本文实例为大家分享了FlowLayout实现搜索清空历史记录的具体代码,供大家参考,具体内容如下
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效果图:点击搜索框将搜索的历史在流式布局中展示出来,清空历史记录就会将历史清空,每次搜索后都存入sp中,每次进入页面都先判断sp里是否有值并展示
首先需要导入一个module,下载地址
下载完这个工程后,需要将里面的flowlayout-lib导入到工程中,
导入工程的步骤:File - New - Import Module 选中这个flowlayout-lib
导入完成后,在项目的build.gradle中对导入的module进行依赖
compile project(':flowlayout-lib')
activity_main.xml
tv.xml
drawable下面创建
checked_bg.xml
<?xml version="1.0" encoding="utf-8"?>
normal_bg.xml
<?xml version="1.0" encoding="utf-8"?>
tag_bg.xml
<?xml version="1.0" encoding="utf-8"?>
text_color.xml
<?xml version="1.0" encoding="utf-8"?>
MainActivity
public class MainActivity extends AppCompatActivity { private TagFlowLayout mFlowLayout; private EditText editText; private Button button; private Liststrings; String history=""; int a=0; List historylist = new ArrayList<>(); //布局管理器 private LayoutInflater mInflater; //流式布局的子布局 private TextView tv; public Handler handler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case 1: mFlowLayout.setAdapter(new TagAdapter (strings) { @Override public View getView(FlowLayout parent, int position, String s) { tv = (TextView) mInflater.inflate(R.layout.tv, mFlowLayout, false); tv.setVisibility(View.VISIBLE); tv.setText(s); return tv; } }); break; } super.handleMessage(msg); } }; private Button clearbtn; @RequiresApi(api = Build.VERSION_CODES.M) @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mInflater = LayoutInflater.from(this); mFlowLayout = (TagFlowLayout) findViewById(R.id.id_flowlayout); editText = (EditText) findViewById(R.id.edt); button = (Button) findViewById(R.id.btn); clearbtn = findViewById(R.id.clear); final SharedPreferences preferences = getSharedPreferences("config", 0); final SharedPreferences.Editor editor = preferences.edit(); strings = new ArrayList<>(); final String string = preferences.getString("string", " "); String[] split = string.split(" "); if (split.length>0&&!string.equals(" ")){ for (int i=0;i set = new ArraySet<>(); set.add(aa); historylist.add(aa); a++; history+= aa+" "; for (int i=0;i
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持创新互联。