android(9) ListView + ScrollView + ViewPager布局,viewpagerscrollview
一.ListView + ScrollView + ViewPager介面實現:
看了別人的源碼總要總結一下,ListView與ScrollView兩者之間是有衝突的,但有的時候,又不得不兩者一塊使用。主要就是ListView中item高度不確定,只要寫死或先算出所有的item的高度和就能顯示出你所需要的效果了。
:
主介面:
public class MainActivity extends Activity {// viewPagerprivate MyPageAdapter viewpageAdapter;private ArrayList<View> viewList;private ListView listview1;// listview資料條數private int dataNum = 10; //ScrollViewprivate MyScrollView myscrollview1;//ViewPagerprivate ViewPager viewpager;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_custom_morecustom_main);prepareData();//初始化viewmyscrollview1 = (MyScrollView)findViewById(R.id.myscrollview1);viewpager = (ViewPager) findViewById(R.id.viewpager);listview1 = (ListView) findViewById(R.id.listview1);viewpageAdapter = new MyPageAdapter();viewpager.setAdapter(viewpageAdapter);MyListAdapter1 adapter1 = new MyListAdapter1();listview1.setAdapter(adapter1);//設定高度new ListUtils(this).setListViewHeightBasedOnChildren(listview1);listview1.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> parent, View view,int position, long id) {Toast.makeText(MainActivity.this, "哈哈",Toast.LENGTH_SHORT).show();}});//設定ScrollView捲軸為頂部myscrollview1.smoothScrollTo(0,20);}// ViewPager的圖片初始化private void prepareData() {viewList = new ArrayList<View>();ImageView view1 = new ImageView(this);view1.setImageResource(R.drawable.w3);viewList.add(view1);ImageView view2 = new ImageView(this);view2.setImageResource(R.drawable.w2);viewList.add(view2);}private class MyListAdapter1 extends BaseAdapter {@Overridepublic int getCount() {return dataNum;}@Overridepublic Object getItem(int position) {return position;}@Overridepublic long getItemId(int position) {return position;}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View view = View.inflate(getApplicationContext(),R.layout.activity_listview_item, null);return view;}}class MyPageAdapter extends PagerAdapter {@Overridepublic int getCount() {return viewList.size();}@Overridepublic boolean isViewFromObject(View arg0, Object arg1) {return arg0 == arg1;}@Overridepublic void destroyItem(ViewGroup container, int position, Object object) {container.removeView(viewList.get(position));}@Overridepublic Object instantiateItem(ViewGroup container, int position) {container.addView(viewList.get(position));return viewList.get(position);}}//根據手機的解析度從 dp 的單位 轉成為 px(像素)public static int dip2px(Context context, float dpValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dpValue * scale);}//根據手機的解析度從 px(像素) 的單位 轉成為 dppublic static int px2dip(Context context, float pxValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (pxValue / scale);}}
MyScrollView:
public class MyScrollView extends ScrollView {public MyScrollView(Context context, AttributeSet attrs) {super(context, attrs);}//觸發攔截觸摸事件預設為false@Overridepublic boolean onInterceptTouchEvent(MotionEvent ev) {return false;}}
ListUtils:
public class ListUtils {private Context context;public ListUtils(Context context){this.context = context;}public void setListViewHeightBasedOnChildren(ListView listView) {// 擷取ListView對應的AdapterListAdapter listAdapter = listView.getAdapter();if (listAdapter == null) {return;}//顯示框顯示三個item的高度,因為已經寫死每個layout的高度是65int totalHeight = dip2px(context, 65) * 2;/* * 這是顯示完整的高度int totalHeight = 0 ;for (int i = 0; i < listAdapter.getCount(); i++) { totalHeight += dip2px(context, 65);}*/ViewGroup.LayoutParams params = listView.getLayoutParams();//設定listview顯示完整需要的高度,getDividerHeight()分割符佔有的高度params.height = totalHeight+ (listView.getDividerHeight() * (listAdapter.getCount() -1));listView.setLayoutParams(params);}//根據手機的解析度從 dp 的單位 轉成為 px(像素)public static int dip2px(Context context, float dpValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dpValue * scale );}//根據手機的解析度從 px(像素) 的單位 轉成為 dppublic static int px2dip(Context context, float pxValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (pxValue / scale );}}
主介面布局:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" > <com.example.testtexiao6.MyScrollView android:id="@+id/myscrollview1" android:layout_width="fill_parent" android:layout_height="wrap_content" > <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical" > <RelativeLayout android:id="@+id/relative1" android:layout_width="wrap_content" android:layout_height="wrap_content" > <android.support.v4.view.ViewPager android:id="@+id/viewpager" android:layout_width="fill_parent" android:layout_height="284dip" android:background="#ffcc00" /> <RelativeLayout android:id="@+id/relative2" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_below="@id/viewpager" > <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="40dip" android:gravity="center" android:orientation="vertical" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="2015年5月" android:textColor="#f6466c" android:textSize="14sp" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="horizontal" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="3dip" android:text="25日" android:textColor="#000000" android:textSize="16sp" android:textStyle="bold" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="3dip" android:text="周一" android:textSize="14sp" /> </LinearLayout> </LinearLayout> <View android:id="@+id/view" android:layout_width="1sp" android:layout_height="40dip" android:layout_centerInParent="true" android:background="@android:color/darker_gray" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="40dip" android:layout_toRightOf="@id/view" android:gravity="center" android:orientation="vertical" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="PM超標" android:textColor="#f6466c" android:textSize="14sp" /> </LinearLayout> </RelativeLayout> </RelativeLayout> <RelativeLayout android:layout_width="wrap_content" android:layout_height="wrap_content" > <LinearLayout android:id="@+id/ll_02" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <ImageView android:layout_width="match_parent" android:layout_height="4dip" android:background="@android:color/holo_blue_bright" /> <View android:layout_width="3dip" android:layout_height="30dip" android:layout_marginLeft="21dip" android:background="@android:color/darker_gray" /> </LinearLayout> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" > <LinearLayout android:id="@+id/ll_04" android:layout_width="wrap_content" android:layout_height="match_parent" android:orientation="vertical" > <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dip" android:src="@drawable/icon_morecustom_12" /> <View android:layout_width="3dip" android:layout_height="160dip" android:layout_marginLeft="21dip" android:background="@android:color/darker_gray" /> </LinearLayout> <TextView android:id="@+id/tv_title04" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignTop="@id/ll_04" android:layout_marginLeft="3dip" android:layout_toRightOf="@id/ll_04" android:text="今天已記錄10項" android:textColor="#f6466c" android:textSize="18sp" /> <ListView android:id="@+id/listview1" android:layout_width="280dip" android:layout_height="wrap_content" android:layout_alignLeft="@id/tv_title04" android:layout_below="@id/tv_title04" android:layout_marginTop="5dip" android:divider="@null" /> </RelativeLayout> <View android:layout_width="match_parent" android:layout_height="20dip" /> </LinearLayout> </com.example.testtexiao6.MyScrollView></RelativeLayout>
listview的item布局:
<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="65dip" android:background="@android:drawable/editbox_background" > <ImageView android:id="@+id/iv" android:layout_width="40dip" android:layout_height="40dip" android:layout_centerVertical="true" android:layout_marginLeft="5dip" android:background="@drawable/icon_morecustom_launcher" /> <TextView android:id="@+id/tv_1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="3dip" android:layout_marginTop="3dip" android:layout_toRightOf="@id/iv" android:text="濱州天氣晴朗" android:textSize="14sp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="1dip" android:layout_toRightOf="@id/tv_1" android:text="氣溫比較高" android:textColor="#f6466c" android:textSize="16sp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@id/tv_1" android:layout_below="@id/tv_1" android:layout_marginTop="6dip" android:text="適合人們穿短袖" android:textColor="@android:color/darker_gray" android:textSize="14sp" /> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/icon_morecustom_arrow" android:layout_centerVertical="true" android:layout_alignParentRight="true" /> <View android:layout_width="match_parent" android:layout_height="5dip" android:layout_alignParentBottom="true" /></RelativeLayout>