来电监听
创建后台服务 AddressService public void onCreate() { listener = new MyPhoneListener(); tm = (TelephonyManager) getSystemService(TELEPHONY_SERVICE); tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE); }; @Override public void onDestroy() { super.onDestroy(); tm.listen(listener, PhoneStateListener.LISTEN_NONE); listener = null; } class MyPhoneListener extends PhoneStateListener { @Override public void onCallStateChanged(int state, String incomingNumber) { switch (state) { case TelephonyManager.CALL_STATE_RINGING: String address = NumberAddressDao.getAddress(incomingNumber); Toast.makeText(AddressService.this, address, Toast.LENGTH_LONG) .show(); break; default: break; } super.onCallStateChanged(state, incomingNumber); } } 设置页面新增勾选框,点击后启动或停止service
判断服务是否在后台运行,更新checkbox
public static boolean isServiceRunning(String serviceName, Context ctx) { ActivityManager am = (ActivityManager) ctx .getSystemService(Context.ACTIVITY_SERVICE); List runningServices = am.getRunningServices(100);//获取所有后台运行的服务 for (RunningServiceInfo runningServiceInfo : runningServices) { String className = runningServiceInfo.service.getClassName(); if (className.equals(serviceName)) { return true; } } return false; }
去电监听
静态注册广播注意添加权限: 问题: 当开关关闭时,仍然能显示去电地址信息 动态注册广播当启动后台服务时,注册广播,服务停止后,注销广播,这样的话,来电和去电的位置显示都可以由一个开关来控制
自定义Toast
Toast原理分析查找transient_notification文件,查看布局样式, 在values/themes中搜索toastFrameBackground, 查看背景图片toast_frame.9.png 分析Toast源码, 创建自定义Toast private void showToast(String address) { view = new TextView(this); view.setText(address); view.setTextColor(Color.RED); final WindowManager.LayoutParams params = new WindowManager.LayoutParams(); params.height = WindowManager.LayoutParams.WRAP_CONTENT; params.width = WindowManager.LayoutParams.WRAP_CONTENT; params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; params.format = PixelFormat.TRANSLUCENT; params.type = WindowManager.LayoutParams.TYPE_TOAST; params.setTitle("Toast"); wm.addView(view, params); } 监听电话状态, 如果电话处于空闲状态,就从WindowManager中删除View case TelephonyManager.CALL_STATE_IDLE: if (wm != null && view != null) { wm.removeView(view); } break;
自定义Toast样式
1. 布局文件 电话图标: @android:drawable/ic_menu_call 2. 自定义SettingClickView, 类似SettingItemView 去掉自定义属性,保留setDesc和setTitle两个方法 3. 初始化SettingClickView, 设置点击事件,弹出单选Dialog // 选择归属地样式的弹窗 AlertDialog.Builder builder = new AlertDialog.Builder( SettingActivity.this); int style = sp.getInt("address_style", 0); builder.setSingleChoiceItems(items, style, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { sp.edit().putInt("address_style", which) .commit(); scvStyle.setDesc(items[which]); dialog.dismiss(); } }); builder.setNegativeButton("取消", null); builder.show(); 4. 选择相应样式,保存在sp中 5. 从sp中读取样式,在AddressService中更改背景图片 SharedPreferences sp = getSharedPreferences("config", MODE_PRIVATE); int style = sp.getInt("address_style", 0); int[] bgs = new int[] { R.drawable.call_locate_white, R.drawable.call_locate_orange, R.drawable.call_locate_blue, R.drawable.call_locate_gray, R.drawable.call_locate_green }; view.setBackgroundResource(bgs[style]);
修改归属地显示位置
定义DragViewActivity 1. 布局文件: 2. 拖拽事件监听 ivDrag.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: //获取起始点坐标 startX = (int) event.getRawX(); startY = (int) event.getRawY(); break; case MotionEvent.ACTION_MOVE: int endX = (int) event.getRawX(); int endY = (int) event.getRawY(); int dx = endX - startX; int dy = endY - startY; System.out.println("位置偏移:(" + dx + "," + dy + ")"); //根据手指的移动偏移量,计算出图片相应的位置 int left = ivDrag.getLeft() + dx; int top = ivDrag.getTop() + dy; int right = ivDrag.getRight() + dx; int bottom = ivDrag.getBottom() + dy; //判断图片是否移出屏幕 if (left
使用WindowManager设置归属地位置
int lastX = sp.getInt("lastX", 0); int lastY = sp.getInt("lastY", 0); params.gravity = Gravity.TOP + Gravity.LEFT; //注意要将重心设置在左上方,默认位于屏幕中央 params.x = lastX; params.y = lastY;
半透明效果处理
1. 清单文件中增加样式, 将Activity设置为全透明 2. 将根布局的背景设置为半透明颜色
双击事件
public void onClick(View view) { if (firstClickTime > 0) { if (System.currentTimeMillis() - firstClickTime < 500) { System.out.println("双击"); firstClickTime = 0; return; } } firstClickTime = System.currentTimeMillis(); }
多击事件
设置->关于手机->"Android 版本",多次点击后会跳转页面 查看系统源码Settings, 搜索"Android 版本"字符串,查找相关代码,拷贝到自己的项目中 long[] mHits = new long[3];//数组长度为点击次数 public void onClick(View view) { // src 源数组 // srcPos 开始拷贝的位置 // dst 目标数组 // dstPos 目标数组的起始拷贝位置 // length 拷贝的数组长度 System.arraycopy(mHits, 1, mHits, 0, mHits.length - 1);//拷贝数组 mHits[mHits.length - 1] = SystemClock.uptimeMillis(); if (mHits[0] >= (SystemClock.uptimeMillis() - 500)) { System.out.println("是男人!!!"); mHits = new long[3]; } }
双击居中
//图片设置为屏幕居中 ivDrag.layout(windowWidth / 2 - ivDrag.getWidth() / 2, ivDrag.getTop(), windowWidth / 2 + ivDrag.getWidth() / 2, ivDrag.getBottom()); //在sp中记录位置 Editor edit = sp.edit(); edit.putInt("lastX", ivDrag.getLeft()); edit.putInt("lastY", ivDrag.getTop()); edit.commit(); 注意: 为了能响应点击事件,需要在onTouch中返回false,将事件传递给onClick
窗体触摸移动
1. 为了获取触摸事件,首先需要去掉WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE 2. 其次设置params.type = WindowManager.LayoutParams.TYPE_Phone; 3. 增加权限 4. 移动逻辑处理 case MotionEvent.ACTION_MOVE: int dx = (int) (event.getRawX() - startX); int dy = (int) (event.getRawY() - startY); params.x += dx; params.y += dy; //控制图片不要超出屏幕边界 if (params.x < 0) { params.x = 0; } //控制图片不要超出屏幕边界 if (params.y < 0) { params.y = 0; } //控制图片不要超出屏幕边界 if (params.x > wm.getDefaultDisplay().getWidth() - view.getWidth()) { params.x = wm.getDefaultDisplay().getWidth() - view.getWidth(); } //控制图片不要超出屏幕边界 if (params.y > wm.getDefaultDisplay().getHeight() - view.getHeight()) { params.y = wm.getDefaultDisplay().getHeight() - view.getHeight(); } System.out.println("当前位置:" + params.x + ";" + params.y); wm.updateViewLayout(view, params);//更新图片的显示位置 startX = (int) event.getRawX(); startY = (int) event.getRawY(); break;