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android(九) ListView + ScrollView + ViewPager布局

热度:675   发布时间:2016-04-28 00:46:33.0
android(9) ListView + ScrollView + ViewPager布局

一.ListView + ScrollView + ViewPager界面实现:

     看了别人的源码总要总结一下,ListView与ScrollView两者之间是有冲突的,但有的时候,又不得不两者一块使用。主要就是ListView中item高度不确定,只要写死或先算出所有的item的高度和就能显示出你所需要的效果了。

 效果图:


  

 


主界面:

public class MainActivity extends Activity {	// viewPager	private MyPageAdapter viewpageAdapter;	private ArrayList<View> viewList;	private ListView listview1;	// listview数据条数	private int dataNum = 10;    //ScrollView	private MyScrollView myscrollview1;	//ViewPager	private ViewPager viewpager;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		requestWindowFeature(Window.FEATURE_NO_TITLE);		setContentView(R.layout.activity_custom_morecustom_main);		prepareData();		//初始化view		myscrollview1 = (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);		//设置高度		new ListUtils(this).setListViewHeightBasedOnChildren(listview1);		listview1.setOnItemClickListener(new OnItemClickListener() {			@Override			public void onItemClick(AdapterView<?> parent, View view,					int position, long id) {				Toast.makeText(MainActivity.this, "哈哈",						Toast.LENGTH_SHORT).show();			}		});		//设置ScrollView滚动条为顶部		myscrollview1.smoothScrollTo(0,20);		}			// ViewPager的图片初始化	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 {		@Override		public int getCount() {			return dataNum;		}		@Override		public Object getItem(int position) {			return position;		}		@Override		public long getItemId(int position) {			return position;		}		@Override		public 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 {		@Override		public int getCount() {			return viewList.size();		}		@Override		public boolean isViewFromObject(View arg0, Object arg1) {			return arg0 == arg1;		}		@Override		public void destroyItem(ViewGroup container, int position, Object object) {			container.removeView(viewList.get(position));		}		@Override		public Object instantiateItem(ViewGroup container, int position) {			container.addView(viewList.get(position));			return viewList.get(position);		}	}	//根据手机的分辨率从 dp 的单位 转成为 px(像素)	public static int dip2px(Context context, float dpValue) {		final float scale = context.getResources().getDisplayMetrics().density;		return (int) (dpValue * scale);	}	//根据手机的分辨率从 px(像素) 的单位 转成为 dp	public 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);	}	//触发拦截触摸事件默认为false	@Override	public 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) {		//  获取ListView对应的Adapter		ListAdapter listAdapter = listView.getAdapter();		if (listAdapter == null) {			return;		}		//显示框显示三个item的高度,因为已经写死每个layout的高度是65		int totalHeight = dip2px(context, 65) * 2;				/*		 * 这是显示完整的高度		int totalHeight = 0 ;		for (int i = 0; i < listAdapter.getCount(); i++) { 			totalHeight += dip2px(context, 65);		}*/		ViewGroup.LayoutParams params = listView.getLayoutParams();		//设置listview显示完整需要的高度,getDividerHeight()分割符占有的高度		params.height = totalHeight+ (listView.getDividerHeight() * (listAdapter.getCount() -1));		listView.setLayoutParams(params);	}		//根据手机的分辨率从 dp 的单位 转成为 px(像素)	public static int dip2px(Context context, float dpValue) {		final float scale = context.getResources().getDisplayMetrics().density;		return (int) (dpValue * scale );	}	//根据手机的分辨率从 px(像素) 的单位 转成为 dp	public static int px2dip(Context context, float pxValue) {		final float scale = context.getResources().getDisplayMetrics().density;		return (int) (pxValue / scale );	}}

主界面布局:

<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超标"                            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="今天已记录10项"                    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="滨州天气晴朗"        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="气温比较高"        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="适合人们穿短袖"        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>








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