| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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.example.android.bluetoothadvertisements; |
| |
| import android.bluetooth.BluetoothAdapter; |
| import android.bluetooth.BluetoothManager; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.os.Bundle; |
| import android.support.v4.app.FragmentActivity; |
| import android.support.v4.app.FragmentTransaction; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| /** |
| * Setup display fragments and ensure the device supports Bluetooth. |
| */ |
| public class MainActivity extends FragmentActivity { |
| |
| private BluetoothAdapter mBluetoothAdapter; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| setContentView(R.layout.activity_main); |
| setTitle(R.string.activity_main_title); |
| |
| if (savedInstanceState == null) { |
| |
| mBluetoothAdapter = ((BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE)) |
| .getAdapter(); |
| |
| // Is Bluetooth supported on this device? |
| if (mBluetoothAdapter != null) { |
| |
| // Is Bluetooth turned on? |
| if (mBluetoothAdapter.isEnabled()) { |
| |
| // Are Bluetooth Advertisements supported on this device? |
| if (mBluetoothAdapter.isMultipleAdvertisementSupported()) { |
| |
| // Everything is supported and enabled, load the fragments. |
| setupFragments(); |
| |
| } else { |
| |
| // Bluetooth Advertisements are not supported. |
| showErrorText(R.string.bt_ads_not_supported); |
| } |
| } else { |
| |
| // Prompt user to turn on Bluetooth (logic continues in onActivityResult()). |
| Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); |
| startActivityForResult(enableBtIntent, Constants.REQUEST_ENABLE_BT); |
| } |
| } else { |
| |
| // Bluetooth is not supported. |
| showErrorText(R.string.bt_not_supported); |
| } |
| } |
| } |
| |
| @Override |
| protected void onActivityResult(int requestCode, int resultCode, Intent data) { |
| super.onActivityResult(requestCode, resultCode, data); |
| switch (requestCode) { |
| case Constants.REQUEST_ENABLE_BT: |
| |
| if (resultCode == RESULT_OK) { |
| |
| // Bluetooth is now Enabled, are Bluetooth Advertisements supported on |
| // this device? |
| if (mBluetoothAdapter.isMultipleAdvertisementSupported()) { |
| |
| // Everything is supported and enabled, load the fragments. |
| setupFragments(); |
| |
| } else { |
| |
| // Bluetooth Advertisements are not supported. |
| showErrorText(R.string.bt_ads_not_supported); |
| } |
| } else { |
| |
| // User declined to enable Bluetooth, exit the app. |
| Toast.makeText(this, R.string.bt_not_enabled_leaving, |
| Toast.LENGTH_SHORT).show(); |
| finish(); |
| } |
| |
| default: |
| super.onActivityResult(requestCode, resultCode, data); |
| } |
| } |
| |
| private void setupFragments() { |
| FragmentTransaction transaction = getSupportFragmentManager().beginTransaction(); |
| |
| ScannerFragment scannerFragment = new ScannerFragment(); |
| // Fragments can't access system services directly, so pass it the BluetoothAdapter |
| scannerFragment.setBluetoothAdapter(mBluetoothAdapter); |
| transaction.replace(R.id.scanner_fragment_container, scannerFragment); |
| |
| AdvertiserFragment advertiserFragment = new AdvertiserFragment(); |
| transaction.replace(R.id.advertiser_fragment_container, advertiserFragment); |
| |
| transaction.commit(); |
| } |
| |
| private void showErrorText(int messageId) { |
| |
| TextView view = (TextView) findViewById(R.id.error_textview); |
| view.setText(getString(messageId)); |
| } |
| } |