1、实现方法1 仿微信盆友圈弹出点赞、评论
demo连接：android开发PopupWindow实现跟随试弹出框-Android文档类资源-CSDN下载
实现步骤
1、下载module并引入项目
引入module步骤：Android studio 导入module方法_meixi_android的博客-CSDN博客_as怎么导入module
2、实现方法2
1、封装弹出窗类
/*** 作者：created by meixi* 邮箱：13164716840@163.com* 日期：2018/10/26 15*/public abstract class CommonPopupWindow {protected Context context;protected View contentView;protected PopupWindow mInstance;public CommonPopupWindow(Context c, int layoutRes, int w, int h) {context=c;contentView= LayoutInflater.from(c).inflate(layoutRes, null, false);initView();initEvent();mInstance=new PopupWindow(contentView, w, h, true);initWindow();}public View getContentView() { return contentView; }public PopupWindow getPopupWindow() { return mInstance; }protected abstract void initView();protected abstract void initEvent();protected void initWindow() {mInstance.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));mInstance.setOutsideTouchable(true);
// mInstance.setTouchable(true);}public void showBashOfAnchor(View anchor, LayoutGravity layoutGravity, int xmerge, int ymerge) {int[] offset=layoutGravity.getOffset(anchor, mInstance);mInstance.showAsDropDown(anchor, offset[0]+xmerge, offset[1]+ymerge);}public void showAsDropDown(View anchor, int xoff, int yoff) {mInstance.showAsDropDown(anchor, xoff, yoff);}public void showAtLocation(View parent, int gravity, int x, int y) {mInstance.showAtLocation(parent, gravity, x, y);}public static class LayoutGravity {private int layoutGravity;// waring, don't change the order of these constants!public static final int ALIGN_LEFT=0x1;public static final int ALIGN_ABOVE=0x2;public static final int ALIGN_RIGHT=0x4;public static final int ALIGN_BOTTOM=0x8;public static final int TO_LEFT=0x10;public static final int TO_ABOVE=0x20;public static final int TO_RIGHT=0x40;public static final int TO_BOTTOM=0x80;public static final int CENTER_HORI=0x100;public static final int CENTER_VERT=0x200;public LayoutGravity(int gravity) {layoutGravity=gravity;}public int getLayoutGravity() { return layoutGravity; }public void setLayoutGravity(int gravity) { layoutGravity=gravity; }public void setHoriGravity(int gravity) {layoutGravity&=(0x2+0x8+0x20+0x80+0x200);layoutGravity|=gravity;}public void setVertGravity(int gravity) {layoutGravity&=(0x1+0x4+0x10+0x40+0x100);layoutGravity|=gravity;}public boolean isParamFit(int param) {return (layoutGravity & param) > 0;}public int getHoriParam() {for(int i=0x1; i<=0x100; i=i<<2)if(isParamFit(i))return i;return ALIGN_LEFT;}public int getVertParam() {for(int i=0x2; i<=0x200; i=i<<2)if(isParamFit(i))return i;return TO_BOTTOM;}public int[] getOffset(View anchor, PopupWindow window) {int anchWidth=anchor.getWidth();int anchHeight=anchor.getHeight();int winWidth=window.getWidth();int winHeight=window.getHeight();View view=window.getContentView();if(winWidth<=0)winWidth=view.getWidth();if(winHeight<=0)winHeight=view.getHeight();int xoff=0;int yoff=0;switch (getHoriParam()) {case ALIGN_LEFT:xoff=0; break;case ALIGN_RIGHT:xoff=anchWidth-winWidth; break;case TO_LEFT:xoff=-winWidth; break;case TO_RIGHT:xoff=anchWidth; break;case CENTER_HORI:xoff=(anchWidth-winWidth)/2; break;default:break;}switch (getVertParam()) {case ALIGN_ABOVE:yoff=-anchHeight; break;case ALIGN_BOTTOM:yoff=-winHeight; break;case TO_ABOVE:yoff=-anchHeight-winHeight; break;case TO_BOTTOM:yoff=0; break;case CENTER_VERT:yoff=(-winHeight-anchHeight)/2; break;default:break;}return new int[]{ xoff, yoff };}}
}
外部不可点击
mInstance.setOutsideTouchable(false); mInstance.setFocusable(false);
2、activity调用代码
（1）下拉式弹出
private CommonPopupWindow.LayoutGravity layoutGravity;private CommonPopupWindow window;
private View activityPopup;activityPopup=findViewById(R.id.activity_popup); textView.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {PopupWindow win=window.getPopupWindow();win.setAnimationStyle(R.style.animTranslate);//动画效果window.showBashOfAnchor(textView, layoutGravity, 0, 0);//跟随式弹出
// window.showAtLocation(activityPopup, Gravity.BOTTOM, 0, 0);//底部弹出WindowManager.LayoutParams lp=getWindow().getAttributes();lp.alpha=0.3f;getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);getWindow().setAttributes(lp);}});下拉式实例化
private void initPopup2(){layoutGravity=new CommonPopupWindow.LayoutGravity(CommonPopupWindow.LayoutGravity.CENTER_HORI| CommonPopupWindow.LayoutGravity.TO_BOTTOM);DisplayMetrics dm = new DisplayMetrics();getWindowManager().getDefaultDisplay().getMetrics(dm);int nMultiple = dm.widthPixels;//宽window=new CommonPopupWindow(this, R.layout.mypopup, (int) (nMultiple*0.4), ViewGroup.LayoutParams.WRAP_CONTENT) {@Overrideprotected void initView() {View view=getContentView();linearLayout =(LinearLayout)view.findViewById(R.id.oneli);}@Overrideprotected void initEvent() {linearLayout.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {Toast.makeText(MainActivity.this,"ssssblue",Toast.LENGTH_SHORT).show();}});}@Overrideprotected void initWindow() {super.initWindow();PopupWindow instance=getPopupWindow();instance.setOnDismissListener(new PopupWindow.OnDismissListener() {@Overridepublic void onDismiss() {WindowManager.LayoutParams lp=getWindow().getAttributes();lp.alpha=1.0f;getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);getWindow().setAttributes(lp);}});}};
}（2）底部弹出
private void initPopupWindow() {DisplayMetrics dm = new DisplayMetrics();getWindowManager().getDefaultDisplay().getMetrics(dm);int nMultiple = dm.widthPixels;//宽// window=new CommonPopupWindow(this, R.layout.mypopup, ViewGroup.LayoutParams.MATCH_PARENT, (int) (screenHeight*0.7)) {window=new CommonPopupWindow(this, R.layout.mypopup, (int) (nMultiple*0.9), ViewGroup.LayoutParams.WRAP_CONTENT) {@Overrideprotected void initView() {View view=getContentView();linearLayout =(LinearLayout)view.findViewById(R.id.oneli);}@Overrideprotected void initEvent() {linearLayout.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View view) {Toast.makeText(MainActivity.this,"ssssblue",Toast.LENGTH_SHORT).show();}});}@Overrideprotected void initWindow() {super.initWindow();PopupWindow instance=getPopupWindow();instance.setOnDismissListener(new PopupWindow.OnDismissListener() {@Overridepublic void onDismiss() {WindowManager.LayoutParams lp=getWindow().getAttributes();lp.alpha=1.0f;getWindow().clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);getWindow().setAttributes(lp);}});}};} window.getPopupWindow().dismiss();//隐藏demo链接：PopupWindow实现demo-Android代码类资源-CSDN下载
下拉式弹出窗 全屏底部弹出窗
