Android下仿一个优化大师的流量悬浮控件

在平台项目里面做过一个service弹出对话框的功能。这个也差不多。

下面说下这个demo的功能点吧:

1.使用service来弹出此悬浮框,从而保证能长期存在。

2.使用window manager来控制悬浮框漂浮在所有view的上层。参数具体设置见代码。

3.使用TrafficStats来检测网络流量状态。

4.使用ConnectivityManager 来对Wifi,3G等网络状态进行检测。

5.使用handler在线程中异步刷新主界面。


废话不多说了,上代码,一看就明了:

package com.wenix;

import android.app.Service;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.net.TrafficStats;
import android.os.Handler;
import android.os.IBinder;
import android.os.Message;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;

import com.wenix.util.NetworkUtil;

public class TopFloatService extends Service {
	protected static final String TAG = "TopFloatService";
	protected static final int WHAT = 0x123456;
	WindowManager wm = null;
	WindowManager.LayoutParams wmParams = null;
	View view;
	ImageView downloadIv;
	TextView flowTxt;

	private float mTouchStartX;
	private float mTouchStartY;
	private float x;
	private float y;

	private String flowInfoStr;
	private Handler mHandler;

	@Override
	public void onCreate() {
		super.onCreate();
		// 获取WindowManager
		wm = (WindowManager) getApplicationContext().getSystemService("window");
		// 设置LayoutParams(全局变量)相关参数
		wmParams = new WindowManager.LayoutParams();

		// setForeground(true);
		view = LayoutInflater.from(this).inflate(R.layout.floating, null);
		downloadIv = (ImageView) view.findViewById(R.id.downloadingImgBtn);
		flowTxt = (TextView) view.findViewById(R.id.downloadingInfoTxt);

		new Thread(new Runnable() {

			@Override
			public void run() {
				// TODO Auto-generated method stub
				while (!Thread.interrupted()) {
					if (NetworkUtil.isNetworkAvailable(getApplicationContext())) {
						float reciveBytes = TrafficStats.getMobileRxBytes() / 1024.0f;
						float sendBytes = TrafficStats.getMobileTxBytes() / 1024.0f;
						String flowInfo = getApplicationContext().getResources().getString(R.string.networkflow);
						flowInfoStr = String.format(flowInfo, reciveBytes, sendBytes);
						Log.i(TAG, "reciveBytes=" + reciveBytes + ",sendBytes=" + sendBytes);
						Message msg = new Message();
						msg.what = WHAT;
						mHandler.sendMessage(msg);
					}
				}
			}
		}).start();

		mHandler = new Handler() {

			@Override
			public void handleMessage(Message msg) {
				// TODO Auto-generated method stub
				super.handleMessage(msg);
				if (WHAT == msg.what) {
					flowTxt.setText(flowInfoStr);
				}
			}

		};
	}

	@Override
	public void onStart(Intent intent, int startId) {
		// TODO Auto-generated method stub
		super.onStart(intent, startId);
		createView();
	}

	private void createView() {
		wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
		// 该类型提供与用户交互,置于所有应用程序上方,但是在状态栏后面
		// TYPE_TOAST TYPE_SYSTEM_OVERLAY 在其他应用上层 在通知栏下层 位置不能动鸟
		// TYPE_PHONE 在其他应用上层 在通知栏下层
		// TYPE_PRIORITY_PHONE TYPE_SYSTEM_ALERT 在其他应用上层 在通知栏上层 没试出来区别是啥
		// TYPE_SYSTEM_ERROR 最顶层(通过对比360和天天动听歌词得出)
		// 用别的TYPE还出报错... 也希望大家补充一下

		wmParams.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;// 不接受任何按键事件
		wmParams.gravity = Gravity.LEFT | Gravity.TOP; // 调整悬浮窗口至左上角
		// 以屏幕左上角为原点,设置x、y初始值
		wmParams.x = 0;
		wmParams.y = 0;
		// 设置悬浮窗口长宽数据
		wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
		wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;
		wmParams.format = PixelFormat.RGBA_8888;

		wm.addView(view, wmParams);

		view.setOnTouchListener(new OnTouchListener() {
			public boolean onTouch(View v, MotionEvent event) {
				// 获取相对屏幕的坐标,即以屏幕左上角为原点
				x = event.getRawX();
				// 25是系统状态栏的高度,也可以通过方法得到准确的值,自己微调就是了
				y = event.getRawY();
				switch (event.getAction()) {
				case MotionEvent.ACTION_DOWN:
					// 获取相对View的坐标,即以此View左上角为原点
					mTouchStartX = event.getX();
					mTouchStartY = event.getY() + view.getHeight() / 2;
					return false;
				case MotionEvent.ACTION_MOVE:
					updateViewPosition();
					break;
				case MotionEvent.ACTION_UP:
					updateViewPosition();
					mTouchStartX = mTouchStartY = 0;
					return false;
				}
				return true;
			}

		});

		view.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
			}
		});

	}

	private void updateViewPosition() {
		// 更新浮动窗口位置参数
		wmParams.x = (int) (x - mTouchStartX);
		wmParams.y = (int) (y - mTouchStartY);
		wm.updateViewLayout(view, wmParams);
	}

	@Override
	public IBinder onBind(Intent intent) {
		return null;
	}
}

工具类:

package com.wenix.util;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;

public class NetworkUtil {
	private static final String TAG = "NetworkUtil";

	public static boolean isNetworkAvailable(Context context) {
		ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		if (connectivity == null) {
			Log.i("NetWorkState", "Unavailabel");
		} else {
			NetworkInfo[] info = connectivity.getAllNetworkInfo();
			if (info != null) {
				for (int i = 0; i < info.length; i++) {
					if (info[i].getState() == NetworkInfo.State.CONNECTED) {
						Log.i(TAG, info[i].getTypeName() + " Availabel");
					}
				}
			}
			return true;
		}
		return false;
	}
}

缺点

1是还没有实现控件的事件分离,如onclick,onLongClick,onTouch等事件。

2是流量显示的不精确。

下次再慢慢完善吧。


你可能感兴趣的:(Android)