RT：
先上图
在Hot Keywords下面实现的是自动换行的效果
直接附上代码
如下
自定义布局CustomListView
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public class CustomListView extends RelativeLayout {
private String TAG = CustomListView.class.getSimpleName();
private CustomAdapter myCustomAdapter;
public CustomListView(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onLayout(boolean arg0, int argLeft, int argTop, int argRight, int argBottom) {
Log.i(TAG, "L:"+argLeft+" T:"+argTop+" R:"+argRight+" B:"+argBottom);
final int count = getChildCount();
int row=0;
int lengthX=0;
int lengthY=0;
for(int i=0;i<count;i++){
final View child = this.getChildAt(i);
int width = child.getMeasuredWidth();
int height = child.getMeasuredHeight();
if(lengthX == 0){
lengthX += width;
}else{
lengthX += (width+getDividerWidth());
}
if((i == 0 && lengthX<=argRight)){
lengthY += height;
}
if(lengthX>argRight){
lengthX = width;
lengthY += getDividerHeight()+height;
row++;
child.layout(lengthX-width, lengthY-height, lengthX, lengthY);
}else{
child.layout(lengthX-width, lengthY-height, lengthX, lengthY);
}
}
android.view.ViewGroup.LayoutParams lp = CustomListView.this.getLayoutParams();
lp.height = lengthY;
CustomListView.this.setLayoutParams(lp);
if(isAddChildType()){
new Thread(new RefreshCustomThread()).start();
}
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int width = MeasureSpec.getSize(widthMeasureSpec);
int height = MeasureSpec.getSize(heightMeasureSpec);
setMeasuredDimension(width, height);
for (int i = 0; i < getChildCount(); i++) {
View child = getChildAt(i);
child.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
}
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
private static boolean addChildType;
final static boolean isAddChildType() {
return addChildType;
}
public static void setAddChildType(boolean addChildType) {
CustomListView.addChildType = addChildType;
}
private int dividerHeight = 0;
final int getDividerHeight() {
return dividerHeight;
}
public void setDividerHeight(int dividerHeight) {
this.dividerHeight = dividerHeight;
}
private int dividerWidth = 0;
final int getDividerWidth() {
return dividerWidth;
}
public void setDividerWidth(int dividerWidth) {
this.dividerWidth = dividerWidth;
}
public void setAdapter(CustomAdapter adapter){
this.myCustomAdapter = adapter;
setAddChildType(true);
adapter.notifyCustomListView(CustomListView.this);
}
/**
*
* @param listener
*/
public void setOnItemClickListener(OnItemClickListener listener){
myCustomAdapter.setOnItemClickListener(listener);
}
/**
* Corresponding Item long click event
*
* @param listener
*/
public void setOnItemLongClickListener(OnItemLongClickListener listener){
myCustomAdapter.setOnItemLongClickListener(listener);
}
private final Handler handler = new Handler(Looper.getMainLooper()){
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
try{
if(msg.getData().containsKey("getRefreshThreadHandler")){
setAddChildType(false);
myCustomAdapter.notifyCustomListView(CustomListView.this);
}
}catch(Exception e){
Log.w(TAG, e);
}
}
};
private final class RefreshCustomThread implements Runnable{
@Override
public void run() {
Bundle b = new Bundle();
try{
Thread.sleep(50);
}catch(Exception e){
}finally{
b.putBoolean("getRefreshThreadHandler", true);
sendMsgHanlder(handler, b);
}
}
}
private final void sendMsgHanlder(Handler handler,Bundle data){
Message msg = handler.obtainMessage();
msg.setData(data);
handler.sendMessage(msg);
}
}
|
CustomAdapter
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public class CustomAdapter{
private String TAG = CustomAdapter.class.getSimpleName();
private View myView;
private ViewGroup myViewGroup;
private CustomListView myCustomListView;
private OnItemClickListener listener;
private OnItemLongClickListener longListener;
public int getCount() {
return 0;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
return null;
}
/**
*
* Add all the View controls to the custom SexangleViewList
* When you use this SexangleViewList should be instantiated first and then call
* Because here is not intercept and throw such as null pointer exception
* The name is called mySexangleView View passed in must be empty
* Of course the ViewGroup transfer time must also be empty
*
*/
private final void getAllViewAddSexangle(){
this.myCustomListView.removeAllViews();
for(int i = 0 ; i < getCount() ; i++){
View viewItem = getView(i, this.myView, this.myViewGroup);
this.myCustomListView.addView(viewItem,i);
}
}
/**
*
* The refresh SexangleListView interface
* Here is set to True representative will execute reset CustomListView twice
* This method is called before, please first instantiation mySexangleListView
* Otherwise, this method in redraw CustomListView abnormal happens
*
*/
public void notifyDataSetChanged(){
CustomListView.setAddChildType(true);
notifyCustomListView(this.myCustomListView);
}
/**
* Redraw the Custom controls for the first time, you should invoke this method
* In order to ensure that each load data do not repeat to get rid of the
* custom of the ListView all View objects
* The following will be set up to monitor events as controls
* First load regardless whether OnItemClickListener and OnItemLongClickListener is NULL,
* they do not influence events Settings
*
* @param formateList
*/
public void notifyCustomListView(CustomListView formateList){
this.myCustomListView = formateList;
myCustomListView.removeAllViews();
getAllViewAddSexangle();
setOnItemClickListener(listener);
setOnItemLongClickListener(longListener);
}
/**
* Set the click event of each View, external can realize the interface for your call
*
* @param listener
*/
public void setOnItemClickListener(final OnItemClickListener listener){
this.listener = listener;
for(int i = 0; i < myCustomListView.getChildCount(); i++){
final int parame = i;
View view = myCustomListView.getChildAt(i);
view.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Log.i(TAG, "当前Item的值 : "+parame);
listener.onItemClick(null, v, parame, getCount());
}
});
}
}
/**
* Set each long press event, the View outside can realize the interface for your call
*
* @param listener
*/
public void setOnItemLongClickListener(final OnItemLongClickListener listener){
this.longListener = listener;
for(int i = 0; i < myCustomListView.getChildCount(); i++){
final int parame = i;
View view = myCustomListView.getChildAt(i);
view.setOnLongClickListener(new OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
listener.onItemLongClick(null, v, parame, getCount());
return true;
}
});
}
}
}
|
CustomListView需要用到的适配器MainSexangleAdapter需要继承上面的CustomAdapter
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public class MainSexangleAdapter extends CustomAdapter {
private List<String> list;
private Context con;
private LayoutInflater inflater;
public MainSexangleAdapter(Context context, List<String> list) {
this.con = context;
this.list = list;
inflater = LayoutInflater.from(con);
}
@Override
public int getCount() {
return list.size();
}
@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) {
ViewHolder vh = null;
if(convertView == null){
vh = new ViewHolder();
convertView = inflater.inflate(R.layout.auto_adapter, null);
vh.tv = (TextView) convertView.findViewById(R.id.adapter_text);
convertView.setTag(vh);
}else{
vh = (ViewHolder) convertView.getTag();
}
String str = list.get(position);
vh.tv.setText(str);
return convertView;
}
public class ViewHolder{
public TextView tv;
}
}
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然后是两个接口OnItemClickListener
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public interface OnItemClickListener {
public void onItemClick(AdapterView<?> arg0,View arg1,int arg2,long arg3);
}
|
OnItemLongClickListener
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public interface OnItemLongClickListener {
public boolean onItemLongClick(AdapterView<?> arg0, View arg1,int arg2, long arg3);
}
|
以上为java代码
所需要的布局文件 只要一个放入CustomListView 的xml
和一个adapter的xml；可以自己去写。
在MainActivity中实现方法即可
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public class AutoActivity extends Activity{
private String TAG = AutoActivity.class.getSimpleName();
private CustomListView lv;
private List<String> list = null;
private MainSexangleAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.auto);
CustomListView lv = (CustomListView) findViewById(R.id.sexangleView);
setData();
ShowSexangleListView();
}
private void ShowSexangleListView(){
adapter = new MainSexangleAdapter(this, list);
lv.setDividerHeight(10);
lv.setDividerWidth(10);
lv.setAdapter(adapter);
lv.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
Toast.makeText(AutoActivity.this, "点击了 : "+arg2, 300).show();
}
});
}
private void setData(){
list = new ArrayList<String>();
list.add("Powerball");
list.add("Lil Kim Pregnant");
list.add("Nicki Minaj");
list.add("MTA");
list.add("House of Cards");
list.add("Valentine's Day");
}
}
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以上即能实现 所需要的自动换行效果
注意 ：如果布局文件 对这个自定义布局做了padding或者marging的话 CustomListView 当中的 argRight需要相应的减去你得设置。不然会有偏差。自己debug可以测试出来的！
Pass：以上查阅了很多网上资料，可是效果都不是很理想，后面联系到http://blog.csdn.net/alovebtoc/article/details/17244111博客的博主，在他的帮助下实现了以上效果，再次非常感谢对方