1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.companiondevicemanager; 18 19 import static android.companion.BluetoothDeviceFilterUtils.getDeviceMacAddress; 20 21 import android.app.Activity; 22 import android.companion.CompanionDeviceManager; 23 import android.content.Intent; 24 import android.content.pm.PackageManager; 25 import android.content.res.Resources; 26 import android.database.DataSetObserver; 27 import android.os.Bundle; 28 import android.text.Html; 29 import android.util.Log; 30 import android.view.Gravity; 31 import android.view.View; 32 import android.widget.ListView; 33 import android.widget.ProgressBar; 34 import android.widget.TextView; 35 36 import com.android.companiondevicemanager.DeviceDiscoveryService.DeviceFilterPair; 37 import com.android.internal.util.Preconditions; 38 39 public class DeviceChooserActivity extends Activity { 40 41 private static final boolean DEBUG = false; 42 private static final String LOG_TAG = "DeviceChooserActivity"; 43 44 View mLoadingIndicator = null; 45 ListView mDeviceListView; 46 private View mPairButton; 47 private View mCancelButton; 48 49 @Override onCreate(Bundle savedInstanceState)50 public void onCreate(Bundle savedInstanceState) { 51 super.onCreate(savedInstanceState); 52 53 if (DEBUG) Log.i(LOG_TAG, "Started with intent " + getIntent()); 54 55 if (getService().mDevicesFound.isEmpty()) { 56 Log.e(LOG_TAG, "About to show UI, but no devices to show"); 57 } 58 59 if (getService().mRequest.isSingleDevice()) { 60 setContentView(R.layout.device_confirmation); 61 final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0); 62 setTitle(Html.fromHtml(getString( 63 R.string.confirmation_title, 64 getCallingAppName(), 65 selectedDevice.getDisplayName()), 0)); 66 mPairButton = findViewById(R.id.button_pair); 67 mPairButton.setOnClickListener(v -> onDeviceConfirmed(getService().mSelectedDevice)); 68 getService().mSelectedDevice = selectedDevice; 69 onSelectionUpdate(); 70 } else { 71 setContentView(R.layout.device_chooser); 72 mPairButton = findViewById(R.id.button_pair); 73 mPairButton.setVisibility(View.GONE); 74 setTitle(Html.fromHtml(getString(R.string.chooser_title, getCallingAppName()), 0)); 75 mDeviceListView = findViewById(R.id.device_list); 76 final DeviceDiscoveryService.DevicesAdapter adapter = getService().mDevicesAdapter; 77 mDeviceListView.setAdapter(adapter); 78 adapter.registerDataSetObserver(new DataSetObserver() { 79 @Override 80 public void onChanged() { 81 onSelectionUpdate(); 82 } 83 }); 84 mDeviceListView.addFooterView(mLoadingIndicator = getProgressBar(), null, false); 85 } 86 getService().mActivity = this; 87 88 mCancelButton = findViewById(R.id.button_cancel); 89 mCancelButton.setOnClickListener(v -> cancel()); 90 } 91 cancel()92 private void cancel() { 93 getService().onCancel(); 94 setResult(RESULT_CANCELED); 95 finish(); 96 } 97 98 @Override onStop()99 protected void onStop() { 100 super.onStop(); 101 if (!isFinishing() && !isChangingConfigurations()) { 102 cancel(); 103 } 104 } 105 getCallingAppName()106 private CharSequence getCallingAppName() { 107 try { 108 final PackageManager packageManager = getPackageManager(); 109 String callingPackage = Preconditions.checkStringNotEmpty( 110 getCallingPackage(), 111 "This activity must be called for result"); 112 return packageManager.getApplicationLabel( 113 packageManager.getApplicationInfo(callingPackage, 0)); 114 } catch (PackageManager.NameNotFoundException e) { 115 throw new RuntimeException(e); 116 } 117 } 118 119 @Override setTitle(CharSequence title)120 public void setTitle(CharSequence title) { 121 final TextView titleView = findViewById(R.id.title); 122 final int padding = getPadding(getResources()); 123 titleView.setPadding(padding, padding, padding, padding); 124 titleView.setText(title); 125 } 126 127 //TODO put in resources xmls getProgressBar()128 private ProgressBar getProgressBar() { 129 final ProgressBar progressBar = new ProgressBar(this); 130 progressBar.setForegroundGravity(Gravity.CENTER_HORIZONTAL); 131 final int padding = getPadding(getResources()); 132 progressBar.setPadding(padding, padding, padding, padding); 133 return progressBar; 134 } 135 getPadding(Resources r)136 static int getPadding(Resources r) { 137 return r.getDimensionPixelSize(R.dimen.padding); 138 } 139 onSelectionUpdate()140 private void onSelectionUpdate() { 141 DeviceFilterPair selectedDevice = getService().mSelectedDevice; 142 if (mPairButton.getVisibility() != View.VISIBLE && selectedDevice != null) { 143 onDeviceConfirmed(selectedDevice); 144 } else { 145 mPairButton.setEnabled(selectedDevice != null); 146 } 147 } 148 getService()149 private DeviceDiscoveryService getService() { 150 return DeviceDiscoveryService.sInstance; 151 } 152 onDeviceConfirmed(DeviceFilterPair selectedDevice)153 protected void onDeviceConfirmed(DeviceFilterPair selectedDevice) { 154 getService().onDeviceSelected( 155 getCallingPackage(), getDeviceMacAddress(selectedDevice.device)); 156 setResult(RESULT_OK, 157 new Intent().putExtra(CompanionDeviceManager.EXTRA_DEVICE, selectedDevice.device)); 158 finish(); 159 } 160 }