Android開發之獲取所有軟件信息

程序運行效果圖：

程序代碼：

/**
 * 獲取所有軟件信息
 * 1.通過異步的方式顯示系統中所有軟件
 * 2.單擊打開指定軟件
 * 3.將所有軟件的包名和activity名保存的本地SharedPreferences
 * @author jph
 * Date:2014.09.21
 */
public class ScanPackage1 extends Activity {
    /**掃描成功**/
    private final static int FLAG_LOAD_SUCCESS=0x10001;
    private final static int SCANNING=0x10002;  
    private ListView list;
    private List<Map<String, Object>>items=new ArrayList<Map<String,Object>>();
    private SimpleAdapter adapter;
    // 取得所有安裝軟件信息
    private List<PackageInfo> allPackageInfos;
    // 取得自己安裝的軟件信息
    private List<PackageInfo> userPackageInfos;
    // 取得系統安裝的軟件信息
    private List<PackageInfo> sysPackageInfos;    
    Handler mHandler=new Handler(){
        @Override
        public void handleMessage(Message msg) {
            // TODO Auto-generated method stub
            switch (msg.what) {
            case FLAG_LOAD_SUCCESS://完成掃描

                break;
            case SCANNING://正在掃描                    
                items.add((Map<String, Object>) msg.obj);
                //通知適配器數據改變
                adapter.notifyDataSetChanged();             
                break;

            default:
                break;
            }           
        }           
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.sp_layout);
        list=(ListView)findViewById(R.id.list);
        new ScanThread().start();
        adapter=new SimpleAdapter(this, items, R.layout.line, new String[]{
                "imgIco","appName","packageName"
        }, new int[]{R.id.imgIco,R.id.tvAppName,R.id.tvAppDesc});
        list.setAdapter(adapter);
        //ViewBinder該類可以幫助SimpleAdapter加載圖片(如：Bitmap,Drawable)
        adapter.setViewBinder(new ViewBinder() {            
            @Override
            public boolean setViewValue(View view, Object data,
                    String textRepresentation) {
                // TODO Auto-generated method stub
                 if(view instanceof ImageView  && data instanceof Drawable){    
                      ImageView iv = (ImageView) view;    
                      iv.setImageDrawable((Drawable) data);                    
                       return true;    
                   }else{
                       return false;  
                   }   
            }
        });
        list.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                // TODO Auto-generated method stub
                try {
                    PackageInfo pInfo=allPackageInfos.get(arg2);
                    Intent intent=new Intent();
                    intent.setComponent(new ComponentName(pInfo.packageName, pInfo.activities[0].name));                
                    startActivity(intent);
                } catch (Exception e) {
                    // TODO: handle exception
                    e.printStackTrace();
                }

            }
        });

    }
    // ***************--------*創建一個線程加載安裝程序*--------------*******************//
        private class ScanThread extends Thread {
            @Override
            public void run() {
                // 取得系統安裝所有軟件信息
                allPackageInfos = getPackageManager().getInstalledPackages(
                        PackageManager.GET_UNINSTALLED_PACKAGES
                                | PackageManager.GET_ACTIVITIES);
                // 定義用戶安裝軟件信息包
                userPackageInfos = new ArrayList<PackageInfo>();
                // 定義系統安裝軟件信息包
                sysPackageInfos = new ArrayList<PackageInfo>();               
                // 循環取出所有軟件信息
                for (int i = 0; i < allPackageInfos.size(); i++) {                   
                    // 得到每個軟件信息
                    PackageInfo temp = allPackageInfos.get(i);
                    ApplicationInfo appInfo = temp.applicationInfo;
                    if ((appInfo.flags & ApplicationInfo.FLAG_UPDATED_SYSTEM_APP) != 0
                            || (appInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
                        //系統軟件
                        sysPackageInfos.add(temp);                      

                    } else {
                        //用戶自己安裝軟件
                        userPackageInfos.add(temp);                         
                    }   
                    //獲取程序的圖標
                    Drawable ico=ScanPackage1.this.getPackageManager().getApplicationIcon(appInfo);
                    //獲取程序的名稱
                    String appName=(String) ScanPackage1.this.getPackageManager().getApplicationLabel(appInfo);
                    Map<String, Object>item=new HashMap<String, Object>();
                    //獲取程序的包名
                    String packageName=appInfo.packageName;         
                    item.put("imgIco", ico);
                    item.put("appName", appName);
                    item.put("packageName", packageName);
                    Message message = new Message();
                    message.what =SCANNING;
                    message.obj = item;
                    mHandler.sendMessage(message);

                }
                saveInfo(sysPackageInfos, userPackageInfos);            
                mHandler.sendEmptyMessage(FLAG_LOAD_SUCCESS);
            }
        };

        /**
         * 將系統中所裝程序的信息寫入到配置文件   
         * @param sysPackageInfos 系統安裝軟件信息包
         * @param userPackageInfos 用戶安裝軟件信息包
         */
        private void saveInfo(List<PackageInfo> sysPackageInfos,List<PackageInfo> userPackageInfos) {   
           //將用戶安裝的軟件添加到添加到系統軟件的集合中
            sysPackageInfos.addAll(userPackageInfos);
            SharedPreferences sp = this.getSharedPreferences("appInfs",
                    MODE_PRIVATE);
            Editor editor = sp.edit();
            for (int i = 0; i < sysPackageInfos.size(); i++) {
                try {
                    //獲取程序的包名
                    String packageName = sysPackageInfos.get(i).packageName;
                    // 取出activity信息
                    ActivityInfo activityInfo = sysPackageInfos.get(i).activities[0];
                    // 取出activity名字
                    String activityName=activityInfo.name;                  
                    //將程序的信息寫入到配置文件
                    editor.putString(packageName, activityName);                    
                } catch (Exception e) {
                    // TODO: handle exception
                    e.printStackTrace();
                }   

            }       
            editor.commit();
        }
}