Android实现3D标签云简单效果

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 android:id="@+id/activity_main"
 android:layout_width="match_parent"
 android:layout_height="match_parent">

 <com.moxun.tagcloudlib.view.TagCloudView
  android:id="@+id/tcv_tags"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  app:autoScrollMode="uniform"
  app:radiusPercent="0.8" />

</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>

<!--单个标签云中的文本的视图-->
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="标签云"
 android:textColor="@color/textcolor_tags"
  />

<?xml version="1.0" encoding="utf-8"?>

<!--标签云的文本的字体的颜色选择器-->
<selector xmlns:android="http://schemas.android.com/apk/res/android">
 <item android:color="#f0f" android:state_selected="true" />
 <item android:color="#000" android:state_selected="false" />
</selector>

package com.lwz.cloud;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.moxun.tagcloudlib.view.TagsAdapter;

import java.util.List;


/**
 * 标签云页面数据的适配器
 */

public class CursorTagsAdapter extends TagsAdapter {


 private List<String> mList;

 public CursorTagsAdapter( List<String> list) {
  this.mList = list;
 }

 @Override
 public int getCount() {
  return mList.size();
 }

 @Override
 public View getView(Context context, int position, ViewGroup parent) {
  TextView tv = (TextView) View.inflate(context, R.layout.item_tag, null);
  tv.setText(getItem(position));
  return tv;
 }

 @Override
 public String getItem(int position) {
  return mList.get(position);
 }

 @Override
 public int getPopularity(int position) {
  return 1;
 }

 @Override
 public void onThemeColorChanged(View view, int themeColor) {

 }
}

package com.lwz.cloud;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import com.moxun.tagcloudlib.view.TagCloudView;

import java.util.ArrayList;
import java.util.List;

/**
 * 标签云效果界面的设计
 */
public class MainActivity extends AppCompatActivity implements TagCloudView.OnTagClickListener {
 TagCloudView tcvTags;//标签云对象
 List<String> list = new ArrayList<>();//标签云数据的集合
 List<String> listClick = new ArrayList<>();//点击过的标签云的数据的集合

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  //给集合添加数据
  for (int i = 0; i < 20; i++) {
   list.add("这是标签" + i);
  }

  tcvTags = (TagCloudView) findViewById(R.id.tcv_tags);
  //设置标签云的点击事件
  tcvTags.setOnTagClickListener(this);
  //给标签云设置适配器
  CursorTagsAdapter adapter = new CursorTagsAdapter(list);
  tcvTags.setAdapter(adapter);
 }

 /**
  * 点击标签是回调的方法
  */
 @Override
 public void onItemClick(ViewGroup parent, View view, int position) {
  view.setSelected(!view.isSelected());//设置标签的选择状态
  if (view.isSelected()) {
   //加入集合
   listClick.add(list.get(position));
  } else {
   //移除集合
   listClick.remove(list.get(position));
  }
  Toast.makeText(this, "点击过的标签：" + listClick.toString(), Toast.LENGTH_SHORT).show();
 }
}