| /* |
| * Copyright (C) 2011 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.example.android.apis.nfc; |
| |
| import com.example.android.apis.R; |
| |
| import android.app.Activity; |
| import android.app.PendingIntent; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.IntentFilter.MalformedMimeTypeException; |
| import android.nfc.NfcAdapter; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.widget.TextView; |
| |
| /** |
| * An example of how to use the NFC foreground dispatch APIs. |
| */ |
| public class ForegroundDispatch extends Activity { |
| private NfcAdapter mAdapter; |
| private PendingIntent mPendingIntent; |
| private IntentFilter[] mFilters; |
| private TextView mText; |
| private int mCount = 0; |
| |
| @Override |
| public void onCreate(Bundle savedState) { |
| super.onCreate(savedState); |
| |
| setContentView(R.layout.foreground_dispatch); |
| mText = (TextView) findViewById(R.id.text); |
| mText.setText("Scan a tag"); |
| |
| mAdapter = NfcAdapter.getDefaultAdapter(this); |
| |
| // Create a generic PendingIntent that will be deliver to this activity. The NFC stack |
| // will fill in the intent with the details of the discovered tag before delivering to |
| // this activity. |
| mPendingIntent = PendingIntent.getActivity(this, 0, |
| new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); |
| |
| // Setup intent filters for all types of NFC dispatches to intercept all discovered tags |
| IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED); |
| try { |
| ndef.addDataType("*/*"); |
| } catch (MalformedMimeTypeException e) { |
| throw new RuntimeException("fail", e); |
| } |
| IntentFilter tech = new IntentFilter(NfcAdapter.ACTION_TECHNOLOGY_DISCOVERED); |
| tech.addDataScheme("vnd.android.nfc"); |
| mFilters = new IntentFilter[] { |
| ndef, |
| tech, |
| new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED), |
| }; |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| mAdapter.enableForegroundDispatch(this, mPendingIntent, mFilters); |
| } |
| |
| @Override |
| public void onNewIntent(Intent intent) { |
| Log.i("Foreground dispatch", "Discovered tag with intent: " + intent); |
| mText.setText("Discovered tag " + ++mCount + " with intent: " + intent); |
| } |
| |
| @Override |
| public void onPause() { |
| super.onPause(); |
| mAdapter.disableForegroundDispatch(this); |
| } |
| } |