Android实现3D标签云效果

最近业务需求，要求实现一个3D星球环绕效果，经过百般查找，终于找到了这个功能。

来先看看效果图：

首先还是添加第三方依赖库：

compile 'com.moxun:tagcloudlib:1.1.0' 

布局：

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:app="http://schemas.android.com/apk/res-auto"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 tools:context="com.example.administrator.my3d_demo.MainActivity"> 

 <com.moxun.tagcloudlib.view.TagCloudView
  android:id="@+id/tag_cloud"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:layout_margin="10dp"
  app:autoScrollMode="uniform"
  app:darkColor="#ff00ff00"
  app:lightColor="#ffff0000"
  app:radiusPercent="0.5"
  app:scrollSpeed="3" /> 

</android.support.constraint.ConstraintLayout> 

MainActivity代码：

package com.example.administrator.my3d_demo; 

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle; 

import com.moxun.tagcloudlib.view.TagCloudView; 

public class MainActivity extends AppCompatActivity { 

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main); 

  TagCloudView tagCloudView = (TagCloudView) findViewById(R.id.tag_cloud);
  tagCloudView.setBackgroundColor(Color.LTGRAY); 

  TextTagsAdapter tagsAdapter = new TextTagsAdapter(new String[20]);
  tagCloudView.setAdapter(tagsAdapter);
 }
} 

一个适配器代码：

package com.example.administrator.my3d_demo; 

import android.content.Context;
import android.support.annotation.NonNull;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView; 

import com.moxun.tagcloudlib.view.TagsAdapter; 

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random; 

public class TextTagsAdapter extends TagsAdapter { 

 private List<String> dataSet = new ArrayList<>(); 

 public TextTagsAdapter(@NonNull String... data) {
  dataSet.clear();
  Collections.addAll(dataSet, data);
 } 

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

 @Override
 public View getView(final Context context, final int position, ViewGroup parent) {
  String[] name = {"1", "2", "3", "4", "5", "6", "7", "8", "9"};
  /*int[] name={R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,
    R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher,
    R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher};*/
  Random rand = new Random();
  int randNum = rand.nextInt(9); 

  TextView tv = new TextView(context);
  ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams(100, 100);
  tv.setLayoutParams(lp);
  tv.setText("No." + name[randNum]);
  tv.setGravity(Gravity.CENTER);
  tv.setOnClickListener(new View.OnClickListener() {
   @Override
   public void onClick(View v) {
    Log.e("Click", "Tag " + position + " clicked.");
   }
  });
  return tv;
 } 

 @Override
 public Object getItem(int position) {
  return dataSet.get(position);
 } 

 @Override
 public int getPopularity(int position) {
  return position % 7;
 } 

 @Override
 public void onThemeColorChanged(View view, int themeColor) {
  ((TextView) view).setTextColor(themeColor);
 }
} 

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