【Android】获得已安装应用

步骤

1. 获得上下文Context，调用getPackageManager()获得PackageManager实例
2. PackageManager实例，调用getInstalledPackages(int flag)并传入flag值获得相应已安装包信息PackageInfo列表

示例代码：

 

package dyingbleed.iteye;

import java.util.ArrayList;
import java.util.List;

import android.app.ListActivity;
import android.content.Context;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageInfo;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class Main extends ListActivity {
	
	private Handler handler = new Handler() {

		@Override
		public void handleMessage(Message msg) {
			super.handleMessage(msg);
			int what = msg.what;
			switch(what) {
			case 0 :
				List<APP> data = (List<APP>) msg.obj;
				setListAdapter(new APPListViewAdapter(Main.this, data));
				break;
			}
		}
		
	};
	
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        new Thread(new InstalledAPPTask()).start();
    }
    
    private class APPListViewAdapter extends BaseAdapter {
    	
    	private Context context;
    	private List<APP> data;
    	
    	public APPListViewAdapter(Context context, List<APP> data) {
    		this.context = context;
    		this.data = data;
    	}

		@Override
		public int getCount() {
			return data.size();
		}

		@Override
		public Object getItem(int position) {
			return data.get(position);
		}

		@Override
		public long getItemId(int position) {
			return position;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			if(convertView == null) {
				convertView = LayoutInflater.from(context).inflate(R.layout.item, null);
			}
			ImageView icon = (ImageView) convertView.findViewById(R.id.item_IconImageView);
			TextView name = (TextView) convertView.findViewById(R.id.item_NameTextView);
			TextView packageName = (TextView) convertView.findViewById(R.id.item_PackageNameTextView);
			TextView versionName = (TextView) convertView.findViewById(R.id.item_VersionNameTextView);
			
			icon.setImageDrawable(data.get(position).getIcon());
			name.setText(data.get(position).getName());
			packageName.setText(data.get(position).getPackageName());
			versionName.setText(data.get(position).getVersionName());
			
			return convertView;
		}
    	
    }
    
    private class InstalledAPPTask implements Runnable {
    	
		@Override
		public void run() {
			List<APP> appList = achieveAPPList();
			handler.sendMessage(handler.obtainMessage(0, appList));
		}
		
		private List<APP> achieveAPPList() {
			List<APP> result = new ArrayList<APP>();
			
			List<PackageInfo> packageInfoList = getPackageManager().getInstalledPackages(0); //返回已安装的包信息列表
			for(PackageInfo packageInfo : packageInfoList) {
				/*
				 * 判断是否为非系统应用
				 * */
				if((packageInfo.applicationInfo.flags&ApplicationInfo.FLAG_SYSTEM) == 0) {
					APP app = new APP();
					app.setIcon(packageInfo.applicationInfo.loadIcon(getPackageManager()));
					app.setName(packageInfo.applicationInfo.loadLabel(getPackageManager()).toString());
					app.setPackageName(packageInfo.packageName);
					app.setVersionName(packageInfo.versionName);
					result.add(app);
				}
			}
			return result;
			
		}
		
	}
    
    private class APP {
    	
    	private String name; //应用名
    	private String packageName; //包名
    	private String versionName; //版本名
    	private Drawable icon; //应用图标
    	
    	public String getName() {
    		return name;
    	}
    	
    	public void setName(String name) {
    		this.name = name;
    	}
    	
    	public String getPackageName() {
    		return packageName;
    	}
    	
    	public void setPackageName(String packageName) {
    		this.packageName = packageName;
    	}
    	
    	public String getVersionName() {
    		return versionName;
    	}
    	
    	public void setVersionName(String versionName) {
    		this.versionName = versionName;
    	}
    	
    	public Drawable getIcon() {
    		return icon;
    	}
    	
    	public void setIcon(Drawable icon) {
    		this.icon = icon;
    	}

    }
}

 

运行结果：

 

评论

1 楼 ihopethatwell 2013-08-22  

楼主附上布局吧