popupwindow和dialog的对比

1.两者相同点

1.1 都可以设置对话框
1.2 都可以设置呈现各种弹窗样式

2.两者区别

本质区别：

Dialog是非阻塞式对话框，AlertDialog弹出时后台还可以做其他事情；
popupwindow是阻塞式对话框，popupwindow弹出时程序会等待，在popupwindow结束前程序会一直等待，当调用dismiss方法后popupwindow弹窗关闭程序才向下进行

其他区别：
1.Pop在显示之前必须设置宽高，Dialog无限制
2.点击back的时候，Dialog会消失，Pop默认会响应（除非设置popup.setFocusable(true)）
3.Pop默认不会给页面其他部分添加蒙层，而Dialog默认有蒙层
4.PopupWindow没有标题，Dialog默认有标题
5.二者显示的时候都要设置Gravity。如果不设置，Dialog默认是Gravity.CENTER
6.二者都有默认的背景，都可以通过setBackGroundDrawable(new ColorDrawable(android.R.color.transparent))设置透明
7.Dialog通过show()显示弹窗；Pop通过showAtLocation()弹窗

3.代码实现

Dialog实现底部弹窗

public class BottomDialog extends Dialog implements View.OnClickListener {

    private Context context;
    private TextView tvCall;
    private String name;
    private String phone_number;
    private TextView tv_contact_customer;
    private TextView tv_cancel;

    public BottomDialog(@NonNull Context context, String name, String phone_number, @StyleRes int themeResId）{
        super(context, themeResId);
        this.context = context;
        this.name = name;
        this.phone_number = phone_number;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.layout_contact_phone_dialog);//弹窗布局
        if (this.getWindow() != null) {
            WindowManager.LayoutParams layoutParams = getWindow().getAttributes();
            layoutParams.gravity = Gravity.BOTTOM;//底部弹出
            layoutParams.width = RelativeLayout.LayoutParams.MATCH_PARENT;
            layoutParams.height = RelativeLayout.LayoutParams.WRAP_CONTENT;
            getWindow().getDecorView().setPadding(0, 0, 0, 0);
            getWindow().setAttributes(layoutParams);
            //getWindow().setWindowAnimations(R.style.DialogAnimation);//view中添加动画
        }
        tvCall = findViewById(R.id.call_service);
        tv_contact_customer = findViewById(R.id.tv_contact);
        tv_cancel = findViewById(R.id.tv_close);
        tv_cancel.setOnClickListener(this);
        tv_contact_customer.setOnClickListener(this);
        tvCall.setOnClickListener(this);
    }


    @Override
    public void onClick(View view) {
        if (view.getId() == R.id.call_service) {
            if (onCallSalesListener != null) {
                onCallSalesListener.onCallSalesman();
            }
        }
        if (view.getId() == R.id.tv_contact) {
            if (onCallSalesListener != null) {
                onCallSalesListener.onContactCustomerService();
            }
        }
        if (view.getId() == R.id.tv_close) {
            dismiss();
        }
    }

    //监听接口
    public interface OnCallSalesListener {
        void onCallSalesman();

        void onContactCustomerService();
    }

    private OnCallSalesListener onCallSalesListener;

    public void setOnCallSalesListener(OnCallSalesListener onCallSalesListener) {
        this.onCallSalesListener = onCallSalesListener;
    }
    
}

调用:

 BottomDialog bottomDialog = new BottomDialog(this, "王老五","110", R.style.AlertDialogStyle);
 bottomDialog.show();

popupwindow实现底部弹窗

public class BottomPopWindow extends PopupWindow implements View.OnClickListener{


    private View mMenuView;
    //文本信息
    private TextView tv_prompt_info;
    private final RelativeLayout rl_close;
    private final TextView tv_close;

    public BottomPopWindow(final Context context) {
        super(context);
        mMenuView = View.inflate(context,R.layout.layout_bottom_pop,null);
        //提示信息内容
        tv_prompt_info = mMenuView.findViewById(R.id.tv_info);
        rl_close = mMenuView.findViewById(R.id.rl_close);
        rl_close.setOnClickListener(this);
        tv_close = mMenuView.findViewById(R.id.tv_close);
        tv_close.setOnClickListener(this);
        tv_prompt_info.setText("寒塘渡鹤影,冷月葬花魂");
        tv_prompt_info.setHighlightColor(context.getResources().getColor(android.R.color.transparent));
        //设置SelectPicPopupWindow的View
        this.setContentView(mMenuView);//设置布局
        //设置弹出窗体的宽和高
        this.setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
        this.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
        //返回键可点击
        this.setFocusable(true);
        //外部可点
        this.setOutsideTouchable(true);
        //弹出窗体的背景
        this.setBackgroundDrawable(new ColorDrawable(0xAA000000));
        //动画效果
        this.setAnimationStyle(R.style.DialogAnimation);
        //弹窗dismiss时调用
        this.setOnDismissListener(new OnDismissListener() {
            @Override
            public void onDismiss() {
					//弹窗结束的收尾工作...
            }
        });
    }

    @Override
    public void onClick(View v) {
        if (v.getId()==R.id.rl_close || v.getId()==R.id.tv_close ){
                dismiss();
        }
    }
}

调用：

 BottomPopWindow bottomDialog = new BottomPopWindow(this);
 bottomDialog.showAtLocation(findViewById(R.id.llParent), Gravity.BOTTOM, 0, 0);