版权声明： https://blog.csdn.net/xu_coding/article/details/81515421
有没有觉得常见的弹出菜单都很丑，常见的上下文菜单也很难看，当弹出一个菜单提供功能的时候，整个一点效果都没有。显得很突兀。 下面介绍一个菜单。重写了popupwindow 。效果图如下。 github地址github传送门
话不多说上代码：
public class PathPopupWindow extends PopupWindow {
private final int CONST_R = 100;//圆半径
private final int CONST_ICON_SIZE = 35;
private Context context;
private FrameLayout frameLayout;
private ImageView imageView;
private View view_circle;
private List<View> itemViews = new ArrayList<View>();
private int itempadding = 0;
private OnPathItemClickListener mOnPathItemClickListener;
public void setOnPathItemClickListener(OnPathItemClickListener mOnPathItemClickListener){
this.mOnPathItemClickListener = mOnPathItemClickListener;
}
protected PathPopupWindow() {
}
public PathPopupWindow(Context context, List<PathItem> items) {
this(context,items, Color.BLACK,12, Color.TRANSPARENT);
}
public PathPopupWindow(Context context, List<PathItem> items, int textColor, int textSize, int itembgResId) {
super(context);
this.context = context;
setFocusable(true);
itempadding = DensityUtil.dip2px(context, 8);
int itemWidth = DensityUtil.dip2px(context,CONST_ICON_SIZE + textSize + 4) + itempadding * 2;
int width = DensityUtil.dip2px(context, CONST_R * 2 + 30) + itemWidth;
int height = DensityUtil.dip2px(context, CONST_R * 2 + 30 + textSize) + itemWidth;
setWidth(width);
setHeight(height);
setBackgroundDrawable(new ColorDrawable());
frameLayout = new FrameLayout(context);
view_circle = new View(context);
view_circle.setBackgroundResource(R.drawable.bg_circle);
int Radius = DensityUtil.dip2px(context, CONST_R);
int pading = (width - Radius * 2)/2;
FrameLayout.LayoutParams view_flp = new FrameLayout.LayoutParams(Radius * 2, Radius * 2);
view_flp.leftMargin = view_flp.topMargin = (width - Radius * 2) / 2;
frameLayout.addView(view_circle, view_flp);
for(int i = 0;i<items.size();i++){
//确定每个元素的显示位置。
LinearLayout linearLayout = createItem(i,items.get(i),textColor,textSize,itembgResId);
int x = (int) (Math.cos(2 * Math.PI / items.size() * i + Math.PI / 2) * Radius);
int y = (int) (Math.sin(2 * Math.PI / items.size() * i + Math.PI / 2) * Radius);
FrameLayout.LayoutParams flp = new FrameLayout.LayoutParams(itemWidth,itemWidth);
flp.leftMargin = Radius + x + pading - itemWidth / 2;
flp.topMargin = Radius - y + pading - itemWidth / 2;
frameLayout.addView(linearLayout, flp);
itemViews.add(linearLayout);
}
imageView = new ImageView(context);
imageView.setImageResource(R.drawable.tianmao);
FrameLayout.LayoutParams iv_flp = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
iv_flp.gravity = Gravity.CENTER;
iv_flp.topMargin = -DensityUtil.dip2px(context, textSize ) / 2;
frameLayout.addView(imageView,iv_flp);
setContentView(frameLayout); //设置这个popupWindow显示的内容
frameLayout.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
dismiss();
}
});
}
public void show(View view){
showAtLocation(view, Gravity.CENTER, 0, 0);
//显示的动画
{
RotateAnimation rotate = new RotateAnimation(360, 0,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotate.setDuration(500);
rotate.setFillAfter(true);
imageView.startAnimation(rotate);
}
{
ScaleAnimation scaleAnimation = new ScaleAnimation(0.3f, 1f, 0.3f, 1f, Animation.RELATIVE_TO_SELF,0.5f,
Animation.RELATIVE_TO_SELF,0.5f);
scaleAnimation.setDuration(300);
scaleAnimation.setFillAfter(true);
view_circle.startAnimation(scaleAnimation);
}
int Radius = DensityUtil.dip2px(context, CONST_R);
for(int i = 0;i<itemViews.size();i++){
int x = (int) (Math.cos(2 * Math.PI / itemViews.size() * i + Math.PI / 2) * Radius);
int y = (int) (Math.sin(2 * Math.PI / itemViews.size() * i + Math.PI / 2) * Radius);
TranslateAnimation translateAnimation = new TranslateAnimation(-x, 0F, y, 0F);
translateAnimation.setDuration(500);
translateAnimation.setFillAfter(true);
translateAnimation.setInterpolator(new OvershootInterpolator(2F));
itemViews.get(i).startAnimation(translateAnimation);
}
}
private boolean isdimissing = false;
@Override
public void dismiss() {
if(isdimissing || !isShowing()){
return;
}
isdimissing = true;
//消失的动画
{
RotateAnimation rotate = new RotateAnimation(0, 360,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
rotate.setDuration(500);
rotate.setFillAfter(false);
imageView.startAnimation(rotate);
}
{
ScaleAnimation scaleAnimation = new ScaleAnimation(1f, 0.3f, 1f, 0.3f, Animation.RELATIVE_TO_SELF,0.5f,
Animation.RELATIVE_TO_SELF,0.5f);
scaleAnimation.setDuration(500);
scaleAnimation.setFillAfter(false);
view_circle.startAnimation(scaleAnimation);
}
int Radius = DensityUtil.dip2px(context, CONST_R);
for(int i = 0;i<itemViews.size();i++){
int x = (int) (Math.cos(2 * Math.PI / itemViews.size() * i + Math.PI / 2) * Radius);
int y = (int) (Math.sin(2 * Math.PI / itemViews.size() * i + Math.PI / 2) * Radius);
TranslateAnimation translateAnimation = new TranslateAnimation(0F, -x, 0F, y);
translateAnimation.setDuration(300);
translateAnimation.setFillAfter(false);
if(i == itemViews.size() - 1){
translateAnimation.setAnimationListener(new AnimationListener() {
public void onAnimationStart(Animation animation) {
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
PathPopupWindow.super.dismiss();
isdimissing = false;
}
});
}
itemViews.get(i).startAnimation(translateAnimation);
}
}
private LinearLayout createItem(final int position, final PathItem item, int textColor, int textSize, int itembgResId){
LinearLayout linearLayout = new LinearLayout(context);
linearLayout.setPadding(itempadding, itempadding, itempadding, itempadding);
if(item.backgroundResId != -1){
linearLayout.setBackgroundResource(item.backgroundResId);
}else if(itembgResId != -1){
linearLayout.setBackgroundResource(itembgResId);
}else{
linearLayout.setBackgroundColor(Color.TRANSPARENT);
}
linearLayout.setOrientation(LinearLayout.VERTICAL);
final ImageView imageView = new ImageView(context);
if(item.imageResId != -1){
imageView.setImageResource(item.imageResId);
ColorMatrix cMatrix = new ColorMatrix();
cMatrix.set(new float[]{1, 0, 0, 0, 255, 0, 1, 0, 0, 255, // 改变亮度
0, 0, 1, 0, 255, 0, 0, 0, 1, 0});
imageView.setColorFilter(new ColorMatrixColorFilter(cMatrix));
}else{
try {
imageView.setImageDrawable(context.getPackageManager().getApplicationIcon(context.getPackageName()));
}catch (Exception e){
e.printStackTrace();
}
}
LinearLayout.LayoutParams llp_imageview = new LinearLayout.LayoutParams(DensityUtil.dip2px(context, CONST_ICON_SIZE),
DensityUtil.dip2px(context, CONST_ICON_SIZE));
llp_imageview.gravity = Gravity.CENTER_HORIZONTAL;
linearLayout.addView(imageView, llp_imageview);
LinearLayout.LayoutParams llp = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
llp.gravity = Gravity.CENTER_HORIZONTAL;
TextView textView = new TextView(context);
textView.setTextColor(textColor);
textView.setTextSize(textSize);
textView.setText(item.name);
linearLayout.addView(textView, llp);
linearLayout.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if(mOnPathItemClickListener != null){
mOnPathItemClickListener.onItemClick(position, item);
}
}
});
return linearLayout;
}
public interface OnPathItemClickListener{
void onItemClick(int position, PathItem item);
}
}