提交: e8b4ac2e6d04cc4651c8b0852d8bcf02c4e5019a - development (git)

development

Commit MetaInfo

• 修订版: e8b4ac2e6d04cc4651c8b0852d8bcf02c4e5019a (tree)
• 时间: 2011-01-14 05:46:08
• 作者: Jeff Hamilton <jham@andr...>
• Commiter: Android Git Automerger

Log Message

am aad3a1b7: Add a sample for the NFC foreground dispatch APIs.

* commit 'aad3a1b7327491f29db69a4e4bf7c3791662d6b5':

Add a sample for the NFC foreground dispatch APIs.

更改概述

• modified: samples/ApiDemos/AndroidManifest.xml
• add: samples/ApiDemos/res/layout/foreground_dispatch.xml
• add: samples/ApiDemos/src/com/example/android/apis/nfc/ForegroundDispatch.java

差异

--- a/samples/ApiDemos/AndroidManifest.xml
+++ b/samples/ApiDemos/AndroidManifest.xml
@@ -31,6 +31,7 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.SEND_SMS" />
     <uses-permission android:name="android.permission.RECEIVE_SMS" />
+    <uses-permission android:name="android.permission.NFC" />
 
     <!-- For android.media.audiofx.Visualizer -->
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
@@ -1951,6 +1952,13 @@
             </intent-filter>
         </activity>
 
+        <activity android:name=".nfc.ForegroundDispatch" android:label="NFC/ForegroundDispatch">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.SAMPLE_CODE" />
+            </intent-filter>
+        </activity>
+
     </application>
 
     <instrumentation android:name=".app.LocalSampleInstrumentation"

--- /dev/null
+++ b/samples/ApiDemos/res/layout/foreground_dispatch.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2007 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.
+-->
+
+<TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/text"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+
+    android:gravity="center_vertical|center_horizontal"
+    android:textAppearance="?android:attr/textAppearanceMedium"
+/>

--- /dev/null
+++ b/samples/ApiDemos/src/com/example/android/apis/nfc/ForegroundDispatch.java
@@ -0,0 +1,90 @@
+/*
+ * 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);
+    }
+}