| /* |
| * Copyright (C) 2010 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.apps.tag; |
| |
| import com.android.apps.tag.message.NdefMessageParser; |
| import com.android.apps.tag.message.ParsedNdefMessage; |
| import com.android.apps.tag.record.ParsedNdefRecord; |
| |
| import android.app.Activity; |
| import android.content.Intent; |
| import android.nfc.NdefMessage; |
| import android.nfc.NfcAdapter; |
| import android.os.Bundle; |
| import android.os.Parcelable; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.View.OnClickListener; |
| import android.widget.LinearLayout; |
| import android.widget.TextView; |
| |
| import java.util.List; |
| |
| /** |
| * An {@link Activity} which handles a broadcast of a new tag that the device just discovered. |
| */ |
| public class TagViewer extends Activity implements OnClickListener { |
| static final String TAG = "TagViewer"; |
| |
| LinearLayout mTagContent; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| setContentView(R.layout.tag_viewer); |
| |
| mTagContent = (LinearLayout) findViewById(R.id.list); |
| |
| resolveIntent(getIntent()); |
| } |
| |
| void resolveIntent(Intent intent) { |
| // Parse the intent |
| String action = intent.getAction(); |
| if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action) |
| || NfcAdapter.ACTION_TECH_DISCOVERED.equals(action)) { |
| Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES); |
| NdefMessage msg = null; |
| if (rawMsgs != null && rawMsgs.length > 0) { |
| msg = (NdefMessage) rawMsgs[0]; |
| } |
| |
| buildTagViews(msg); |
| } else { |
| Log.e(TAG, "Unknown intent " + intent); |
| finish(); |
| return; |
| } |
| } |
| |
| void buildTagViews(NdefMessage msg) { |
| LayoutInflater inflater = LayoutInflater.from(this); |
| LinearLayout content = mTagContent; |
| |
| // Clear out any old views in the content area, for example if you scan two tags in a row. |
| content.removeAllViews(); |
| |
| // Build views for all of the sub records |
| if (msg == null) { |
| TextView empty = (TextView) inflater.inflate(R.layout.tag_text, content, false); |
| empty.setText(R.string.tag_empty); |
| content.addView(empty); |
| } else { |
| // Parse the first message in the list |
| //TODO figure out what to do when/if we support multiple messages per tag |
| ParsedNdefMessage parsedMsg = NdefMessageParser.parse(msg); |
| |
| List<ParsedNdefRecord> records = parsedMsg.getRecords(); |
| final int size = records.size(); |
| if (size == 0) { |
| TextView empty = (TextView) inflater.inflate(R.layout.tag_text, content, false); |
| empty.setText(R.string.tag_empty); |
| content.addView(empty); |
| } else { |
| for (int i = 0; i < size; i++) { |
| ParsedNdefRecord record = records.get(i); |
| content.addView(record.getView(this, inflater, content, i)); |
| inflater.inflate(R.layout.tag_divider, content, true); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void onNewIntent(Intent intent) { |
| setIntent(intent); |
| resolveIntent(intent); |
| } |
| |
| @Override |
| public void onClick(View view) { |
| finish(); |
| } |
| } |