頻道管理（簡單使用但返回按鈕不能使用）轉自他人
阿新 • • 發佈：2018-11-28
匯入依賴
在專案的build.gradle匯入
allprojects {
repositories {
jcenter()
//下面這一行就是
maven { url "https://jitpack.io" }
}
}
在module裡的build.gradle匯入
implementation'com.github.yekh:draggrid:v1.0.1'
佈局寫一個按鈕創造點選事件就可以，下面是程式碼
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); //初始化控制元件 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); //建立監聽事件進入頻道管理 pindao.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (jsonBeans == null) { //新增頻道資料 initList(); ChannelActivity.startChannelActivity(MainActivity.this, list); } else { ChannelActivity.startChannelActivity(MainActivity.this, jsonBeans); } } }); } private void initList() { list.add(new ChannelBean("熱點", true)); list.add(new ChannelBean("視訊", true)); list.add(new ChannelBean("社會", false)); list.add(new ChannelBean("圖片", false)); list.add(new ChannelBean("軍事", false)); list.add(new ChannelBean("體育", false)); list.add(new ChannelBean("汽車", false)); list.add(new ChannelBean("國境", false)); list.add(new ChannelBean("娛樂", 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(); preferences.edit() .putString( "beans",string ) .commit(); } }
作者：老傘czx
來源：CSDN
原文：https://blog.csdn.net/PowerSen/article/details/78036857