android popu筛选58,Builder设计模式-一句话构建万能PopupWindow

/**

* Description:TODO

* Create Time: 2017/10/23.15:31

* Author:jin

* Email:210980059@qq.com

*/

public class QuickPopup extends PopupWindow {

private View mPopView;

private QuickPopup.Builder mBuilder;

public T getViewById(@IdRes int viewId) {

return (T)mPopView.findViewById(viewId);

}

public View getRootView() {

return mPopView;

}

public QuickPopup(Builder builder) {

super(builder.mContext);

this.mBuilder = builder;

apply();

}

private void apply() {

mPopView = mBuilder.mPopView;

if (mPopView == null) {

mPopView = LayoutInflater.from(mBuilder.mContext).inflate(mBuilder.mLayoutId, null, false);

}

//设置rootView

setContentView(mPopView);

//设置宽高

setWidth(mBuilder.mWidth == 0 ? ViewGroup.LayoutParams.WRAP_CONTENT : mBuilder.mWidth);

setHeight(mBuilder.mHeight == 0 ? ViewGroup.LayoutParams.WRAP_CONTENT : mBuilder.mHeight);

//设置焦点

setTouchable(true);

setFocusable(true);

setBackgroundDrawable(new ColorDrawable());

//设置返回键事件, 返回

getContentView().setFocusableInTouchMode(true);

this.getContentView().setOnKeyListener(new View.OnKeyListener() {

@Override

public boolean onKey(View v, int keyCode, KeyEvent event) {

if (keyCode == KeyEvent.KEYCODE_BACK) {

dismiss();

return true;

}

return false;

}

});

//点击外部是否可取消.

if (!mBuilder.mOutsideTouchable) {

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 >= getContentView().getWidth()) || (y < 0) || (y >= getContentView().getHeight()))) {

return true;

} else if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {

return true;

}

return false;

}

});

}

//消失监听事件

setOnDismissListener(mBuilder.mOnDismissListener);

initViews();

}

/**

* 设置ui和点击事件

*/

private void initViews() {

//设置文字

SparseArray textsMap = mBuilder.mTexts;

int textsSize = textsMap.size();

for (int i = 0; i < textsSize; i++) {

int viewId = textsMap.keyAt(i);

TextView v = getViewById(viewId);

v.setText(textsMap.get(viewId));

}

//点击事件

SparseArray listenersMap = mBuilder.mClickListeners;

int listenersSize = listenersMap.size();

for (int i = 0; i < listenersSize; i++) {

int viewId = listenersMap.keyAt(i);

View v = getViewById(viewId);

v.setOnClickListener(listenersMap.get(viewId));

}

//设置图片

SparseArray imageResMap = mBuilder.mImageResMap;

int imageResSize = imageResMap.size();

for (int i = 0; i < imageResSize; i++) {

int viewId = imageResMap.keyAt(i);

ImageView v = getViewById(viewId);

v.setImageResource(imageResMap.get(viewId));

}

//设置可见性

SparseArray visibilityMap = mBuilder.mImageResMap;

int visibilitySize = visibilityMap.size();

for (int i = 0; i < visibilitySize; i++) {

int viewId = visibilityMap.keyAt(i);

View v = getViewById(viewId);

v.setVisibility(visibilityMap.get(viewId));

}

}

private int sp2px(float sp) {

return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, sp, mBuilder.mContext.getResources().getDisplayMetrics());

}

private float dp2px(int dip) {

return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip, mBuilder.mContext.getResources().getDisplayMetrics());

}

private static int getScreenHeight(Context context) {

return context.getResources().getDisplayMetrics().heightPixels;

}

private static int getScreenWidth(Context context) {

return context.getResources().getDisplayMetrics().widthPixels;

}

public static class Builder {

private Context mContext;

private int mLayoutId;

private int mWidth;

private int mHeight;

private View mPopView;

private boolean mOutsideTouchable;

private OnDismissListener mOnDismissListener;

private SparseArray mClickListeners;

private SparseArray mTexts;

private SparseArray mImageResMap;

private SparseArray mVisibilityMap;

/**

* 当pop在anchorView下方显示空间不够的时候, 是否需要显示上面.

*/

private boolean mIsNeedShowUp;

{

mOutsideTouchable = true;

mTexts = new SparseArray<>();

mClickListeners = new SparseArray<>();

mImageResMap = new SparseArray<>();

}

public Builder(Context context, View popView) {

this.mContext = context;

this.mPopView = popView;

}

public Builder(Context context, @LayoutRes int layoutId) {

this.mContext = context;

this.mLayoutId = layoutId;

}

public Builder setWH(int width, int height) {

this.mWidth = width;

this.mHeight = height;

return this;

}

public Builder setOnDisMissListener(OnDismissListener onDisMissListener) {

this.mOnDismissListener = onDisMissListener;

return this;

}

public Builder setOutsideTouchable(boolean touchable) {

this.mOutsideTouchable = touchable;

return this;

}

public Builder setClickListener(@IdRes int viewId, View.OnClickListener listener) {

mClickListeners.put(viewId, listener);

return this;

}

public Builder setText(@IdRes int viewId, String text) {

mTexts.put(viewId, text);

return this;

}

public Builder setImageRes(int viewId, @DrawableRes int resourceId) {

mImageResMap.put(viewId, resourceId);

return this;

}

/**

* 设置是否可见

*/

public Builder setVisibity(int viewId, int visibility) {

//设置可见性不常用， 集合的初始化放到这里。

if (mVisibilityMap == null) {

mVisibilityMap = new SparseArray<>();

}

mVisibilityMap.put(viewId, visibility);

return this;

}

public QuickPopup build() {

return new QuickPopup(this);

}

public QuickPopup show(View anchorView) {

return show(anchorView, 0, 0);

}

public QuickPopup show(View anchorView, int xOffset, int yOffset) {

QuickPopup popup = build();

int[] windowPos = calculatePopWindowPos(anchorView, popup.getRootView(), yOffset);

windowPos[0] += xOffset;

if (mIsNeedShowUp) {

windowPos[1] -= yOffset;

} else {

windowPos[1] += yOffset;

}

popup.showAtLocation(anchorView, Gravity.TOP | Gravity.START, windowPos[0], windowPos[1]);

return popup;

}

private int[] calculatePopWindowPos(final View anchorView, View popView, int yOffSet) {

final int[] windowPos = new int[2];

final int[] anchorLoc = new int[2];

// 获取锚点View在屏幕上的左上角坐标位置

anchorView.getLocationOnScreen(anchorLoc);

final int anchorHeight = anchorView.getHeight();

// 获取屏幕的高宽

final int screenHeight = getScreenHeight(anchorView.getContext());

final int screenWidth = getScreenWidth(anchorView.getContext());

popView.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);

// 计算popView的高宽

final int popViewHeight = popView.getMeasuredHeight();

final int popViewWidth = popView.getMeasuredWidth();

// 判断需要向上弹出还是向下弹出显示

mIsNeedShowUp = (screenHeight - (anchorLoc[1] + anchorHeight + yOffSet) < popViewHeight);

if (mIsNeedShowUp) {

mIsNeedShowUp = (screenHeight - (anchorLoc[1] + anchorHeight) < popViewHeight);

}

if (mIsNeedShowUp) {

windowPos[0] = anchorLoc[0];

windowPos[1] = anchorLoc[1] - popViewHeight;

} else {

windowPos[0] = anchorLoc[0];

windowPos[1] = anchorLoc[1] + anchorHeight;

}

return windowPos;

}

}

}