Android-获取手机已经安装的程序-推送好友

从手机中获得已安装的程序或指定程序，推送给好友！

package com.example.viper;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageInfo;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.AdapterView.OnItemLongClickListener;
import android.widget.SimpleAdapter.ViewBinder;


public class TuiJianActivity extends Activity implements OnClickListener{
private ListView listView;
private List<Map<String, Object>> list;

@Override
protected void onCreate(Bundle savedInstanceState) {
//Log.v(TAG, "created");
super.onCreate(savedInstanceState);
setContentView(R.layout.viper_sz_list);


listView = (ListView) this.findViewById(R.id.SZ_listView);
list = new ArrayList<Map<String, Object>>();
List<PackageInfo> appListInfo = this.getPackageManager()
.getInstalledPackages(0);

for (PackageInfo p : appListInfo) {
// if (p.applicationInfo.sourceDir.startsWith("/system/viper/")) {
// continue;
// }
Map<String, Object> map = new HashMap<String, Object>();
Drawable icon = null;
String appName = "";
try {
appName = this.getPackageManager()
.getApplicationLabel(p.applicationInfo).toString();
icon = this.getPackageManager().getApplicationIcon(
p.applicationInfo.packageName);
} catch (Exception e) {
e.printStackTrace();
}
if (appName.equals("Viper")) {//我的程序名称
map.put("name", appName);
map.put("package", p.applicationInfo.packageName);
map.put("sourceDir", p.applicationInfo.sourceDir);
map.put("icon", icon);
list.add(map);
}
}
SimpleAdapter adapter = new SimpleAdapter(this, list, R.layout.viper_sz_pic,
new String[] { "name", "icon" }, new int[] { R.id.sz_name,
R.id.sz_icon });
adapter.setViewBinder(new ViewBinder() {
public boolean setViewValue(View view, Object data,
String textRepresentation) {
// 判断是否为我们要处理的对象
if (view instanceof ImageView && data instanceof Drawable) {
ImageView iv = (ImageView) view;
iv.setImageDrawable((Drawable) data);
return true;
} else
return false;
}
});
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener() {


@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if (list.get(position).get("sourceDir") != null) {
File f = new File(list.get(position).get("sourceDir")
.toString());
// 调用android分享窗口
Intent intent = new Intent();
intent.setAction(Intent.ACTION_SEND);
intent.setType("*/*");
intent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(f));
startActivity(intent);
}
}


});
}


@Override
protected void onDestroy() {
//Log.v(TAG, "destroy");
super.onDestroy();
}


@Override
public void onClick(View v) {


}
}

//********************************************************************************************************************以下是转载内容

有时候我们会查询手机里面是否安装了某个程序，或者获取已经安装软件名称的集合。

android这边提供了相应的接口。

[java]  view plain copy

1. final PackageManager packageManager = getActivity().getPackageManager();//获取packagemanager   
2. List< PackageInfo> pinfo = packageManager.getInstalledPackages(0);//获取所有已安装程序的包信息   
3.     if(pinfo != null){   
4.     for(int i = 0; i < pinfo.size(); i++){   
5.         String packName = pinfo.get(i).packageName;   
6.         Log.d("info", "-->"+packName);  
7.     }   
8. }   

上面的例子可以打印出安装软件的包名。每个程序的包名在android手机里都是唯一的。

判断手机是否安装了某个程序，如果安装了此程序，删除它。

[java]  view plain copy

1. private void uninstallSoftware(Context context, String name) {  
2.     final PackageManager packageManager = context.getPackageManager();  
3.     try {  
4.         PackageInfo pInfo = packageManager.getPackageInfo(name,  
5.                 PackageManager.COMPONENT_ENABLED_STATE_DEFAULT);  
6.         if(pInfo!=null){  
7.             //删除软件  
8.             Uri uri = Uri.parse("package:"+ name);  
9.             Intent intent = new Intent(Intent.ACTION_DELETE, uri);  
10.             context.startActivity(intent);  
11.         }  
12.     } catch (NameNotFoundException e) {  
13.         e.printStackTrace();  
14.     }  
15. }  

从android2.2开始软件可以安装到SD卡上，所以也有相应接口判断程序是否安装到SD卡上

[java]  view plain copy

1. private void isInstallOnSd(Context context,String name){  
2.     PackageManager pm=context.getPackageManager();  
3.     ApplicationInfo appInfo;  
4.     try {  
5.         appInfo = pm.getApplicationInfo(name, 0);  
6.         if ((appInfo.flags & ApplicationInfo.FLAG_EXTERNAL_STORAGE) != 0) {  
7.                // App on sdcard  
8.             Log.d("info", "app on sd");  
9.         }  
10.     } catch (NameNotFoundException e) {  
11.         e.printStackTrace();  
12.     }   
13. }