android 快速实现3D标签云效果

android 快速实现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);
    }
}