Show QR Code picture for WiFi sharing (74145436) · Commits · e / os / android_packages_apps_Settings

res/layout/wifi_dpp_qrcode_generator_fragment.xml

+4 −3

Original line number	Diff line number	Diff line
		@@ -25,9 +25,10 @@
		<include layout="@layout/wifi_dpp_fragment_header"/>

		<ImageView
		android:id="@+id/barcode_view"
		android:layout_width="match_parent"
		android:layout_height="match_parent"
		android:id="@+id/qrcode_view"
		android:layout_width="@dimen/qrcode_size"
		android:layout_height="@dimen/qrcode_size"
		android:src="@android:color/transparent"
		android:layout_gravity="center"/>

		</LinearLayout>

res/values/dimens.xml

+3 −0

Original line number	Diff line number	Diff line
		@@ -366,4 +366,7 @@
		<dimen name="homepage_condition_header_icon_width_height">24dp</dimen>
		<dimen name="homepage_condition_header_icon_margin_end">24dp</dimen>

		<!-- QR code picture size -->
		<dimen name="qrcode_size">264dp</dimen>

		</resources>

src/com/android/settings/wifi/details/WifiDetailPreferenceController.java

+2 −2

Original line number	Diff line number	Diff line
		@@ -549,8 +549,8 @@ public class WifiDetailPreferenceController extends AbstractPreferenceController
		* Show QR code to share the network represented by this preference.
		*/
		public void launchQRCodeGenerator() {
		Intent intent = WifiDppUtils.getConfiguratorQrCodeGeneratorIntent(mAccessPoint.getSsidStr(),
		mAccessPoint.getSecurityString(/* concise */ false));
		Intent intent = WifiDppUtils.getConfiguratorQrCodeGeneratorIntent(mContext, mWifiManager,
		mAccessPoint);
		mContext.startActivity(intent);
		}

src/com/android/settings/wifi/dpp/WifiDppQrCodeGeneratorFragment.java

+32 −0

Original line number	Diff line number	Diff line
		@@ -18,19 +18,31 @@ package com.android.settings.wifi.dpp;

		import android.app.ActionBar;
		import android.content.Context;
		import android.graphics.Bitmap;
		import android.os.Bundle;
		import android.util.Log;
		import android.view.Menu;
		import android.view.MenuInflater;
		import android.view.MenuItem;
		import android.view.View;
		import android.widget.ImageView;

		import com.android.internal.logging.nano.MetricsProto;
		import com.android.settings.R;
		import com.android.settings.wifi.qrcode.QrCodeGenerator;

		import com.google.zxing.WriterException;

		/**
		* After sharing a saved Wi-Fi network, {@code WifiDppConfiguratorActivity} start with this fragment
		* to generate a Wi-Fi DPP QR code for other device to initiate as an enrollee.
		*/
		public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment {
		private static final String TAG = "WifiDppQrCodeGeneratorFragment";

		private ImageView mQrCodeView;
		private String mQrCode;

		@Override
		protected int getLayout() {
		return R.layout.wifi_dpp_qrcode_generator_fragment;
		@@ -67,6 +79,9 @@ public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment {
		actionBar.setDisplayHomeAsUpEnabled(true);
		actionBar.show();
		}

		mQrCode = wifiNetworkConfig.getQrCode();
		setQrCode();
		}

		@Override
		@@ -102,4 +117,21 @@ public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment {
		return super.onOptionsItemSelected(menuItem);
		}
		}

		@Override
		public void onViewCreated(View view, Bundle savedInstanceState) {
		super.onViewCreated(view, savedInstanceState);
		mQrCodeView = view.findViewById(R.id.qrcode_view);
		}

		private void setQrCode() {
		try {
		final int qrcodeSize = getContext().getResources().getDimensionPixelSize(
		R.dimen.qrcode_size);
		final Bitmap bmp = QrCodeGenerator.encodeQrCode(mQrCode, qrcodeSize);
		mQrCodeView.setImageBitmap(bmp);
		} catch (WriterException e) {
		Log.e(TAG, "Error generatting QR code bitmap " + e);
		}
		}
		}

src/com/android/settings/wifi/dpp/WifiDppUtils.java

+72 −8

Original line number	Diff line number	Diff line
		@@ -18,9 +18,15 @@ package com.android.settings.wifi.dpp;

		import android.content.Context;
		import android.content.Intent;
		import android.net.wifi.WifiConfiguration;
		import android.net.wifi.WifiManager;
		import android.text.TextUtils;
		import android.util.FeatureFlagUtils;

		import com.android.settingslib.wifi.AccessPoint;

		import java.util.List;

		/**
		* Here are the items shared by both WifiDppConfiguratorActivity & WifiDppEnrolleeActivity
		*/
		@@ -84,23 +90,81 @@ public class WifiDppUtils {
		return intent;
		}

		private static String getPresharedKey(WifiManager wifiManager, WifiConfiguration config) {
		String preSharedKey = config.preSharedKey;

		final List<WifiConfiguration> wifiConfigs = wifiManager.getPrivilegedConfiguredNetworks();
		for (WifiConfiguration wifiConfig : wifiConfigs) {
		if (wifiConfig.networkId == config.networkId) {
		preSharedKey = wifiConfig.preSharedKey;
		break;
		}
		}

		return preSharedKey;
		}

		private static String removeFirstAndLastDoubleQuotes(String str) {
		if (TextUtils.isEmpty(str)) {
		return str;
		}

		int begin = 0;
		int end = str.length() - 1;
		if (str.charAt(begin) == '\"') {
		begin++;
		}
		if (str.charAt(end) == '\"') {
		end--;
		}
		return str.substring(begin, end+1);
		}

		private static String getSecurityString(AccessPoint accessPoint) {
		switch(accessPoint.getSecurity()) {
		case AccessPoint.SECURITY_WEP:
		return "WEP";
		case AccessPoint.SECURITY_PSK:
		return "WPA";
		default:
		return "nopass";
		}
		}

		/**
		* Returns an intent to launch QR code generator.
		*
		* @param ssid The data corresponding to {@code WifiConfiguration} SSID
		* @param Security The data is from {@code AccessPoint.securityToString}
		* @param context The context to use for the content resolver
		* @param wifiManager An instance of {@link WifiManager}
		* @param accessPoint An instance of {@link AccessPoint}
		* @return Intent for launching QR code generator
		*/
		public static Intent getConfiguratorQrCodeGeneratorIntent(String ssid, String Security) {
		//TODO: b/118794858#comment6 should put password & hideSsid in intent extra
		final Intent intent = new Intent(
		WifiDppConfiguratorActivity.ACTION_CONFIGURATOR_QR_CODE_GENERATOR);
		public static Intent getConfiguratorQrCodeGeneratorIntent(Context context,
		WifiManager wifiManager, AccessPoint accessPoint) {
		final Intent intent = new Intent(context, WifiDppConfiguratorActivity.class);
		intent.setAction(WifiDppConfiguratorActivity.ACTION_CONFIGURATOR_QR_CODE_GENERATOR);

		final WifiConfiguration wifiConfig = accessPoint.getConfig();
		final String ssid = removeFirstAndLastDoubleQuotes(wifiConfig.SSID);
		final String security = getSecurityString(accessPoint);
		String preSharedKey = wifiConfig.preSharedKey;

		if (preSharedKey != null) {
		// When the value of this key is read, the actual key is not returned, just a "*".
		// Call privileged system API to obtain actual key.
		preSharedKey = removeFirstAndLastDoubleQuotes(getPresharedKey(wifiManager, wifiConfig));
		}

		if (!TextUtils.isEmpty(ssid)) {
		intent.putExtra(EXTRA_WIFI_SSID, ssid);
		}
		if (!TextUtils.isEmpty(Security)) {
		intent.putExtra(EXTRA_WIFI_SECURITY, Security);
		if (!TextUtils.isEmpty(security)) {
		intent.putExtra(EXTRA_WIFI_SECURITY, security);
		}
		if (!TextUtils.isEmpty(preSharedKey)) {
		intent.putExtra(EXTRA_WIFI_PRE_SHARED_KEY, preSharedKey);
		}

		return intent;
		}
		}