Android 频道管理仿今日头条

导入依赖

allprojects {
repositories {
jcenter()
//下面这一行就是
maven { url "https://jitpack.io" }
}
}

compile 'com.github.yekh:draggrid:v1.0.1'

布局写一个按钮创造点击事件就可以，下面是代码 

public class MainActivity
extends AppCompatActivity {

private List<ChannelBean> list = new ArrayList<>();
private String jsonBeans;
private SharedPreferences preferences;
private Button pindao;
private Button tab;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//初始化控件
pindao = (Button) findViewById(R.id.pindao);
tab = (Button) findViewById(R.id.btn_tab);
//初始化sharedpreference
preferences = getSharedPreferences("channel", MODE_PRIVATE);
jsonBeans = preferences.getString("beans", null);

//创建监听事件进入频道管理
pindao.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (jsonBeans == null) {
//添加频道数据
initList();
ChannelActivity.startChannelActivity(MainActivity.this, list);
} else {
ChannelActivity.startChannelActivity(MainActivity.this, jsonBeans);
}
}
});

}

private void initList() {
list.add(new ChannelBean("热点", true));
list.add(new ChannelBea
aa15
n("视频", true));
list.add(new ChannelBean("社会", false));
list.add(new ChannelBean("图片", false));
list.add(new ChannelBean("军事", false));
list.add(new ChannelBean("体育", false));
list.add(new ChannelBean("汽车", false));
list.add(new ChannelBean("国境", false));
list.add(new ChannelBean("娱乐", false));
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == ChannelActivity.REQUEST_CODE && resultCode == ChannelActivity.RESULT_CODE) {
jsonBeans = data.getStringExtra(ChannelActivity.RESULT_JSON_KEY);

}
}

@Override
public void onBackPressed() {
super.onBackPressed();
SharedPreferences.Editor editor = preferences.edit();
editor.putString("beans", jsonBeans);
editor.commit();
}
}