Framework: Add NFC Tile to Quick Settings (2 of 2)

Need to figure out how to instantiate a new NFC adapter after the
Tile is created.

Change-Id: I5ad99f1ac8f4730653c9697c2c0d0e86b7d4facd

packages/SystemUI/res/values/strings.xml

@@ -542,6 +542,7 @@
     <string name="quick_settings_report_bug">Report bug</string>
     <string name="quick_settings_sync">Sync</string>
     <string name="quick_settings_torch">Torch</string>
+    <string name="quick_settings_nfc">NFC</string>
 
     <!-- Text to display next to the minimal graphical battery meter.  [CHAR LIMIT=3] -->
     <string name="status_bar_settings_battery_meter_min_format" translatable="false">

packages/SystemUI/src/com/android/systemui/quicksettings/NfcTile.java

@@ -0,0 +1,103 @@
+package com.android.systemui.quicksettings;
+
+import android.content.Context;
+import android.content.Intent;
+import android.nfc.NfcAdapter;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+
+import com.android.systemui.R;
+import com.android.systemui.statusbar.phone.QuickSettingsContainerView;
+import com.android.systemui.statusbar.phone.QuickSettingsController;
+
+
+public class NfcTile extends QuickSettingsTile {
+
+    private static String TAG = "NfcTile";
+    private static NfcAdapter mNfcAdapter;
+    private static final int NFC_ADAPTER_UNKNOWN = -100;
+
+    public NfcTile(Context context, LayoutInflater inflater,
+            QuickSettingsContainerView container,
+            QuickSettingsController qsc) {
+        super(context, inflater, container, qsc);
+
+        setState(NFC_ADAPTER_UNKNOWN);
+
+        mOnClick = new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                toggleState();
+                applyNfcChanges();
+            }
+        };
+
+        mOnLongClick = new View.OnLongClickListener() {
+            @Override
+            public boolean onLongClick(View v) {
+                Intent intent = new Intent("android.settings.NFC_SETTINGS");
+                intent.addCategory(Intent.CATEGORY_DEFAULT);
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                startSettingsActivity(intent);
+                return true;
+            }
+        };
+
+        qsc.registerAction(NfcAdapter.ACTION_ADAPTER_STATE_CHANGED, this);
+    }
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        applyNfcChanges();
+    }
+
+    private void applyNfcChanges() {
+        updateTileState();
+        updateQuickSettings();
+    }
+
+    protected void toggleState() {
+        int state = getNfcState();
+        switch (state) {
+            case NfcAdapter.STATE_TURNING_ON:
+            case NfcAdapter.STATE_ON:
+                mNfcAdapter.disable();
+                break;
+            case NfcAdapter.STATE_TURNING_OFF:
+            case NfcAdapter.STATE_OFF:
+                mNfcAdapter.enable();
+                break;
+        }
+    }
+
+    private void updateTileState() {
+        // Get the initial label
+        mLabel = mContext.getString(R.string.quick_settings_nfc);
+        setState(getNfcState());
+    }
+
+    private void setState(int state) {
+        switch (state) {
+        case NfcAdapter.STATE_TURNING_ON:
+        case NfcAdapter.STATE_ON:
+            mDrawable = R.drawable.ic_qs_nfc_on;
+            break;
+        case NfcAdapter.STATE_TURNING_OFF:
+        case NfcAdapter.STATE_OFF:
+        default:
+            mDrawable = R.drawable.ic_qs_nfc_off;
+            mLabel += " " + mContext.getString(R.string.quick_settings_label_disabled);
+            break;
+        }
+    }
+
+    private int getNfcState() {
+        if (mNfcAdapter != null || (mNfcAdapter = NfcAdapter.getDefaultAdapter(mContext)) != null) {
+            return mNfcAdapter.getAdapterState();
+        } else {
+            Log.d(TAG, "No NFC adapter available");
+            return NFC_ADAPTER_UNKNOWN;
+        }
+    }
+}

packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettingsController.java

@@ -28,6 +28,7 @@
 import android.content.pm.PackageManager;
 import android.database.ContentObserver;
 import android.net.Uri;
+import android.nfc.NfcAdapter;
 import android.os.Handler;
 import android.provider.Settings;
 import android.util.Log;
@@ -41,6 +42,7 @@
 import com.android.systemui.quicksettings.BluetoothTile;
 import com.android.systemui.quicksettings.BrightnessTile;
 import com.android.systemui.quicksettings.BugReportTile;
+import com.android.systemui.quicksettings.NfcTile;
 import com.android.systemui.quicksettings.TorchTile;
 import com.android.systemui.quicksettings.GPSTile;
 import com.android.systemui.quicksettings.InputMethodTile;
@@ -98,6 +100,7 @@ public class QuickSettingsController {
     public static final String TILE_LTE = "toggleLte";
     public static final String TILE_WIMAX = "toggleWimax";
     public static final String TILE_PROFILE = "toggleProfile";
+    public static final String TILE_NFC = "toggleNfc";
 
     private static final String TILE_DELIMITER = "|";
     private static final String TILES_DEFAULT = TILE_USER
@@ -145,6 +148,7 @@ public class QuickSettingsController {
     public static final int WIFIAP_TILE = 20;
     public static final int PROFILE_TILE = 21;
     public static final int SYNC_TILE = 22;
+    public static final int NFC_TILE = 23;
     public static final int USER_TILE = 99;
     private InputMethodTile IMETile;
 
@@ -220,6 +224,10 @@ void loadTiles() {
                 if (systemProfilesEnabled(resolver)) {
                     mQuickSettings.add(PROFILE_TILE);
                 }
+            } else if (tile.equals(TILE_NFC)) {
+                // User cannot add the NFC tile if the device does not support it
+                // No need to check again here
+                mQuickSettings.add(NFC_TILE);
             } else if (tile.equals(TILE_WIMAX)) {
                 // Not available yet
             } else if (tile.equals(TILE_LTE)) {
@@ -447,6 +455,10 @@ void addQuickSettings(LayoutInflater inflater){
                 qs = new SyncTile(mContext, inflater,
                         (QuickSettingsContainerView) mContainerView, this);
                 break;
+            case NFC_TILE:
+                qs = new NfcTile(mContext, inflater,
+                        (QuickSettingsContainerView) mContainerView, this);
+                break;
             }
             if (qs != null) {
                 qs.setupQuickSettingsTile();