标记一下

                     // 调出手机market并搜索出相应的APK                    Uri uri = Uri.parse("market://search?q=pname:"                            + SCAN_PACKAGE);                    Intent scanintent = new Intent(Intent.ACTION_VIEW, uri);                    try                    {                        startActivity(scanintent);                    }                    catch (ActivityNotFoundException anfe)                    {                        Log.w(TAG,                                "Android Market is not installed; cannot install Barcode Scanner");                    } ?

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// 调至系统联系人界面，选择联系人，并返回数据

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                    Intent intent = new Intent();                    intent.setAction(Intent.ACTION_PICK);                    intent.setData(ContactsContract.Contacts.CONTENT_URI);                    try                    {                        startActivityForResult(intent, FLAG_RESULT_SYS_CONTACTS);                    }                    catch (ActivityNotFoundException e1)                    {                        e1.printStackTrace();                        Log.w(TAG, "No contacts pick...");                    }

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