NfcAdapter.ACTION_TECH_DISCOVERED : NfcAdapter « Core Class « Android

1. Android
2. Core Class
3. NfcAdapter

NfcAdapter.ACTION_TECH_DISCOVERED

   
/*
 * Copyright (C) 2011 Google Inc.
 *
 * 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.content.Intent;
import android.nfc.NfcAdapter;
import android.os.Bundle;
import android.widget.TextView;

public class TechFilter extends Activity {
    private TextView mText;
    private int mCount = 0;

    @Override
    public void onCreate(Bundle savedState) {
        super.onCreate(savedState);

        setContentView(R.layout.main);
        mText = (TextView) findViewById(R.id.text);

        Intent intent = getIntent();
        String action = intent.getAction();
        if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(action)) {
            mText.setText("Discovered tag " + ++mCount + " with intent: " + intent);
        } else {
            mText.setText("Scan a tag");
        }
    }

    @Override
    public void onNewIntent(Intent intent) {
        mText.setText("Discovered tag " + ++mCount + " with intent: " + intent);
    }
}

//main.xml

<?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"
/>

   
    
    
  

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