Android自定义弹出框开发-生成Window容器

生成PhoneWindow

反射生成:

private final String POLICY_CLASS_PATH = "com.android.internal.policy.impl.Policy";
private Window getPhoneWindow(Context context) {
    try{
    //生成Policy类对象
     Class<?> pmclazz = Class.forname(POLICY_CLASS_PATH);
     //生成Policy类的对象
     Object pmco = pmclazz.newInstance();
     //生成Policy的makeNewWindow的方法对象
     Method makeNewWindowMethod = pmclazz.getDeclaredMethod("makeNewWindow",Context.class);
     makeNewWindowMethod.setAccessible(true);
     return (Window)makeNewWindowMethod.invoke(poco, context);
    }catch(Exception e){
        //TODO-print
        return null;
    }
}

初步初始化界面为一条蓝色长块,去掉标题

private void initDecor() {
    View view = new View(mContext);
    ViewGroup.LayoutParams vp = 
    new ViewGroup.LayoutParams(MATCH_PARENT, 80);
    view.setBackgroundColor(Color.BLUE);
    //去掉窗口的标题,带icon的那栏,必须调用在setContentView前
    mWindow.requestFeature(Window.FEATURE_NO_TITLE);
    mWindow.setContentView(View, vp);
    mWindow.setBackgroundDrawableResource(color);
    //设置Window相关参数
    WindowManager.LayoutParams l = mWindow.getAttributes();
    //必须设置,不然出现token is null exception
    l.type = WindowManager.LayoutParams.TYPE_PHONE;
    //设置后,非窗口位置不拦截TouchEvent事件
    l.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
    //将窗口添加到窗口管理器管理中去显示
    mWindwoManager.addView(mWindow.getDecorView(),l);
}