如題，一開始想找現成的直接套，誰知道沒得，我就乾脆寫一下了
上圖看一下樣式，我這個只不過是個橫向佈局，都是listview
字符串是這個樣子的：
String result =
“內地綜藝,劇情,動作,動漫電影,臺灣,喜劇,國產,國產動漫,微電影,恐怖,戰爭,日本,日韓動漫,日韓綜藝,歐美,歐美動漫,歐美綜藝,泰國,海外,海外動漫,港臺動漫,港臺綜藝,愛情,電影解說,科幻,紀錄,綜藝,解說,韓國,香港”;
其中拆分爲數組的部分（這裏沒寫全，類和適配器寫完後，會重新列出來）
String[] str=result.split(",");
for (String string : str) {
System.out.println(string);
}
那麼我們開始吧
1.創建一個類，可以寫在activity裏面
class vod_class_C {
private String class_txt;
public String getClass_txt() {
return class_txt;
}
public void setClass_txt(String class_txt) {
this.class_txt = class_txt;
}
}
2.創建一個適配器，也可以寫在activity裏面
class vod_class_A extends BaseAdapter implements ListAdapter {
private ArrayList<vod_class_C> vod_class_cs;
private int id;
private Context context;
private LayoutInflater inflater;
public vod_class_A(int subpage_item, ClassifyActivity context, ArrayList<vod_class_C> vod_class_cs) {
this.vod_class_cs = vod_class_cs;
this.context = context;
this.id = subpage_item;
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return vod_class_cs.size();
}
@Override
public Object getItem(int i) {
return vod_class_cs.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@SuppressLint("WrongConstant")
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
TextView class_txt = null;
TextView pgcount = null;
vod_class_A.ViewHolder viewHolder;
if (view == null) {
view = inflater.inflate(id, null);
class_txt = (TextView) view.findViewById(R.id.tv_str);
view.setTag(new ViewHolder(class_txt));
} else {
vod_class_A.ViewHolder viewHolder1 = (vod_class_A.ViewHolder) view.getTag(); // 重新獲取ViewHolder
class_txt = viewHolder1.class_txt;
}
vod_class_C vcs = (vod_class_C) vod_class_cs.get(i); // 獲取當前項的實例
class_txt.setText(vcs.getClass_txt().toString());
return view;
}
private final class ViewHolder {
TextView class_txt = null;
public ViewHolder(TextView class_txt) {
this.class_txt = class_txt;
}
}
}
聲明
適配器和類
private vod_class_C vod_class_c;
private vod_class_A vodClassA;
private HorizontalListView vod_class;
private List<vod_class_C> vod_class_cArrayList = new ArrayList<vod_class_C>();
找到listview控件
vod_class =(HorizontalListView)findViewById(R.id.vod_class);
寫完後就可以開始準備充填了
String result =“內地綜藝,劇情,動作,動漫電影,臺灣,喜劇,國產,國產動漫,微電影,恐怖,戰爭,日本,日韓動漫,日韓綜藝,歐美,歐美動漫,歐美綜藝,泰國,海外,海外動漫,港臺動漫,港臺綜藝,愛情,電影解說,科幻,紀錄,綜藝,解說,韓國,香港”;
String[] str=result.split(",");
for (String string : str) {
vod_class_c = new vod_class_C();
vod_class_c.setClass_txt(string);
vod_class_cArrayList.add(vod_class_c);
}
Message msg = new Message();
msg.what = 2;
handler.sendMessage(msg);//用activity中的handler發送消息
下面的是handler
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case 2:
vod_classClickListener((ArrayList<vod_class_C>) vod_class_cArrayList);
break;
}
}
};
點擊事件
public void vod_classClickListener(ArrayList<vod_class_C> vod_class_cs) {
vodClassA = new vod_class_A(R.layout.classify_item, this, vod_class_cs);
vod_class.setAdapter(vodClassA);
vod_class.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
//Toast.makeText(getContext(), "Click ++ item" + i, Toast.LENGTH_SHORT).show();
final TextView tv_str = (TextView) view.findViewById(R.id.tv_str);
String tv_str1 = tv_str.getText().toString();
//拿到字，你要做的事，在這裏寫，activity跳轉，settext之類的
}
});
}
佈局classify_item
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#ffff"
android:orientation="horizontal">
<TextView
android:layout_margin="6dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="恐怖"
android:id="@+id/tv_str"
/>
</LinearLayout>
主佈局就一個listview
<cc.booku.owlbox.Classify.HorizontalListView
android:id="@+id/vod_class"
android:layout_width="match_parent"
android:layout_height="40dp">
</cc.booku.owlbox.Classify.HorizontalListView>
下面是一些輔助可看不看
item背景
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle"
>
<corners android:radius="20dp"/>
<padding android:left="13dp" android:right="13dp" android:top="7dp" android:bottom="7dp"/>
<solid android:color="@color/bg_huise_ff"/>
</shape>
需要橫向佈局看這裏
package cc.booku.owlbox.Classify;
/*
* HorizontalListView.java v1.5
*
*
* The MIT License
* Copyright (c) 2011 Paul Soucy ([email protected])
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
*/
import android.content.Context;
import android.database.DataSetObserver;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.GestureDetector.OnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListAdapter;
import android.widget.Scroller;
import java.util.LinkedList;
import java.util.Queue;
public class HorizontalListView extends AdapterView<ListAdapter> {
public boolean mAlwaysOverrideTouch = true;
protected ListAdapter mAdapter;
private int mLeftViewIndex = -1;
private int mRightViewIndex = 0;
protected int mCurrentX;
protected int mNextX;
private int mMaxX = Integer.MAX_VALUE;
private int mDisplayOffset = 0;
protected Scroller mScroller;
private GestureDetector mGesture;
private Queue<View> mRemovedViewQueue = new LinkedList<View>();
private OnItemSelectedListener mOnItemSelected;
private OnItemClickListener mOnItemClicked;
private OnItemLongClickListener mOnItemLongClicked;
private boolean mDataChanged = false;
public HorizontalListView(Context context, AttributeSet attrs) {
super(context, attrs);
initView();
}
private synchronized void initView() {
mLeftViewIndex = -1;
mRightViewIndex = 0;
mDisplayOffset = 0;
mCurrentX = 0;
mNextX = 0;
mMaxX = Integer.MAX_VALUE;
mScroller = new Scroller(getContext());
mGesture = new GestureDetector(getContext(), mOnGesture);
}
@Override
public void setOnItemSelectedListener(OnItemSelectedListener listener) {
mOnItemSelected = listener;
}
@Override
public void setOnItemClickListener(OnItemClickListener listener){
mOnItemClicked = listener;
}
@Override
public void setOnItemLongClickListener(OnItemLongClickListener listener) {
mOnItemLongClicked = listener;
}
private DataSetObserver mDataObserver = new DataSetObserver() {
@Override
public void onChanged() {
synchronized(HorizontalListView.this){
mDataChanged = true;
}
invalidate();
requestLayout();
}
@Override
public void onInvalidated() {
reset();
invalidate();
requestLayout();
}
};
@Override
public ListAdapter getAdapter() {
return mAdapter;
}
@Override
public View getSelectedView() {
//TODO: implement
return null;
}
@Override
public void setAdapter(ListAdapter adapter) {
if(mAdapter != null) {
mAdapter.unregisterDataSetObserver(mDataObserver);
}
mAdapter = adapter;
mAdapter.registerDataSetObserver(mDataObserver);
reset();
}
private synchronized void reset(){
initView();
removeAllViewsInLayout();
requestLayout();
}
@Override
public void setSelection(int position) {
//TODO: implement
}
private void addAndMeasureChild(final View child, int viewPos) {
LayoutParams params = child.getLayoutParams();
if(params == null) {
params = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
}
addViewInLayout(child, viewPos, params, true);
child.measure(MeasureSpec.makeMeasureSpec(getWidth(), MeasureSpec.AT_MOST),
MeasureSpec.makeMeasureSpec(getHeight(), MeasureSpec.AT_MOST));
}
@Override
protected synchronized void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if(mAdapter == null){
return;
}
if(mDataChanged){
int oldCurrentX = mCurrentX;
initView();
removeAllViewsInLayout();
mNextX = oldCurrentX;
mDataChanged = false;
}
if(mScroller.computeScrollOffset()){
int scrollx = mScroller.getCurrX();
mNextX = scrollx;
}
if(mNextX <= 0){
mNextX = 0;
mScroller.forceFinished(true);
}
if(mNextX >= mMaxX) {
mNextX = mMaxX;
mScroller.forceFinished(true);
}
int dx = mCurrentX - mNextX;
removeNonVisibleItems(dx);
fillList(dx);
positionItems(dx);
mCurrentX = mNextX;
if(!mScroller.isFinished()){
post(new Runnable(){
@Override
public void run() {
requestLayout();
}
});
}
}
private void fillList(final int dx) {
int edge = 0;
View child = getChildAt(getChildCount()-1);
if(child != null) {
edge = child.getRight();
}
fillListRight(edge, dx);
edge = 0;
child = getChildAt(0);
if(child != null) {
edge = child.getLeft();
}
fillListLeft(edge, dx);
}
private void fillListRight(int rightEdge, final int dx) {
while(rightEdge + dx < getWidth() && mRightViewIndex < mAdapter.getCount()) {
View child = mAdapter.getView(mRightViewIndex, mRemovedViewQueue.poll(), this);
addAndMeasureChild(child, -1);
rightEdge += child.getMeasuredWidth();
if(mRightViewIndex == mAdapter.getCount()-1) {
mMaxX = mCurrentX + rightEdge - getWidth();
}
if (mMaxX < 0) {
mMaxX = 0;
}
mRightViewIndex++;
}
}
private void fillListLeft(int leftEdge, final int dx) {
while(leftEdge + dx > 0 && mLeftViewIndex >= 0) {
View child = mAdapter.getView(mLeftViewIndex, mRemovedViewQueue.poll(), this);
addAndMeasureChild(child, 0);
leftEdge -= child.getMeasuredWidth();
mLeftViewIndex--;
mDisplayOffset -= child.getMeasuredWidth();
}
}
private void removeNonVisibleItems(final int dx) {
View child = getChildAt(0);
while(child != null && child.getRight() + dx <= 0) {
mDisplayOffset += child.getMeasuredWidth();
mRemovedViewQueue.offer(child);
removeViewInLayout(child);
mLeftViewIndex++;
child = getChildAt(0);
}
child = getChildAt(getChildCount()-1);
while(child != null && child.getLeft() + dx >= getWidth()) {
mRemovedViewQueue.offer(child);
removeViewInLayout(child);
mRightViewIndex--;
child = getChildAt(getChildCount()-1);
}
}
private void positionItems(final int dx) {
if(getChildCount() > 0){
mDisplayOffset += dx;
int left = mDisplayOffset;
for(int i=0;i<getChildCount();i++){
View child = getChildAt(i);
int childWidth = child.getMeasuredWidth();
child.layout(left, 0, left + childWidth, child.getMeasuredHeight());
left += childWidth + child.getPaddingRight();
}
}
}
public synchronized void scrollTo(int x) {
mScroller.startScroll(mNextX, 0, x - mNextX, 0);
requestLayout();
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
boolean handled = super.dispatchTouchEvent(ev);
handled |= mGesture.onTouchEvent(ev);
return handled;
}
protected boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
synchronized(HorizontalListView.this){
mScroller.fling(mNextX, 0, (int)-velocityX, 0, 0, mMaxX, 0, 0);
}
requestLayout();
return true;
}
protected boolean onDown(MotionEvent e) {
mScroller.forceFinished(true);
return true;
}
private OnGestureListener mOnGesture = new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onDown(MotionEvent e) {
return HorizontalListView.this.onDown(e);
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
return HorizontalListView.this.onFling(e1, e2, velocityX, velocityY);
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {
synchronized(HorizontalListView.this){
mNextX += (int)distanceX;
}
requestLayout();
return true;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
for(int i=0;i<getChildCount();i++){
View child = getChildAt(i);
if (isEventWithinView(e, child)) {
if(mOnItemClicked != null){
mOnItemClicked.onItemClick(HorizontalListView.this, child, mLeftViewIndex + 1 + i, mAdapter.getItemId( mLeftViewIndex + 1 + i ));
}
if(mOnItemSelected != null){
mOnItemSelected.onItemSelected(HorizontalListView.this, child, mLeftViewIndex + 1 + i, mAdapter.getItemId( mLeftViewIndex + 1 + i ));
}
break;
}
}
return true;
}
@Override
public void onLongPress(MotionEvent e) {
int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
View child = getChildAt(i);
if (isEventWithinView(e, child)) {
if (mOnItemLongClicked != null) {
mOnItemLongClicked.onItemLongClick(HorizontalListView.this, child, mLeftViewIndex + 1 + i, mAdapter.getItemId(mLeftViewIndex + 1 + i));
}
break;
}
}
}
private boolean isEventWithinView(MotionEvent e, View child) {
Rect viewRect = new Rect();
int[] childPosition = new int[2];
child.getLocationOnScreen(childPosition);
int left = childPosition[0];
int right = left + child.getWidth();
int top = childPosition[1];
int bottom = top + child.getHeight();
viewRect.set(left, top, right, bottom);
return viewRect.contains((int) e.getRawX(), (int) e.getRawY());
}
};
}