前言：因为Android 没有像IOS一样的ActionSheet，虽然在github上看到有一些类似ActionSheet的库，总觉得不好用，不如自己写一个弹框通用类，样式全部自已来多好。
Step 1
废话不多说，直接上代码。
public class CustomPopWindow implements PopupWindow.OnDismissListener{ private static final String TAG = "CustomPopWindow"; private static final float DEFAULT_ALPHA = 0.7f; private Context mContext; private int mWidth; private int mHeight; private boolean mIsFocusable = true; private boolean mIsOutside = true; private int mResLayoutId = -1; private View mContentView; private PopupWindow mPopupWindow; private int mAnimationStyle = -1; private boolean mClippEnable = true;//default is true private boolean mIgnoreCheekPress = false; private int mInputMode = -1; private PopupWindow.OnDismissListener mOnDismissListener; private int mSoftInputMode = -1; private boolean mTouchable = true;//default is ture private View.OnTouchListener mOnTouchListener; private Window mWindow;//当前Activity 的窗口 /** * 弹出PopWindow 背景是否变暗，默认不会变暗。 */ private boolean mIsBackgroundDark = false; private float mBackgroundDrakValue = 0;// 背景变暗的值，0 - 1 /** * 设置是否允许点击 PopupWindow之外的地方，关闭PopupWindow */ private boolean enableOutsideTouchDisMiss = true;// 默认点击pop之外的地方可以关闭 private CustomPopWindow(Context context){ mContext = context; } public int getWidth() { return mWidth; } public int getHeight() { return mHeight; } /** * * @param anchor * @param xOff * @param yOff * @return */ public CustomPopWindow showAsDropDown(View anchor, int xOff, int yOff){ if(mPopupWindow!=null){ mPopupWindow.showAsDropDown(anchor,xOff,yOff); } return this; } public CustomPopWindow showAsDropDown(View anchor){ if(mPopupWindow!=null){ mPopupWindow.showAsDropDown(anchor); } return this; } @RequiresApi(api = Build.VERSION_CODES.KITKAT) public CustomPopWindow showAsDropDown(View anchor, int xOff, int yOff, int gravity){ if(mPopupWindow!=null){ mPopupWindow.showAsDropDown(anchor,xOff,yOff,gravity); } return this; } /** * 相对于父控件的位置（通过设置Gravity.CENTER，下方Gravity.BOTTOM等 ），可以设置具体位置坐标 * @param parent 父控件 * @param gravity * @param x the popup's x location offset * @param y the popup's y location offset * @return */ public CustomPopWindow showAtLocation(View parent, int gravity, int x, int y){ if(mPopupWindow!=null){ mPopupWindow.showAtLocation(parent,gravity,x,y); } return this; } /** * 添加一些属性设置 * @param popupWindow */ private void apply(PopupWindow popupWindow){ popupWindow.setClippingEnabled(mClippEnable); if(mIgnoreCheekPress){ popupWindow.setIgnoreCheekPress(); } if(mInputMode!=-1){ popupWindow.setInputMethodMode(mInputMode); } if(mSoftInputMode!=-1){ popupWindow.setSoftInputMode(mSoftInputMode); } if(mOnDismissListener!=null){ popupWindow.setOnDismissListener(mOnDismissListener); } if(mOnTouchListener!=null){ popupWindow.setTouchInterceptor(mOnTouchListener); } popupWindow.setTouchable(mTouchable); } private PopupWindow build(){ if(mContentView == null){ mContentView = LayoutInflater.from(mContext).inflate(mResLayoutId,null); } // 2017.3.17 add // 获取当前Activity的window Activity activity = (Activity) mContentView.getContext(); if(activity!=null && mIsBackgroundDark){ //如果设置的值在0 - 1的范围内，则用设置的值，否则用默认值 final float alpha = (mBackgroundDrakValue > 0 && mBackgroundDrakValue < 1) ? mBackgroundDrakValue : DEFAULT_ALPHA; mWindow = activity.getWindow(); WindowManager.LayoutParams params = mWindow.getAttributes(); params.alpha = alpha; mWindow.addFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND); mWindow.setAttributes(params); } if(mWidth != 0 && mHeight!=0 ){ mPopupWindow = new PopupWindow(mContentView,mWidth,mHeight); }else{ mPopupWindow = new PopupWindow(mContentView, ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); } if(mAnimationStyle!=-1){ mPopupWindow.setAnimationStyle(mAnimationStyle); } apply(mPopupWindow);//设置一些属性 if(mWidth == 0 || mHeight == 0){ mPopupWindow.getContentView().measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED); //如果外面没有设置宽高的情况下，计算宽高并赋值 mWidth = mPopupWindow.getContentView().getMeasuredWidth(); mHeight = mPopupWindow.getContentView().getMeasuredHeight(); } // 添加dissmiss 监听 mPopupWindow.setOnDismissListener(this); //2017.6.27 add:fix 设置 setOutsideTouchable（false）点击外部取消的bug. // 判断是否点击PopupWindow之外的地方关闭 popWindow if(!enableOutsideTouchDisMiss){ //注意这三个属性必须同时设置，不然不能disMiss，以下三行代码在Android 4.4 上是可以，然后在Android 6.0以上，下面的三行代码就不起作用了，就得用下面的方法 mPopupWindow.setFocusable(true); mPopupWindow.setOutsideTouchable(false); mPopupWindow.setBackgroundDrawable(null); //注意下面这三个是contentView 不是PopupWindow mPopupWindow.getContentView().setFocusable(true); mPopupWindow.getContentView().setFocusableInTouchMode(true); mPopupWindow.getContentView().setOnKeyListener(new View.OnKeyListener() { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { mPopupWindow.dismiss(); return true; } return false; } }); //在Android 6.0以上 ，只能通过拦截事件来解决 mPopupWindow.setTouchInterceptor(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { final int x = (int) event.getX(); final int y = (int) event.getY(); if ((event.getAction() == MotionEvent.ACTION_DOWN) && ((x < 0) || (x >= mWidth) || (y < 0) || (y >= mHeight))) { Log.e(TAG,"out side "); Log.e(TAG,""+mPopupWindow.getWidth()+"height:"+mPopupWindow.getHeight()+" x:"+x+" y :"+y); return true; } else if (event.getAction() == MotionEvent.ACTION_OUTSIDE) { Log.e(TAG,"out side ..."); return true; } return false; } }); }else{ mPopupWindow.setFocusable(mIsFocusable); mPopupWindow.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); mPopupWindow.setOutsideTouchable(mIsOutside); } // update mPopupWindow.update(); return mPopupWindow; } @Override public void onDismiss() { dissmiss(); } /** * 关闭popWindow */ public void dissmiss(){ if(mOnDismissListener!=null){ mOnDismissListener.onDismiss(); } //如果设置了背景变暗，那么在dissmiss的时候需要还原 if(mWindow!=null){ WindowManager.LayoutParams params = mWindow.getAttributes(); params.alpha = 1.0f; mWindow.setAttributes(params); } if(mPopupWindow!=null && mPopupWindow.isShowing()){ mPopupWindow.dismiss(); } } public PopupWindow getPopupWindow() { return mPopupWindow; } public static class PopupWindowBuilder{ private CustomPopWindow mCustomPopWindow; public PopupWindowBuilder(Context context){ mCustomPopWindow = new CustomPopWindow(context); } public PopupWindowBuilder size(int width,int height){ mCustomPopWindow.mWidth = width; mCustomPopWindow.mHeight = height; return this; } public PopupWindowBuilder setFocusable(boolean focusable){ mCustomPopWindow.mIsFocusable = focusable; return this; } public PopupWindowBuilder setView(int resLayoutId){ mCustomPopWindow.mResLayoutId = resLayoutId; mCustomPopWindow.mContentView = null; return this; } public PopupWindowBuilder setView(View view){ mCustomPopWindow.mContentView = view; mCustomPopWindow.mResLayoutId = -1; return this; } public PopupWindowBuilder setOutsideTouchable(boolean outsideTouchable){ mCustomPopWindow.mIsOutside = outsideTouchable; return this; } /** * 设置弹窗动画 * @param animationStyle * @return */ public PopupWindowBuilder setAnimationStyle(int animationStyle){ mCustomPopWindow.mAnimationStyle = animationStyle; return this; } public PopupWindowBuilder setClippingEnable(boolean enable){ mCustomPopWindow.mClippEnable =enable; return this; } public PopupWindowBuilder setIgnoreCheekPress(boolean ignoreCheekPress){ mCustomPopWindow.mIgnoreCheekPress = ignoreCheekPress; return this; } public PopupWindowBuilder setInputMethodMode(int mode){ mCustomPopWindow.mInputMode = mode; return this; } public PopupWindowBuilder setOnDissmissListener(PopupWindow.OnDismissListener onDissmissListener){ mCustomPopWindow.mOnDismissListener = onDissmissListener; return this; } public PopupWindowBuilder setSoftInputMode(int softInputMode){ mCustomPopWindow.mSoftInputMode = softInputMode; return this; } public PopupWindowBuilder setTouchable(boolean touchable){ mCustomPopWindow.mTouchable = touchable; return this; } public PopupWindowBuilder setTouchIntercepter(View.OnTouchListener touchIntercepter){ mCustomPopWindow.mOnTouchListener = touchIntercepter; return this; } /** * 设置背景变暗是否可用 * @param isDark * @return */ public PopupWindowBuilder enableBackgroundDark(boolean isDark){ mCustomPopWindow.mIsBackgroundDark = isDark; return this; } /** * 设置背景变暗的值 * @param darkValue * @return */ public PopupWindowBuilder setBgDarkAlpha(float darkValue){ mCustomPopWindow.mBackgroundDrakValue = darkValue; return this; } /** * 设置是否允许点击 PopupWindow之外的地方，关闭PopupWindow * @param disMiss * @return */ public PopupWindowBuilder enableOutsideTouchableDissmiss(boolean disMiss){ mCustomPopWindow.enableOutsideTouchDisMiss = disMiss; return this; } public CustomPopWindow create(){ //构建PopWindow mCustomPopWindow.build(); return mCustomPopWindow; } } }
Step 2
make a example.举一个分享的例子吧。
点击分享，弹出这样的一个分享框。
Step 3
怎么用呢？
1.调用的函数，展示一个分享的pop弹框，用kotlin来写。 声明一下：popWindow_share是CustomPopWindow类型的。
fun showShareDialog(title:String,content:String,link:String,id:String){ val contentView:View=LayoutInflater.from(context).inflate(R.layout.ask_share,null) hanleShareDialog(contentView,title,content,link,id)//分享处理函数 popWindow_share= CustomPopWindow.PopupWindowBuilder(context) .setView(contentView) .enableBackgroundDark(true) .setBgDarkAlpha(0.7f) .setFocusable(true) .setOutsideTouchable(true) .setAnimationStyle(R.style.ask_share_anim) .create() popWindow_share!!.showAtLocation(ask_main_right_btn,Gravity.CENTER,0,0) }
2.分享的布局--ask_share.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <LinearLayout android:layout_width="500pt" android:layout_height="400pt" android:background="@drawable/textview_four_round" android:orientation="vertical" > <TextView android:id="@+id/ask_choose_tv" android:layout_width="500pt" android:layout_height="80pt" android:text="分享到" android:textSize="32pt" android:gravity="center" android:textColor="@color/black"/> <LinearLayout android:id="@+id/ask_share_first_line" android:orientation="horizontal" android:layout_marginLeft="50pt" android:layout_marginRight="50pt" android:layout_width="match_parent" android:layout_height="160pt"> <RelativeLayout android:id="@+id/ask_share_qq" android:layout_width="133pt" android:layout_height="133pt" android:background="@color/white" > <ImageView android:id="@+id/ask_share_qq_iv" android:layout_width="65pt" android:layout_height="65pt" android:layout_centerHorizontal="true" android:layout_marginTop="20pt" android:src="@mipmap/qq" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="QQ" android:layout_centerHorizontal="true" android:layout_below="@+id/ask_share_qq_iv" android:layout_marginTop="8pt" android:textSize="30pt" android:textColor="@color/share_words" /> </RelativeLayout> <RelativeLayout android:id="@+id/ask_share_wechat" android:layout_width="133pt" android:layout_height="133pt" android:background="@color/white" > <ImageView android:id="@+id/ask_share_wechat_iv" android:layout_width="65pt" android:layout_height="65pt" android:layout_centerHorizontal="true" android:layout_marginTop="20pt" android:src="@mipmap/wechat" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="微信" android:layout_centerHorizontal="true" android:layout_below="@+id/ask_share_wechat_iv" android:layout_marginTop="8pt" android:textSize="30pt" android:textColor="@color/share_words" /> </RelativeLayout> <RelativeLayout android:id="@+id/ask_share_copy" android:layout_width="134pt" android:layout_height="133pt" android:background="@color/white" > <ImageView android:id="@+id/ask_share_copy_iv" android:layout_width="65pt" android:layout_height="65pt" android:layout_centerHorizontal="true" android:layout_marginTop="20pt" android:src="@mipmap/link" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="复制链接" android:layout_centerHorizontal="true" android:layout_below="@+id/ask_share_copy_iv" android:layout_marginTop="8pt" android:textSize="30pt" android:textColor="@color/share_words" /> </RelativeLayout> </LinearLayout> <LinearLayout android:id="@+id/ask_share_second_line" android:layout_width="match_parent" android:orientation="horizontal" android:layout_marginLeft="50pt" android:layout_marginRight="50pt" android:layout_height="160pt"> <RelativeLayout android:id="@+id/ask_share_qq_zone" android:layout_width="133pt" android:layout_height="133pt" android:background="@color/white" > <ImageView android:id="@+id/ask_share_qq_zone_iv" android:layout_width="65pt" android:layout_height="65pt" android:layout_centerHorizontal="true" android:layout_marginTop="20pt" android:src="@mipmap/qzone" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="QQ空间" android:layout_centerHorizontal="true" android:layout_below="@+id/ask_share_qq_zone_iv" android:layout_marginTop="8pt" android:textSize="30pt" android:textColor="@color/share_words" /> </RelativeLayout> <RelativeLayout android:id="@+id/ask_share_wechat_friends" android:layout_width="133pt" android:layout_height="133pt" android:background="@color/white" > <ImageView android:id="@+id/ask_share_friends_iv" android:layout_width="65pt" android:layout_height="65pt" android:layout_centerHorizontal="true" android:layout_marginTop="20pt" android:src="@mipmap/moments" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="朋友圈" android:layout_centerHorizontal="true" android:layout_below="@+id/ask_share_friends_iv" android:layout_marginTop="8pt" android:textSize="30pt" android:textColor="@color/share_words" /> </RelativeLayout> </LinearLayout> </LinearLayout> </LinearLayout>
3.pop弹框的动画--ask_share_anim.xml
<!--问问分享弹框样式-->
<style name="ask_share_anim" parent="android:Animation">
<item name="android:windowEnterAnimation">@anim/pop_share_enter_anim</item>
<item name="android:windowExitAnimation">@anim/pop_share_exit_anim</item>
</style>
//pop_share_enter_anim.xml <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <scale android:fromXScale="0.6" android:toXScale="1.0" android:fromYScale="0.6" android:toYScale="1.0" android:pivotX="50%" android:pivotY="50%" android:duration="300" /> <alpha android:interpolator="@android:anim/decelerate_interpolator" android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="300" /> </set>
//pop_share_exit_anim.xml <?xml version="1.0" encoding="utf-8"?> <set xmlns:android="http://schemas.android.com/apk/res/android"> <scale android:fromXScale="1.0" android:toXScale="0.5" android:fromYScale="1.0" android:toYScale="0.5" android:pivotX="50%" android:pivotY="50%" android:duration="300" /> <alpha android:interpolator="@android:anim/accelerate_interpolator" android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="300" /> </set>
That's all.
If you have any qestions,please leave me messages .