNCHER);
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
                Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
    i.setComponent(name);

    startActivity(i);    
  }

  class AppAdapter extends ArrayAdapter<ResolveInfo> {
    private PackageManager pm=null;

    AppAdapter(PackageManager pm, List<ResolveInfo> apps) {
      super(Launchalot.this, R.layout.row, apps);
      this.pm=pm;
    }

    @Override
    public View getView(int position, View convertView,
                          ViewGroup parent) {
      if (convertView==null) {
        convertView=newView(parent);
      }

      bindView(position, convertView);

      return(convertView);
    }

    private View newView(ViewGroup parent) {
      return(getLayoutInflater().inflate(R.layout.row, parent, false));
    }

    private void bindView(int position, View row) {
      TextView label=(TextView)row.findViewById(R.id.label);

      label.setText(getItem(position).loadLabel(pm));

      ImageView icon=(ImageView)row.findViewById(R.id.icon);

      icon.setImageDrawable(getItem(position).loadIcon(pm));
    }
  }
}

#1