android中在广播中弹出pop框的局限性

  广播的接收处理只有10s，所以一般不推荐在onreceive中弹出对话框，最多是通知或者吐司。

   一开始在广播中弹出一个对话框，是在设置进程中的，发现只要把设置进程杀死，这个框会自动消失的，用户无法进行操作，所以直接上代码：

在onreceive中起一个activity：

                                  Intent intentactivity = new Intent();
 intentactivity.setClass(context,WifiRemindActivity.class);
 intentactivity.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 context.startActivity(intentactivity);

在manifest下将这个activity设置成dialog类型的：

<activity android:name="com.android.settings.wifi.WifiRemindActivity"

                  android:theme="@android:style/Theme.Dialog" 

                  android:taskAffinity=""

                  android:excludeFromRecents="true">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

            </intent-filter>

             <meta-data android:name="hwc-theme"

                android:value="androidhwext:style/Theme.Emui.Dialog.Alert"/>//这个是配置相应的主题可以修改

        </activity>

接下来在activity中的处理：

public class WifiRemindActivity extends Activity {

    private static final String TAG = "WifiRemindActivity";

    private  AlertDialog mAlertDialog;

    private static Timer time = null;

    private static final String action = "com.android.telephony.USER_ACTION";

    private TelephonyManager telephonyMgr = null;

    private CheckBox mCheckbox;

    private static final String WIFI_STATE_CHANGE = "android.net.wifi.STATE_CHANGE";

    private IntentFilter mIntentFilter;

    private WifiInfo   wifiInfo;

    private WifiManager mwifiManager;

    private WifiStateReceiver  myreceiver;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        if(telephonyMgr  == null) {

            telephonyMgr = TelephonyManager.from(this);

        }

        showRemindAlert();//show出 对话框

        mIntentFilter = new IntentFilter();

        mIntentFilter.addAction(WIFI_STATE_CHANGE);

        myreceiver = new WifiStateReceiver();

        registerReceiver(myreceiver, mIntentFilter);

    }

    private Handler hand =new Handler() {

        public void handleMessage(Message msg){

            super.handleMessage(msg);

            if(msg.what ==  0x111) {

                if(mAlertDialog !=null)

                   mAlertDialog.dismiss();

                   WifiRemindActivity.this.finish();
Log.d("wanghui", "timeover");

            }

        }

    };

    private TimerTask task = new TimerTask(){

        public void run() {

            Message msg = new Message();

            msg.what =  0x111;

            hand.sendMessage( msg);

        }

    };

    private void showRemindAlert() {

        int themeID = getResources().getIdentifier("androidhwext:style/Theme.Emui.Dialog.Alert",null,null); 

        AlertDialog.Builder builder = new  AlertDialog.Builder(this,themeID);

        builder.setTitle(R.string.wifi_is_disconnect);
               

        builder.setPositiveButton(R.string.open_confirm,new OpenDataConnectOKListener());

        builder.setNegativeButton(R.string.cancle_confirm, new CloseDataConnectOKListener());

        mAlertDialog = builder.create();

        final  View  layout = mAlertDialog.getLayoutInflater().inflate(R.layout.define_view_dialog,null);

        mCheckbox = (CheckBox) layout.findViewById(R.id.closeReminder);

        mAlertDialog.setView(layout);

        mAlertDialog.setCanceledOnTouchOutside(false);

        mAlertDialog.setCancelable(false);

        mAlertDialog.getWindow().setType(

                WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);

        mAlertDialog.getWindow().addFlags(

                WindowManager.LayoutParams.FLAG_DIM_BEHIND);

        mAlertDialog.show();

        if(time != null){

            time.cancel();

        }

        time = new Timer();//定时让这个弹出框消失

        //add by wanghui for al812 HQ01398660 5min later

        time.schedule(task,5*60*1000);

    }

    private class OpenDataConnectOKListener implements OnClickListener {

        @Override

        public void onClick(DialogInterface dialog, int whichButton) {  

            Log.v(TAG, "TAG ok");

            telephonyMgr.setDataEnabled(true);

            if (mCheckbox.isChecked()) {//用户点击不在提示走的流程

            Settings.System.putString(getContentResolver(),"switch_mode_key","3");

            Intent intent = new Intent(action);

            WifiRemindActivity.this.sendBroadcast(intent);

            WifiRemindActivity.this.finish();

            Settings.System.putString(getContentResolver(),"flag_state","1");

            Log.v("TAG", "save="+mCheckbox.isChecked());

        } else{

              //modify by wanghui for al812 activity not finish

              WifiRemindActivity.this.finish(); 
 }

      }

    }

    private class CloseDataConnectOKListener implements OnClickListener {

        @Override

        public void onClick(DialogInterface dialog, int whichButton) {  

            Log.v(TAG, "TAG cancle");

            WifiRemindActivity.this.finish();

      }

    }

    class WifiStateReceiver extends BroadcastReceiver {

        @Override

        public void onReceive(Context context, Intent intent) {

            String action = intent.getAction();

            NetworkInfo info = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO); 

            Log.d("wanghui: " , action);

               if(action.equals(WIFI_STATE_CHANGE)){
        if(info.getState().equals(NetworkInfo.State.CONNECTED)&&(mAlertDialog!=null)) {

                     mAlertDialog.dismiss();

                     WifiRemindActivity.this.finish();
    Log.d("wanghui", "reconnect");

                 }                    

            }

        }

    }

    

    @Override

    protected void onDestroy(){
super.onDestroy();
unregisterReceiver(myreceiver);
}

}

//布局文件define_view_dialog就没上传了只有一个textview和checkbox