哈尔滨seo网站排名,山东建设项目环境影响登记网站,大连公司地址,佛山制作网页公司0 背景 开发要实现一个可以拖动的圆角小窗#xff0c;要求松手时#xff0c;哪边近些靠哪边。并且还规定了拖动范围。样式如下#xff1a;
1 实现
首先把 PopupWindow 的布局文件 pop.xml 实现
?xml version1.0 encodingutf-8?
R…0 背景 开发要实现一个可以拖动的圆角小窗要求松手时哪边近些靠哪边。并且还规定了拖动范围。样式如下
1 实现
首先把 PopupWindow 的布局文件 pop.xml 实现
?xml version1.0 encodingutf-8?
RelativeLayoutxmlns:androidhttp://schemas.android.com/apk/res/androidxmlns:apphttp://schemas.android.com/apk/res-autoandroid:layout_width88dpandroid:layout_height132dpandroid:backgrounddrawable/radius_12android:idid/mini_popupandroid:visibilityvisiblecom.google.android.material.imageview.ShapeableImageViewandroid:idid/iv_live_coverandroid:layout_width88dpandroid:scaleTypefitXYandroid:layout_height132dpandroid:backgroundcolor/purple_200app:shapeAppearanceOverlaystyle/MiniDialogRoundedImageStyle /ImageViewandroid:idid/iv_closeandroid:layout_width16dpandroid:layout_height16dpandroid:layout_alignParentRighttrueandroid:layout_marginTop4dpandroid:layout_marginRight4dpandroid:srccolor/teal_200 /
/RelativeLayout布局中圆角和 PopupWindow 的动画 style.xml !-- 圆角图片 --style nameMiniDialogRoundedImageStyleitem namecornerFamilyrounded/itemitem namecornerSize12dp/item/style!-- PopupWindow 的动画效果 --style namePopupWindowAnimationitem nameandroid:windowEnterAnimationanim/live_popup_window_in_anim/item/styleradius_12.xml
?xml version1.0 encodingutf-8?
shape xmlns:androidhttp://schemas.android.com/apk/res/androidcorners android:radius12dp/solid android:colorcolor/white/
/shapeMyPopupWindow.java
package com.example.myapplication.popupwindow;import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.text.TextUtils;
import android.util.DisplayMetrics;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.PopupWindow;import com.bumptech.glide.Glide;
import com.example.myapplication.R;public class MyPopupWindow extends PopupWindow {private Context mContext;private View mRootView;// 背景private ImageView mBackground;// 关闭弹窗private ImageView mIvClose;// 弹窗的移动范围private int mMinX;private int mMinY;private int mMaxX;private int mMaxY;// 屏幕宽高private int mScreenWidth;public MyPopupWindow(Context context) {super(context);mContext context;mRootView View.inflate(mContext, R.layout.pop, null);mScreenWidth getScreenWidth(mContext);mMinX dp2px(12);mMaxX mScreenWidth - dp2px(12) - dp2px(88);mMinY dp2px(12);mMaxY dp2px(500);// 为了保证整体是圆角形状mRootView.findViewById(R.id.mini_popup).setClipToOutline(true);initView();}private void initView() {setContentView(mRootView);mBackground mRootView.findViewById(R.id.iv_live_cover);mIvClose mRootView.findViewById(R.id.iv_close);mIvClose.setOnClickListener(view - this.dismiss());// 小窗的宽高setHeight(dp2px(132));setWidth(dp2px(88));this.setTouchInterceptor(new View.OnTouchListener() {int orgX, orgY;int offsetX, offsetY;Overridepublic boolean onTouch(View view, MotionEvent motionEvent) {switch (motionEvent.getAction()) {case MotionEvent.ACTION_DOWN:orgX (int) motionEvent.getX();orgY (int) motionEvent.getY();break;case MotionEvent.ACTION_MOVE:offsetX (int) motionEvent.getRawX() - orgX;offsetY (int) motionEvent.getRawY() - orgY;// 限制 x 坐标offsetX Math.max(offsetX, mMinX);offsetX Math.min(offsetX, mMaxX);// 限制 y 坐标offsetY Math.max(offsetY, mMinY);offsetY Math.min(offsetY, mMaxY);update(offsetX, offsetY, -1, -1, true);break;case MotionEvent.ACTION_UP:// 小窗靠边if (offsetX mScreenWidth / 2) {offsetX mMinX;} else {offsetX mMaxX;}update(offsetX, offsetY, -1, -1, true);break;}// 避免 view 中的其他点击事件被吞掉return false;}});// 设置小窗背景this.setBackgroundDrawable(mContext.getResources().getDrawable(R.drawable.abc_vector_test));// 出现的动画this.setAnimationStyle(R.style.PopupWindowAnimation);}public void show(View anchor) {this.showAtLocation(anchor, Gravity.NO_GRAVITY, mMaxX, mMaxY);}SuppressLint(CheckResult)public void setBackground(String url) {if (url ! null !TextUtils.isEmpty(url))Glide.with(mContext).load(url).into(mBackground);}public int dp2px(float dpValue) {return (int) (0.5f dpValue * Resources.getSystem().getDisplayMetrics().density);}public int getScreenWidth(Context context) {DisplayMetrics localDisplayMetrics new DisplayMetrics();((Activity) context).getWindowManager().getDefaultDisplay().getMetrics(localDisplayMetrics);return localDisplayMetrics.widthPixels;}
}最后在 MainActivity 中使用
mTextView findViewById(R.id.myView);
if (mMyPopupWindow null) {mMyPopupWindow new MyPopupWindow(MainActivity.this);
}
mTextView.post(() - {mMyPopupWindow.show(mTextView);
});
