Java tutorial
/* * Copyright (C) 2013 - 2014 Alexander "Evisceration" Martinz * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * */ package org.namelessrom.devicecontrol.activities; import android.app.Activity; import android.app.ActivityManager.TaskDescription; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Color; import android.os.Build; import android.os.Bundle; import android.support.annotation.NonNull; import android.support.annotation.Nullable; import android.support.design.widget.NavigationView; import android.support.v4.app.ActivityCompat; import android.support.v4.content.ContextCompat; import android.support.v4.content.LocalBroadcastManager; import android.support.v4.view.ViewCompat; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.text.TextUtils; import android.util.Log; import android.view.MenuItem; import android.view.View; import com.balysv.materialmenu.MaterialMenuDrawable; import com.balysv.materialmenu.extras.toolbar.MaterialMenuIconToolbar; import org.namelessrom.devicecontrol.R; import org.namelessrom.devicecontrol.theme.AppResources; import java.util.ArrayList; import java.util.Collection; import timber.log.Timber; public abstract class BaseActivity extends AppCompatActivity { private static final int REQ_PERMISSIONS = 1893; public static final String ACTION_REQUEST_PERMISSION = "action_request_permission"; public static final String EXTRA_PERMISSIONS = "extra_permissions"; protected MaterialMenuIconToolbar mMaterialMenu; protected NavigationView mNavigationView; protected MenuItem mPreviousMenuItem; public IntentFilter mLocalIntentFilter; protected void setupToolbar() { final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); if (toolbar != null) { setSupportActionBar(toolbar); ViewCompat.setElevation(toolbar, 4.0f); toolbar.setNavigationOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { finish(); } }); } final ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { actionBar.setDisplayHomeAsUpEnabled(true); } } protected void setupMaterialMenu(Activity activity) { mMaterialMenu = new MaterialMenuIconToolbar(activity, Color.WHITE, MaterialMenuDrawable.Stroke.THIN) { @Override public int getToolbarViewId() { return R.id.toolbar; } }; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { mMaterialMenu.setNeverDrawTouch(true); } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) { final AppResources res = AppResources.get(this); // WTF! IRIS506Q android version "unknown" try { getWindow().setStatusBarColor(res.getPrimaryColor()); } catch (Exception e) { Log.e("BaseActivity", "get a stone and throw it at your device vendor", e); } // color recents tab final Bitmap appIcon = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher_devicecontrol); final TaskDescription description = new TaskDescription(String.valueOf(getTitle()), appIcon, res.getAccentColor()); setTaskDescription(description); } } @Override protected void onPause() { super.onPause(); try { LocalBroadcastManager.getInstance(this).unregisterReceiver(mLocalBroadcastReceiver); } catch (Exception ignored) { } } @Override protected void onResume() { super.onResume(); LocalBroadcastManager.getInstance(this).registerReceiver(mLocalBroadcastReceiver, createIntentFilter()); } @Override protected void onPostCreate(final Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); if (mMaterialMenu != null) { mMaterialMenu.syncState(savedInstanceState); } } @Override protected void onSaveInstanceState(final Bundle outState) { if (mMaterialMenu != null) { mMaterialMenu.onSaveInstanceState(outState); } super.onSaveInstanceState(outState); } /** Searches and checks the {@link MenuItem} if found **/ public void checkMenuItem(final int menuId) { final MenuItem menuItem = findMenuItem(menuId); if (menuItem != null) { checkMenuItem(menuItem); } } /** Checks the {@link MenuItem} **/ public void checkMenuItem(@NonNull final MenuItem menuItem) { // to work around a bug in the design library we need to store the menu item and // uncheck it manually everytime we check a new item if (mPreviousMenuItem != null) { mPreviousMenuItem.setChecked(false); } menuItem.setChecked(true); mPreviousMenuItem = menuItem; if (mNavigationView != null) { mNavigationView.invalidate(); } } @Nullable public MenuItem findMenuItem(final int menuId) { return findMenuItem(mNavigationView, menuId); } @Nullable public MenuItem findMenuItem(@Nullable NavigationView navigationView, final int menuId) { if (navigationView == null || navigationView.getMenu() == null) { return null; } return navigationView.getMenu().findItem(menuId); } public boolean isGranted(String permission) { return isGranted(this, permission); } public static boolean isGranted(Context context, String permission) { return ContextCompat.checkSelfPermission(context, permission) == PackageManager.PERMISSION_GRANTED; } public void requestPermissions(Collection<String> permissions) { final String[] permissionsToRequest = permissions.toArray(new String[permissions.size()]); ActivityCompat.requestPermissions(this, permissionsToRequest, REQ_PERMISSIONS); } @Override public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { switch (requestCode) { case REQ_PERMISSIONS: { boolean grantedAll = true; if (grantResults.length > 0) { for (final int result : grantResults) { if (result == PackageManager.PERMISSION_DENIED) { grantedAll = false; } } } else { grantedAll = false; } Timber.d("Granted all permissions: %s", grantedAll); // TODO: show warning? return; } } super.onRequestPermissionsResult(requestCode, permissions, grantResults); } public final BroadcastReceiver mLocalBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { Timber.d("Received intent: %s", intent); if (intent == null) { return; } final String action = intent.getAction(); if (TextUtils.isEmpty(action)) { return; } switch (action) { case ACTION_REQUEST_PERMISSION: { final ArrayList<String> permissions = intent.getStringArrayListExtra(EXTRA_PERMISSIONS); if (permissions != null && permissions.size() > 0) { requestPermissions(permissions); } break; } } } }; public IntentFilter createIntentFilter() { if (mLocalIntentFilter == null) { mLocalIntentFilter = new IntentFilter(); mLocalIntentFilter.addAction(BaseActivity.ACTION_REQUEST_PERMISSION); } return mLocalIntentFilter; } }