TagCloudView云标签的灵活运用

这两天做了一个项目，发现标签不能更改任意一个标签的字体的颜色，需求如同置前标签，然后就对tagcloudeview稍做修改做了这么一个demo。不为别的，只为以后自己用的时候方便拷贝。

先看效果图： 
 
这两天做了一个项目，需求如同置前标签，然后就对tagcloudeview稍做修改做了这么一个demo。不为别的，只为以后自己用的时候方便拷贝。

云标签开源地址https://github.com/kingideayou/TagCloudView 
在源码里面加了两个方法

 /**修改某些位置定点颜色**/
     public void setTagsByPosition(HashMap<Integer, Boolean> positions, List<String> tagList){
         this.tags = tagList;
         this.removeAllViews();
         if (tags != null && tags.size() > ) {
             for (int i = ; i < tags.size(); i++) {
                 TextView tagView = (TextView) mInflater.inflate(mTagResId, null);
                 if (mTagResId == DEFAULT_TAG_RESID) {
                     tagView.setBackgroundResource(mBackground);
                     tagView.setTextSize(TypedValue.COMPLEX_UNIT_SP, mTagSize);
                     if (positions.get(i)){
                         tagView.setTextColor(mSeclectTagColor);
                     }else{
                         tagView.setTextColor(mTagColor);
                     }
                 }
                 LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
                 tagView.setLayoutParams(layoutParams);
                 tagView.setText(tags.get(i));
                 tagView.setTag(TYPE_TEXT_NORMAL);
                 final int finalI = i;
                 tagView.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         if (onTagClickListener != null) {
                             onTagClickListener.onTagClick(finalI);
                         }
                     }
                 });
                 addView(tagView);
             }
         }
         postInvalidate();
     }
     /**最前面的修改颜色**/
     public void setTagsByLength(int length,List<String> tagList){
         this.tags = tagList;
         this.removeAllViews();
         if (tags != null && tags.size() > ) {

             for (int i = ; i < tags.size(); i++) {
                 TextView tagView = (TextView) mInflater.inflate(mTagResId, null);
                 if (mTagResId == DEFAULT_TAG_RESID) {
                     tagView.setBackgroundResource(mBackground);
                     tagView.setTextSize(TypedValue.COMPLEX_UNIT_SP, mTagSize);
                     if (i >= length){
                         tagView.setTextColor(mTagColor);
                     }else{
                         tagView.setTextColor(mSeclectTagColor);
                     }
                 }
                 LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
                 tagView.setLayoutParams(layoutParams);
                 tagView.setText(tags.get(i));
                 tagView.setTag(TYPE_TEXT_NORMAL);
                 final int finalI = i;
                 tagView.setOnClickListener(new OnClickListener() {
                     @Override
                     public void onClick(View v) {
                         if (onTagClickListener != null) {
                             onTagClickListener.onTagClick(finalI);
                         }
                     }
                 });
                 addView(tagView);
             }
         }
         postInvalidate();
     }

一目了然的方法，所以不多做解释 
另外加了一个选中字体颜色的全局常量，和一个int变量

 private static final int SELCECT_TEXT_COLOR = R.color.yellow_bg;//选中后的标签颜色
    private int mSeclectTagColor;

在styles.xml中给TagCloudView增加了一个选中字体颜色的attr

  <attr name="tcvSeclecTextColor" format="reference" />

剩下就是运用的地方

不多说，直接上代码

 public class MainActivity extends AppCompatActivity {
     private TagCloudView normalTagView;//标准
     private TagCloudView selectTagUseView;//置前
     private TagCloudView positionsView;//定点
     private List<String> AllTagsNormal = new ArrayList<>();//整个标签存放集合
     private List<String> AllTagsSelect = new ArrayList<>();//整个标签存放集合
     private List<String> selectTags = new ArrayList<>();//选中的标签
     private List<String> notSelectTags = new ArrayList<>();//未选中的标签

     private List<String> AllTagsPosition = new ArrayList<>();//整个标签存放集合
     private HashMap<Integer, Boolean> map = new HashMap<>();//记录选择的位置

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
         normalTagView = (TagCloudView) findViewById(R.id.normalTag);
         selectTagUseView = (TagCloudView) findViewById(R.id.selcetTagUse);
         positionsView = (TagCloudView) findViewById(R.id.positionsTag);
         setSupportActionBar(toolbar);
         for (int i = ; i < ; i++) {
             AllTagsNormal.add("普通标签" + i);
             AllTagsSelect.add("置前标签" + i);
             AllTagsPosition.add("定点标签" + i);
             map.put(i, false);
         }
         normalTagView.setOnTagClickListener(new TagCloudView.OnTagClickListener() {
             @Override
             public void onTagClick(int position) {
                 Snackbar.make(normalTagView, AllTagsNormal.get(position), Snackbar.LENGTH_LONG)
                         .setAction("Action", null).show();
             }
         });
         selectTagUseView.setOnTagClickListener(new TagCloudView.OnTagClickListener() {
             @Override
             public void onTagClick(int position) {
                 if (selectTags.contains(AllTagsSelect.get(position))) {//如果选中的里面有 就删掉 扔到未选中的里面去
                     selectTags.remove(position);
                     notSelectTags.add(AllTagsSelect.get(position));
                 } else {
                     selectTags.add(AllTagsSelect.get(position));//
                     notSelectTags.remove(position - selectTags.size() + );
                 }
                 Snackbar.make(selectTagUseView, AllTagsSelect.get(position), Snackbar.LENGTH_LONG)
                         .setAction("Action", null).show();

                 AllTagsSelect.clear();//清空，重新装数据
                 AllTagsSelect.addAll(selectTags);
                 AllTagsSelect.addAll(notSelectTags);
                 bindSelectUseView(selectTags.size());

             }
         });
         positionsView.setOnTagClickListener(new TagCloudView.OnTagClickListener() {
             @Override
             public void onTagClick(int position) {
                 bindPositionView(position);
                 Snackbar.make(positionsView, AllTagsPosition.get(position), Snackbar.LENGTH_LONG)
                         .setAction("Action", null).show();
             }
         });
         normalTagView.setTags(AllTagsNormal);

         int selectLength = ;
         bindSelectUseView(selectLength);

         //用一个hashmap存放当前位置是否需要变色
         bindPositionView();
         bindPositionView();
         bindPositionView();

     }

     /**
      * 定点标签记录和view变化
      **/
     private void bindPositionView(int position) {
         for (int i = ; i < AllTagsPosition.size(); i++) {
             if (i == position) {
                 if (map.get(i)) {
                     map.put(i, false);
                 } else {
                     map.put(i, true);
                 }
             } else {
                 if (map.get(i)) {
                     map.put(i, true);
                 } else {
                     map.put(i, false);
                 }
             }
         }
         positionsView.setTagsByPosition(map, AllTagsPosition);
         for (int i = ; i < AllTagsPosition.size(); i++) {
             if (map.get(i)) {
                 positionsView.getChildAt(i).setBackgroundResource(R.drawable.edit_style_yellow);
             }
         }
     }

     /**
      * 选中标签的运用
      **/
     private void bindSelectUseView(int selectLength) {
         selectTagUseView.setTagsByLength(selectLength, AllTagsSelect);
         selectTags.clear();
         notSelectTags.clear();
         for (int i = ; i < AllTagsSelect.size(); i++) {
             if (i < selectLength) {
                 selectTags.add(AllTagsSelect.get(i));//选中的存放入集合
                 selectTagUseView.getChildAt(i).setBackgroundResource(R.drawable.edit_style_yellow);
             } else {
                 notSelectTags.add(AllTagsSelect.get(i));//未选中的存放入集合
             }
         }
     }

     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         // Inflate the menu; this adds items to the action bar if it is present.
         getMenuInflater().inflate(R.menu.menu_main, menu);
         return true;
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         // Handle action bar item clicks here. The action bar will
         // automatically handle clicks on the Home/Up button, so long
         // as you specify a parent activity in AndroidManifest.xml.
         int id = item.getItemId();

         //noinspection SimplifiableIfStatement
         if (id == R.id.action_settings) {
             return true;
         }

         return super.onOptionsItemSelected(item);
     }
 }

项目下载地址：https://github.com/a12a15a05/TagCloudViewDemo