Android仿美团下拉菜单(商品选购)实例代码

public class MainActivity extends Activity implements
OnClickListener {
private ListView listView,popListView;
private ProgressBar progressBar;
private List<map<String,String="">> menuData1,menuData3;
private PopupWindow popMenu;
private SimpleAdapter menuAdapter1,menuAdapter2,menuAdapter3;
private LinearLayout product,sort,activity;
private ImageView cartIv;
private TextView productTv,sortTv,activityTv,titleTv;
privatE int green,grey;
private String currentProduct,currentSort,currentActivity;
privatE int menuIndex = 0;
privatE intent intent;
@Override
protected void onCreate(Bundle savedInstanceStatE) {
super.onCreate(savedInstanceStatE);
setContentView(R.layout.activity_supplier_list);
findView();
initMenuData();
initPopMenu();
}
private void initMenuData() {
menuData1 = new ArrayList<map<String,String="">>();
String[] menuStr1 = new String[] { "全部",String=""> map1;
for (int i = 0,len = menuStr1.length; i < len; ++i) {
map1 = new HashMap<String,String="">();
map1.put("name",menuStr1[i]);
menuData1.add(map1);
}
menuData2 = new ArrayList<map<String,String="">>();
String[] menuStr2 = new String[] { "综合排序",String=""> map2;
for (int i = 0,len = menuStr2.length; i < len; ++i) {
map2 = new HashMap<String,String="">();
map2.put("name",menuStr2[i]);
menuData2.add(map2);
}
menuData3 = new ArrayList<map<String,String="">>();
String[] menuStr3 = new String[] { "优惠活动",menuStr3[i]);
menuData3.add(map3);
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()) {
case R.id.supplier_list_product:
productTv.setTextColor(Color.parseColor("#39ac69"));
popListView.setAdapter(menuAdapter1);
popMenu.showAsDropDown(product,2);
menuIndex = 0;
break;
case R.id.supplier_list_sort:
sortTv.setTextColor(Color.parseColor("#39ac69"));
popListView.setAdapter(menuAdapter2);
popMenu.showAsDropDown(product,2);
menuIndex = 1;
break;
case R.id.supplier_list_activity:
activityTv.setTextColor(Color.parseColor("#39ac69"));
popListView.setAdapter(menuAdapter3);
popMenu.showAsDropDown(product,2);
menuIndex = 2;
break;
}
}
protected void findView() {
listView = (ListView) findViewById(R.id.supplier_list_lv);
product = (LinearLayout) findViewById(R.id.supplier_list_product);
sort = (LinearLayout) findViewById(R.id.supplier_list_sort);
activity = (LinearLayout) findViewById(R.id.supplier_list_activity);
productTv = (TextView) findViewById(R.id.supplier_list_product_tv);
sortTv = (TextView) findViewById(R.id.supplier_list_sort_tv);
activityTv = (TextView) findViewById(R.id.supplier_list_activity_tv);
titleTv = (TextView) findViewById(R.id.supplier_list_title_tv);
cartIv = (ImageView) findViewById(R.id.supplier_list_cart_iv);
progressBar = (ProgressBar) findViewById(R.id.progress);
product.setOnClickListener(this);
sort.setOnClickListener(this);
activity.setOnClickListener(this);
cartIv.setOnClickListener(this);
}
private void initPopMenu() {
initMenuData();
View contentView = View.inflate(this,R.layout.popwin_supplier_list,null);
popMenu = new PopupWindow(contentView,LinearLayout.LayoutParams.MATCH_PARENT);
popMenu.setOutsideTouchable(true);
popMenu.setBACkgroundDrawable(new BitmapDrawable());
popMenu.setFocusable(true);
popMenu.setAnimationStyle(R.style.popwin_anim_stylE);
popMenu.setOnDismissListener(new OnDismissListener() {
public void onDismiss() {
productTv.setTextColor(Color.parseColor("#5a5959"));
sortTv.setTextColor(Color.parseColor("#5a5959"));
activityTv.setTextColor(Color.parseColor("#5a5959"));
}
});
popListView = (ListView) contentView
.findViewById(R.id.popwin_supplier_list_lv);
contentView.findViewById(R.id.popwin_supplier_lisT_Bottom)
.setOnClickListener(new OnClickListener() {
public void onClick(View arg0) {
popMenu.dismiss();
}
});
menuAdapter1 = new SimpleAdapter(this,new int[] { R.id.listview_popwind_tv });
popListView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView arg0,View arg1,int pos,long arg3) {
popMenu.dismiss();
if (menuIndex == 0) {
currentProduct = menuData1.get(pos).get("name");
titleTv.setText(currentProduct);
productTv.setText(currentProduct);
Toast.makeText(MainActivity.this,currentProduct,Toast.LENGTH_SHORT).show();
} else if (menuIndex == 1) {
currentSort = menuData2.get(pos).get("name");
titleTv.setText(currentSort);
sortTv.setText(currentSort);
Toast.makeText(MainActivity.this,Toast.LENGTH_SHORT).show();
} else {
currentActivity = menuData3.get(pos).get("name");
titleTv.setText(currentActivity);
activityTv.setText(currentActivity);
Toast.makeText(MainActivity.this,currentActivity,Toast.LENGTH_SHORT).show();
}
}
});
}
}</String,>

二、加载圆形ProgressBar的显示

就是效果图中的那种加载ProgressBar，圆形ProgresBar可以用原生的Bar来实现，但样式单一，之前我做这种效果第一时间总是考虑到帧动画，但用这种方式需要有很多图片来链接起来，这样一来实现麻烦，二来图片多了占内存。下面用改变原生ProgressBar的动画来实现这种效果，非常简单：

<progressbar android:id="@+id/progress" android:indeterminatedrawable="@drawable/shape_progress" android:indeterminateduration="1000" android:layout_centerinparent="true" android:layout_height="wrap_content" android:layout_width="wrap_content"></progressbar>

<rotate android:fromdegrees="" android:pivotx="%" android:pivoty="%" android:todegrees="" xmlns:android="http://scheR_330_11845@as.android.com/apk/res/android">
<shape android:innerradiusratio="" android:shape="ring" android:thicknessratio="" android:uSELEvel="false">
<gradient android:centercolor="#cdaa" android:centery="." android:endcolor="#ffffff" android:startcolor="#ac" android:type="sweep" android:uSELEvel="false">
</gradient></shape>
</rotate>