packages/CompanionDeviceManager/src/com/android/companiondevicemanager/CompanionDeviceActivity.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2017 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.android.companiondevicemanager;

 import static android.companion.BluetoothDeviceFilterUtils.getDeviceMacAddress;
 import static android.text.TextUtils.emptyIfNull;
 import static android.text.TextUtils.isEmpty;
 import static android.text.TextUtils.withoutPrefix;
 import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;

 import static java.util.Objects.requireNonNull;

 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.app.Activity;
 import android.companion.AssociationRequest;
 import android.companion.CompanionDeviceManager;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.database.DataSetObserver;
 import android.graphics.Color;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.text.Html;
 import android.util.Log;
 import android.util.SparseArray;
 import android.util.TypedValue;
 import android.view.Gravity;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.BaseAdapter;
 import android.widget.ListView;
 import android.widget.ProgressBar;
 import android.widget.TextView;

 import com.android.companiondevicemanager.CompanionDeviceDiscoveryService.DeviceFilterPair;
 import com.android.internal.util.Preconditions;

 public class CompanionDeviceActivity extends Activity {

     private static final boolean DEBUG = false;
     private static final String LOG_TAG = CompanionDeviceActivity.class.getSimpleName();

     static CompanionDeviceActivity sInstance;

     View mLoadingIndicator = null;
     ListView mDeviceListView;
     private View mPairButton;
     private View mCancelButton;

     DevicesAdapter mDevicesAdapter;

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         Log.i(LOG_TAG, "Starting UI for " + getService().mRequest);

         if (getService().mDevicesFound.isEmpty()) {
             Log.e(LOG_TAG, "About to show UI, but no devices to show");
         }

         getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
         sInstance = this;

         String deviceProfile = getRequest().getDeviceProfile();
         String profilePrivacyDisclaimer = emptyIfNull(getRequest()
                 .getDeviceProfilePrivilegesDescription())
                 .replace("APP_NAME", getCallingAppName());
         boolean useDeviceProfile = deviceProfile != null && !isEmpty(profilePrivacyDisclaimer);
         String profileName = useDeviceProfile
                 ? getDeviceProfileName(deviceProfile)
                 : getString(R.string.profile_name_generic);

         if (getRequest().isSingleDevice()) {
             setContentView(R.layout.device_confirmation);
             final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0);
             setTitle(Html.fromHtml(getString(
                     R.string.confirmation_title,
                     Html.escapeHtml(getCallingAppName()),
                     Html.escapeHtml(selectedDevice.getDisplayName())), 0));

             mPairButton = findViewById(R.id.button_pair);
             mPairButton.setOnClickListener(v -> onDeviceConfirmed(getService().mSelectedDevice));
             getService().mSelectedDevice = selectedDevice;
             onSelectionUpdate();
             if (getRequest().isSkipPrompt()) {
                 onDeviceConfirmed(selectedDevice);
             }
         } else {
             setContentView(R.layout.device_chooser);
             mPairButton = findViewById(R.id.button_pair);
             mPairButton.setVisibility(View.GONE);
             setTitle(Html.fromHtml(getString(R.string.chooser_title,
                     Html.escapeHtml(profileName),
                     Html.escapeHtml(getCallingAppName())), 0));
             mDeviceListView = findViewById(R.id.device_list);
             mDevicesAdapter = new DevicesAdapter();
             mDeviceListView.setAdapter(mDevicesAdapter);
             mDeviceListView.setOnItemClickListener((adapterView, view, pos, l) -> {
                 getService().mSelectedDevice =
                         (DeviceFilterPair) adapterView.getItemAtPosition(pos);
                 mDevicesAdapter.notifyDataSetChanged();
             });
             mDevicesAdapter.registerDataSetObserver(new DataSetObserver() {
                 @Override
                 public void onChanged() {
                     onSelectionUpdate();
                 }
             });
             mDeviceListView.addFooterView(mLoadingIndicator = getProgressBar(), null, false);
         }

         TextView profileSummary = findViewById(R.id.profile_summary);

         if (useDeviceProfile) {
             profileSummary.setVisibility(View.VISIBLE);
             String deviceRef = getRequest().isSingleDevice()
                     ? getService().mDevicesFound.get(0).getDisplayName()
                     : profileName;
             profileSummary.setText(getString(R.string.profile_summary,
                     deviceRef,
                     profilePrivacyDisclaimer));
         } else {
             profileSummary.setVisibility(View.GONE);
         }

         getService().mActivity = this;

         mCancelButton = findViewById(R.id.button_cancel);
         mCancelButton.setOnClickListener(v -> cancel());
     }

     static void notifyDevicesChanged() {
         if (sInstance != null && sInstance.mDevicesAdapter != null && !sInstance.isFinishing()) {
             sInstance.mDevicesAdapter.notifyDataSetChanged();
         }
     }

     private AssociationRequest getRequest() {
         return getService().mRequest;
     }

     private String getDeviceProfileName(@Nullable String deviceProfile) {
         if (deviceProfile == null) {
             return getString(R.string.profile_name_generic);
         }
         switch (deviceProfile) {
             case AssociationRequest.DEVICE_PROFILE_WATCH: {
                 return getString(R.string.profile_name_watch);
             }
             default: {
                 Log.w(LOG_TAG,
                         "No localized profile name found for device profile: " + deviceProfile);
                 return withoutPrefix("android.app.role.COMPANION_DEVICE_", deviceProfile)
                         .toLowerCase()
                         .replace('_', ' ');
             }
         }
     }

     private void cancel() {
         Log.i(LOG_TAG, "cancel()");
         getService().onCancel();
         setResult(RESULT_CANCELED);
         finish();
     }

     @Override
     protected void onStop() {
         super.onStop();
         if (!isFinishing() && !isChangingConfigurations()) {
             Log.i(LOG_TAG, "onStop() - cancelling");
             cancel();
         }
     }

     @Override
     protected void onDestroy() {
         super.onDestroy();
         if (sInstance == this) {
             sInstance = null;
         }
     }

     private CharSequence getCallingAppName() {
         try {
             final PackageManager packageManager = getPackageManager();
             String callingPackage = Preconditions.checkStringNotEmpty(
                     getCallingPackage(),
                     "This activity must be called for result");
             return packageManager.getApplicationLabel(
                     packageManager.getApplicationInfo(callingPackage, 0));
         } catch (PackageManager.NameNotFoundException e) {
             throw new RuntimeException(e);
         }
     }

     @Override
     public String getCallingPackage() {
         return requireNonNull(getRequest().getCallingPackage());
     }

     @Override
     public void setTitle(CharSequence title) {
         final TextView titleView = findViewById(R.id.title);
         final int padding = getPadding(getResources());
         titleView.setPadding(padding, padding, padding, padding);
         titleView.setText(title);
     }

     private ProgressBar getProgressBar() {
         final ProgressBar progressBar = new ProgressBar(this);
         progressBar.setForegroundGravity(Gravity.CENTER_HORIZONTAL);
         final int padding = getPadding(getResources());
         progressBar.setPadding(padding, padding, padding, padding);
         return progressBar;
     }

     static int getPadding(Resources r) {
         return r.getDimensionPixelSize(R.dimen.padding);
     }

     private void onSelectionUpdate() {
         DeviceFilterPair selectedDevice = getService().mSelectedDevice;
         if (mPairButton.getVisibility() != View.VISIBLE && selectedDevice != null) {
             onDeviceConfirmed(selectedDevice);
         } else {
             mPairButton.setEnabled(selectedDevice != null);
         }
     }

     private CompanionDeviceDiscoveryService getService() {
         return CompanionDeviceDiscoveryService.sInstance;
     }

     protected void onDeviceConfirmed(DeviceFilterPair selectedDevice) {
         Log.i(LOG_TAG, "onDeviceConfirmed(selectedDevice = " + selectedDevice + ")");
         getService().onDeviceSelected(
                 getCallingPackage(), getDeviceMacAddress(selectedDevice.device));
         setResult(RESULT_OK,
                 new Intent().putExtra(CompanionDeviceManager.EXTRA_DEVICE, selectedDevice.device));
         finish();
     }

     class DevicesAdapter extends BaseAdapter {
         private final Drawable mBluetoothIcon = icon(android.R.drawable.stat_sys_data_bluetooth);
         private final Drawable mWifiIcon = icon(com.android.internal.R.drawable.ic_wifi_signal_3);

         private SparseArray<Integer> mColors = new SparseArray();

         private Drawable icon(int drawableRes) {
             Drawable icon = getResources().getDrawable(drawableRes, null);
             icon.setTint(Color.DKGRAY);
             return icon;
         }

         @Override
         public View getView(
                 int position,
                 @Nullable View convertView,
                 @NonNull ViewGroup parent) {
             TextView view = convertView instanceof TextView
                     ? (TextView) convertView
                     : newView();
             bind(view, getItem(position));
             return view;
         }

         private void bind(TextView textView, DeviceFilterPair device) {
             textView.setText(device.getDisplayName());
             textView.setBackgroundColor(
                     device.equals(getService().mSelectedDevice)
                             ? getColor(android.R.attr.colorControlHighlight)
                             : Color.TRANSPARENT);
             textView.setCompoundDrawablesWithIntrinsicBounds(
                     device.device instanceof android.net.wifi.ScanResult
                             ? mWifiIcon
                             : mBluetoothIcon,
                     null, null, null);
             textView.getCompoundDrawables()[0].setTint(getColor(android.R.attr.colorForeground));
         }

         private TextView newView() {
             final TextView textView = new TextView(CompanionDeviceActivity.this);
             textView.setTextColor(getColor(android.R.attr.colorForeground));
             final int padding = CompanionDeviceActivity.getPadding(getResources());
             textView.setPadding(padding, padding, padding, padding);
             textView.setCompoundDrawablePadding(padding);
             return textView;
         }

         private int getColor(int colorAttr) {
             if (mColors.contains(colorAttr)) {
                 return mColors.get(colorAttr);
             }
             TypedValue typedValue = new TypedValue();
             TypedArray a = obtainStyledAttributes(typedValue.data, new int[] { colorAttr });
             int result = a.getColor(0, 0);
             a.recycle();
             mColors.put(colorAttr, result);
             return result;
         }

         @Override
         public int getCount() {
             return getService().mDevicesFound.size();
         }

         @Override
         public DeviceFilterPair getItem(int position) {
             return getService().mDevicesFound.get(position);
         }

         @Override
         public long getItemId(int position) {
             return position;
         }
     }
 }
	/*
	* Copyright (C) 2017 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.android.companiondevicemanager;

	import static android.companion.BluetoothDeviceFilterUtils.getDeviceMacAddress;
	import static android.text.TextUtils.emptyIfNull;
	import static android.text.TextUtils.isEmpty;
	import static android.text.TextUtils.withoutPrefix;
	import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;

	import static java.util.Objects.requireNonNull;

	import android.annotation.NonNull;
	import android.annotation.Nullable;
	import android.app.Activity;
	import android.companion.AssociationRequest;
	import android.companion.CompanionDeviceManager;
	import android.content.Intent;
	import android.content.pm.PackageManager;
	import android.content.res.Resources;
	import android.content.res.TypedArray;
	import android.database.DataSetObserver;
	import android.graphics.Color;
	import android.graphics.drawable.Drawable;
	import android.os.Bundle;
	import android.text.Html;
	import android.util.Log;
	import android.util.SparseArray;
	import android.util.TypedValue;
	import android.view.Gravity;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.BaseAdapter;
	import android.widget.ListView;
	import android.widget.ProgressBar;
	import android.widget.TextView;

	import com.android.companiondevicemanager.CompanionDeviceDiscoveryService.DeviceFilterPair;
	import com.android.internal.util.Preconditions;

	public class CompanionDeviceActivity extends Activity {

	private static final boolean DEBUG = false;
	private static final String LOG_TAG = CompanionDeviceActivity.class.getSimpleName();

	static CompanionDeviceActivity sInstance;

	View mLoadingIndicator = null;
	ListView mDeviceListView;
	private View mPairButton;
	private View mCancelButton;

	DevicesAdapter mDevicesAdapter;

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	Log.i(LOG_TAG, "Starting UI for " + getService().mRequest);

	if (getService().mDevicesFound.isEmpty()) {
	Log.e(LOG_TAG, "About to show UI, but no devices to show");
	}

	getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
	sInstance = this;

	String deviceProfile = getRequest().getDeviceProfile();
	String profilePrivacyDisclaimer = emptyIfNull(getRequest()
	.getDeviceProfilePrivilegesDescription())
	.replace("APP_NAME", getCallingAppName());
	boolean useDeviceProfile = deviceProfile != null && !isEmpty(profilePrivacyDisclaimer);
	String profileName = useDeviceProfile
	? getDeviceProfileName(deviceProfile)
	: getString(R.string.profile_name_generic);

	if (getRequest().isSingleDevice()) {
	setContentView(R.layout.device_confirmation);
	final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0);
	setTitle(Html.fromHtml(getString(
	R.string.confirmation_title,
	Html.escapeHtml(getCallingAppName()),
	Html.escapeHtml(selectedDevice.getDisplayName())), 0));

	mPairButton = findViewById(R.id.button_pair);
	mPairButton.setOnClickListener(v -> onDeviceConfirmed(getService().mSelectedDevice));
	getService().mSelectedDevice = selectedDevice;
	onSelectionUpdate();
	if (getRequest().isSkipPrompt()) {
	onDeviceConfirmed(selectedDevice);
	}
	} else {
	setContentView(R.layout.device_chooser);
	mPairButton = findViewById(R.id.button_pair);
	mPairButton.setVisibility(View.GONE);
	setTitle(Html.fromHtml(getString(R.string.chooser_title,
	Html.escapeHtml(profileName),
	Html.escapeHtml(getCallingAppName())), 0));
	mDeviceListView = findViewById(R.id.device_list);
	mDevicesAdapter = new DevicesAdapter();
	mDeviceListView.setAdapter(mDevicesAdapter);
	mDeviceListView.setOnItemClickListener((adapterView, view, pos, l) -> {
	getService().mSelectedDevice =
	(DeviceFilterPair) adapterView.getItemAtPosition(pos);
	mDevicesAdapter.notifyDataSetChanged();
	});
	mDevicesAdapter.registerDataSetObserver(new DataSetObserver() {
	@Override
	public void onChanged() {
	onSelectionUpdate();
	}
	});
	mDeviceListView.addFooterView(mLoadingIndicator = getProgressBar(), null, false);
	}

	TextView profileSummary = findViewById(R.id.profile_summary);

	if (useDeviceProfile) {
	profileSummary.setVisibility(View.VISIBLE);
	String deviceRef = getRequest().isSingleDevice()
	? getService().mDevicesFound.get(0).getDisplayName()
	: profileName;
	profileSummary.setText(getString(R.string.profile_summary,
	deviceRef,
	profilePrivacyDisclaimer));
	} else {
	profileSummary.setVisibility(View.GONE);
	}

	getService().mActivity = this;

	mCancelButton = findViewById(R.id.button_cancel);
	mCancelButton.setOnClickListener(v -> cancel());
	}

	static void notifyDevicesChanged() {
	if (sInstance != null && sInstance.mDevicesAdapter != null && !sInstance.isFinishing()) {
	sInstance.mDevicesAdapter.notifyDataSetChanged();
	}
	}

	private AssociationRequest getRequest() {
	return getService().mRequest;
	}

	private String getDeviceProfileName(@Nullable String deviceProfile) {
	if (deviceProfile == null) {
	return getString(R.string.profile_name_generic);
	}
	switch (deviceProfile) {
	case AssociationRequest.DEVICE_PROFILE_WATCH: {
	return getString(R.string.profile_name_watch);
	}
	default: {
	Log.w(LOG_TAG,
	"No localized profile name found for device profile: " + deviceProfile);
	return withoutPrefix("android.app.role.COMPANION_DEVICE_", deviceProfile)
	.toLowerCase()
	.replace('_', ' ');
	}
	}
	}

	private void cancel() {
	Log.i(LOG_TAG, "cancel()");
	getService().onCancel();
	setResult(RESULT_CANCELED);
	finish();
	}

	@Override
	protected void onStop() {
	super.onStop();
	if (!isFinishing() && !isChangingConfigurations()) {
	Log.i(LOG_TAG, "onStop() - cancelling");
	cancel();
	}
	}

	@Override
	protected void onDestroy() {
	super.onDestroy();
	if (sInstance == this) {
	sInstance = null;
	}
	}

	private CharSequence getCallingAppName() {
	try {
	final PackageManager packageManager = getPackageManager();
	String callingPackage = Preconditions.checkStringNotEmpty(
	getCallingPackage(),
	"This activity must be called for result");
	return packageManager.getApplicationLabel(
	packageManager.getApplicationInfo(callingPackage, 0));
	} catch (PackageManager.NameNotFoundException e) {
	throw new RuntimeException(e);
	}
	}

	@Override
	public String getCallingPackage() {
	return requireNonNull(getRequest().getCallingPackage());
	}

	@Override
	public void setTitle(CharSequence title) {
	final TextView titleView = findViewById(R.id.title);
	final int padding = getPadding(getResources());
	titleView.setPadding(padding, padding, padding, padding);
	titleView.setText(title);
	}

	private ProgressBar getProgressBar() {
	final ProgressBar progressBar = new ProgressBar(this);
	progressBar.setForegroundGravity(Gravity.CENTER_HORIZONTAL);
	final int padding = getPadding(getResources());
	progressBar.setPadding(padding, padding, padding, padding);
	return progressBar;
	}

	static int getPadding(Resources r) {
	return r.getDimensionPixelSize(R.dimen.padding);
	}

	private void onSelectionUpdate() {
	DeviceFilterPair selectedDevice = getService().mSelectedDevice;
	if (mPairButton.getVisibility() != View.VISIBLE && selectedDevice != null) {
	onDeviceConfirmed(selectedDevice);
	} else {
	mPairButton.setEnabled(selectedDevice != null);
	}
	}

	private CompanionDeviceDiscoveryService getService() {
	return CompanionDeviceDiscoveryService.sInstance;
	}

	protected void onDeviceConfirmed(DeviceFilterPair selectedDevice) {
	Log.i(LOG_TAG, "onDeviceConfirmed(selectedDevice = " + selectedDevice + ")");
	getService().onDeviceSelected(
	getCallingPackage(), getDeviceMacAddress(selectedDevice.device));
	setResult(RESULT_OK,
	new Intent().putExtra(CompanionDeviceManager.EXTRA_DEVICE, selectedDevice.device));
	finish();
	}

	class DevicesAdapter extends BaseAdapter {
	private final Drawable mBluetoothIcon = icon(android.R.drawable.stat_sys_data_bluetooth);
	private final Drawable mWifiIcon = icon(com.android.internal.R.drawable.ic_wifi_signal_3);

	private SparseArray<Integer> mColors = new SparseArray();

	private Drawable icon(int drawableRes) {
	Drawable icon = getResources().getDrawable(drawableRes, null);
	icon.setTint(Color.DKGRAY);
	return icon;
	}

	@Override
	public View getView(
	int position,
	@Nullable View convertView,
	@NonNull ViewGroup parent) {
	TextView view = convertView instanceof TextView
	? (TextView) convertView
	: newView();
	bind(view, getItem(position));
	return view;
	}

	private void bind(TextView textView, DeviceFilterPair device) {
	textView.setText(device.getDisplayName());
	textView.setBackgroundColor(
	device.equals(getService().mSelectedDevice)
	? getColor(android.R.attr.colorControlHighlight)
	: Color.TRANSPARENT);
	textView.setCompoundDrawablesWithIntrinsicBounds(
	device.device instanceof android.net.wifi.ScanResult
	? mWifiIcon
	: mBluetoothIcon,
	null, null, null);
	textView.getCompoundDrawables()[0].setTint(getColor(android.R.attr.colorForeground));
	}

	private TextView newView() {
	final TextView textView = new TextView(CompanionDeviceActivity.this);
	textView.setTextColor(getColor(android.R.attr.colorForeground));
	final int padding = CompanionDeviceActivity.getPadding(getResources());
	textView.setPadding(padding, padding, padding, padding);
	textView.setCompoundDrawablePadding(padding);
	return textView;
	}

	private int getColor(int colorAttr) {
	if (mColors.contains(colorAttr)) {
	return mColors.get(colorAttr);
	}
	TypedValue typedValue = new TypedValue();
	TypedArray a = obtainStyledAttributes(typedValue.data, new int[] { colorAttr });
	int result = a.getColor(0, 0);
	a.recycle();
	mColors.put(colorAttr, result);
	return result;
	}

	@Override
	public int getCount() {
	return getService().mDevicesFound.size();
	}

	@Override
	public DeviceFilterPair getItem(int position) {
	return getService().mDevicesFound.get(position);
	}

	@Override
	public long getItemId(int position) {
	return position;
	}
	}
	}