Java tutorial
/******************************************************************************* * Copyright 2014 Alexander Leontyev * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package com.woodblockwithoutco.quickcontroldock.model.impl.actions; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import android.content.Context; import android.content.Intent; import android.os.AsyncTask; import android.support.v4.content.LocalBroadcastManager; import android.telephony.TelephonyManager; import android.util.Log; import com.woodblockwithoutco.quickcontroldock.model.action.ToggleAction; public class DataLollipopAction extends ToggleAction { private static final String TAG = "DataAction"; private TelephonyManager mTelephonyManager; private Method mToggleDataMethod; private Method mIsDataEnabledMethod; private Intent mBroadcastIntent; private Context mContext; public DataLollipopAction(Context context) { mContext = context; mBroadcastIntent = new Intent(); mBroadcastIntent.setAction(context.getPackageName() + ".DATA_BUTTON_CLICKED"); mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); Class<TelephonyManager> telManClass = TelephonyManager.class; try { mIsDataEnabledMethod = telManClass.getDeclaredMethod("getDataEnabled"); mToggleDataMethod = telManClass.getDeclaredMethod("setDataEnabled", boolean.class); mIsDataEnabledMethod.setAccessible(true); mToggleDataMethod.setAccessible(true); } catch (NoSuchMethodException e) { Log.e(TAG, "Can't find methods for manipulating mobile data state"); } } @Override protected void performActionOn() { new AsyncTask<Void, Void, Void>() { @Override protected Void doInBackground(Void... args) { try { mToggleDataMethod.invoke(mTelephonyManager, true); } catch (IllegalAccessException e) { Log.e(TAG, "Inaccessible data toggle method"); } catch (IllegalArgumentException e) { Log.e(TAG, "Invalid data toggle method signature"); } catch (InvocationTargetException e) { e.printStackTrace(); Log.e(TAG, "Invalid data toggle method invocation target: " + e.getCause().getMessage()); } return null; } @Override protected void onPostExecute(Void result) { LocalBroadcastManager.getInstance(mContext).sendBroadcast(mBroadcastIntent); } }.execute(); } @Override protected void performActionOff() { new AsyncTask<Void, Void, Void>() { @Override protected Void doInBackground(Void... args) { try { mToggleDataMethod.invoke(mTelephonyManager, false); } catch (IllegalAccessException e) { Log.e(TAG, "Inaccessible data toggle method"); } catch (IllegalArgumentException e) { Log.e(TAG, "Invalid data toggle method signature"); } catch (InvocationTargetException e) { e.printStackTrace(); Log.e(TAG, "Invalid data toggle method invocation target: " + e.getCause().getMessage()); } return null; } @Override protected void onPostExecute(Void result) { LocalBroadcastManager.getInstance(mContext).sendBroadcast(mBroadcastIntent); } }.execute(); } @Override public boolean isStateOn() { boolean result = false; try { result = (Boolean) mIsDataEnabledMethod.invoke(mTelephonyManager); } catch (IllegalAccessException e) { Log.e(TAG, "Inaccessible data state method"); } catch (IllegalArgumentException e) { Log.e(TAG, "Invalid data state method signature"); } catch (InvocationTargetException e) { Log.e(TAG, "Invalid data state method invocation target"); } return result; } @Override public boolean isStateOff() { return !isStateOn(); } }