本文主要是介绍Android自定义吐司(Toast)，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
一、不多说，老惯例，先上图
二、接下来，代码的讲解
package net.dxs.mobilesafe.service;import net.dxs.mobilesafe.R;
import net.dxs.mobilesafe.db.dao.AddressDao;
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.os.SystemClock;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
import android.util.Log;
import android.view.Gravity;
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.TextView;/*** 如果要弹出来 可以相应触摸点击事件的窗体，需要做3件事情。* 1.params.type 设置为可以相应触摸事件* 2.修改窗体类型 电话优先级窗体类型TYPE_PRIORITY_PHONE* 3.设置权限 android.permission.SYSTEM_ALERT_WINDOW* @author lijian**/
public class CallAddressService extends Service {protected static final String TAG = "CallAddressService";/*** 定义一个电话状态的管理器*/private TelephonyManager tm;/*** 电话状态的监听器*/private PhoneStateListener listener;private OutCallInnerReceiver receiver;/*** 系统窗体的管理器*/private WindowManager mWm;/*** 类的成员变量 显示出来的土司的view对象*/private View view;private WindowManager.LayoutParams params;private SharedPreferences sp;@Overridepublic IBinder onBind(Intent intent) {return null;}/*** 在服务的内部创建了一个广播接收者，希望广播接收者的存活周期跟服务一致。* @author lijian**/private class OutCallInnerReceiver extends BroadcastReceiver {private static final String TAG = "CallAddressService";@Overridepublic void onReceive(Context context, Intent intent) {String number = getResultData();Log.i(TAG, "有新的电话打出去了，号码是：" + number);String address = AddressDao.find(number);if (!TextUtils.isEmpty(address)) {// Toast.makeText(getApplicationContext(), address, 1).show();showMyToast(address);}}}@Overridepublic void onCreate() {super.onCreate();sp = getSharedPreferences("config", MODE_PRIVATE);// 初始化窗体管理器mWm = (WindowManager) this.getSystemService(Context.WINDOW_SERVICE);receiver = new OutCallInnerReceiver();// 过滤电话打出去的动作IntentFilter filter = new IntentFilter(Intent.ACTION_NEW_OUTGOING_CALL);registerReceiver(receiver, filter);tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);listener = new Mylistener();// 让监听器监听电话呼叫状态的变化tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);}long[] mHits = new long[2];/*** 显示自定义吐司* @param address 电话号码的归属地*/public void showMyToast(String address) {view = View.inflate(this, R.layout.toast_address, null);//给view对象注册一个双击事件view.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {System.arraycopy(mHits, 1, mHits, 0, mHits.length - 1);//数组向左移位操作mHits[mHits.length - 1] = SystemClock.uptimeMillis();//uptimeMillis()手机的开机时间if (mHits[0] >= (SystemClock.uptimeMillis() - 500)) {params.x = (mWm.getDefaultDisplay().getWidth()-view.getWidth())/2;params.y = (mWm.getDefaultDisplay().getHeight()-view.getHeight())/2;mWm.updateViewLayout(view, params);Editor edit = sp.edit();edit.putInt("paramsx", params.x);edit.putInt("paramsy", params.y);edit.commit();}}});//给view对象组成触摸的监听器view.setOnTouchListener(new OnTouchListener() {int startX;int startY;@Overridepublic boolean onTouch(View v, MotionEvent event) {switch (event.getAction()) {case MotionEvent.ACTION_DOWN://手指按下Log.i(TAG, "手指按下");event.getRawX();startX = (int) event.getRawX();startY = (int) event.getRawY();Log.i(TAG, "oldx:" + startX);Log.i(TAG, "oldy:" + startY);break;case MotionEvent.ACTION_MOVE://手指移动Log.i(TAG, "手指移动");int newX = (int) event.getRawX();int newY = (int) event.getRawY();Log.i(TAG, "newX ： " + newX);Log.i(TAG, "newY ： " + newY);int dx = newX - startX;int dy = newY - startY;Log.i(TAG, "手指水平方向偏移量dx ： " + dx);Log.i(TAG, "手指竖直方向偏移量dy ： " + dy);//立刻让控件也跟随着手指移动 dx dy。params.x += dx;params.y += dy;//超出边界修正if (params.x < 0) {params.x = 0;}if (params.y < 0) {params.y = 0;}if (params.x > (mWm.getDefaultDisplay().getWidth() - view.getWidth())) {params.x = mWm.getDefaultDisplay().getWidth() - view.getWidth();}if (params.y > (mWm.getDefaultDisplay().getHeight() - view.getHeight())) {params.y = mWm.getDefaultDisplay().getHeight() - view.getHeight();}mWm.updateViewLayout(view, params);//重复第一步的操作 ，重新初始化手指的开始位置。startX = (int) event.getRawX();startY = (int) event.getRawY();break;case MotionEvent.ACTION_UP://手指抬起Log.i(TAG, "手指抬起");Editor edit = sp.edit();edit.putInt("paramsx", params.x);edit.putInt("paramsy", params.y);edit.commit();break;}return false;//True if the listener has consumed the event, false otherwise.//true 代表监听器 处理掉了这个事件，false监听器没有处理这个事件。}});TextView tv_toast_address = (TextView) view.findViewById(R.id.tv_toast_address);tv_toast_address.setText(address);//土司显示的参数params = new WindowManager.LayoutParams();//对齐方式params.gravity = Gravity.LEFT + Gravity.TOP;//指定距离屏幕左边的距离 必须与 Gravity.LEFT同时使用params.x = sp.getInt("paramsx", 0);//指定距离屏幕上边的距离 必须与 Gravity.TOP同时使用params.y = sp.getInt("paramsy", 0);// 土司的宽高params.height = WindowManager.LayoutParams.WRAP_CONTENT;params.width = WindowManager.LayoutParams.WRAP_CONTENT;// 土司的参数 不可获取焦点 不可以别点击 保存屏幕常亮params.flags = WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;//| WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;// 半透明窗体params.format = PixelFormat.TRANSLUCENT;//吐司显示动画//params.windowAnimations = R.anim.toast_show;//改用电话优先级的窗体类型，这种类型可以响应触摸事件。params.type = WindowManager.LayoutParams.TYPE_PRIORITY_PHONE;mWm.addView(view, params);}public class Mylistener extends PhoneStateListener {@Overridepublic void onCallStateChanged(int state, String incomingNumber) {super.onCallStateChanged(state, incomingNumber);switch (state) {case TelephonyManager.CALL_STATE_RINGING://响铃状态String address = AddressDao.find(incomingNumber);if (!TextUtils.isEmpty(address)) {//Toast.makeText(getApplicationContext(), address, Toast.LENGTH_LONG).show();showMyToast(address);}break;case TelephonyManager.CALL_STATE_IDLE://空闲if (view != null) {mWm.removeView(view);mWm = null;}break;case TelephonyManager.CALL_STATE_OFFHOOK://接听状态break;}}}// 服务停止的时候调用的方法@Overridepublic void onDestroy() {// 取消电话状态的监听tm.listen(listener, PhoneStateListener.LISTEN_NONE);listener = null;// 服务停止取消注册广播接受者unregisterReceiver(receiver);receiver = null;super.onDestroy();}}
//找到平台下的资源文件internal.R.代表内部的资源文件即\sdk\platforms\android-19\data\res\
示例源代码下载：http://download.csdn.net/download/shenqingxiaojian/7656909
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