88 lines
3.2 KiB
Java
88 lines
3.2 KiB
Java
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.example.android.lce;
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import android.annotation.TargetApi;
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import android.app.Activity;
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import android.net.ConnectivityManager;
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import android.net.Network;
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import android.net.NetworkCapabilities;
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import android.net.NetworkRequest;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.Message;
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import android.text.method.ScrollingMovementMethod;
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import android.view.View;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.widget.Button;
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import android.widget.TextView;
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public class LceDemoActivity extends Activity {
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private ConnectivityManager connectityManager;
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@Override
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@TargetApi(23)
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// Default toolbar action handler.
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setContentView(R.layout.activity_lce_demo);
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final TextView text = (TextView) findViewById(R.id.lceText);
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text.setMovementMethod(new ScrollingMovementMethod());
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// Get an instance of ConnectivityManager.
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connectityManager = (ConnectivityManager)getSystemService(
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getApplicationContext().CONNECTIVITY_SERVICE);
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// Create a handler to update text on the screen.
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final Handler handler = new Handler() {
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@Override
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public void handleMessage(Message msg) {
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text.append((String)msg.obj);
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super.handleMessage(msg);
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}
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};
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// Now register the network call back function.
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NetworkRequest.Builder builder = new NetworkRequest.Builder();
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connectityManager.registerNetworkCallback(builder.build(),
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new ConnectivityManager.NetworkCallback() {
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@Override
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public void onCapabilitiesChanged(Network network, NetworkCapabilities cap) {
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Message message = handler.obtainMessage();
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message.obj = "New downlink capacity received: " +
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cap.getLinkDownstreamBandwidthKbps() + " kbps on network: "
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+ network.toString() + "\n";
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handler.sendMessage(message);
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}
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});
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// Regsiter button action callback function, which pulls the LCE service
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// for bandwidth update.
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final Button button = (Button) findViewById(R.id.lceButton);
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button.setOnClickListener(new View.OnClickListener() {
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public void onClick(View v) {
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for(Network network : connectityManager.getAllNetworks()) {
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// No-op for network interface not supporting LCE.
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connectityManager.requestBandwidthUpdate(network);
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}
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}
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});
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}
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}
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