這是我的第一篇博文,如有什麼不妥的地方請大家多多包涵,好了,進入今天的主題,前段時間有個朋友問了我一個效果,該效果的具體實現是點選Listview,然後Listview中的item項的背景顏色和item項中字型的顏色的變化,即點選item改變他們的顏色並記錄下來.好了,表達能力可能需要提高現在我先給大家截一個最終效果圖:

效果圖如上.
具體程式碼如下:

<span style="font-size:24px;">package leoli.com.focuslistview;

import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
private ListView mListView;
    private List<String> list=new ArrayList<String>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mListView= (ListView) this.findViewById(R.id.listview);
        for (int i=0;i<10;i++){
            list.add("你好"+i);
        }
        final MyAdapter adapter=new MyAdapter();
        mListView.setAdapter(adapter);


        mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
               adapter.setCurrentItem(i);
                adapter.setClick(true);
              adapter.notifyDataSetChanged();
            }
        });
    }

    class MyAdapter extends BaseAdapter{
        private int mCurrentItem=0;
        private boolean isClick=false;

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

        @Override
        public Object getItem(int i) {
            return list.get(i);
        }

        @Override
        public long getItemId(int i) {
            return i;
        }

        @Override
        public View getView(int i, View view, ViewGroup viewGroup) {
            if (view==null){
                view= LayoutInflater.from(MainActivity.this).inflate(R.layout.listview_item,null);
            }
            
          TextView textView= (TextView) view.findViewById(R.id.test);
            LinearLayout parent= (LinearLayout) view.findViewById(R.id.ll_parent);

            textView.setText(list.get(i));

          if (mCurrentItem==i&&isClick){
               parent.setBackgroundColor(Color.parseColor("#3F51B5"));
                textView.setTextColor(Color.parseColor("#ff6600"));
            }else{
                parent.setBackgroundColor(Color.parseColor("#ffffff"));
                textView.setTextColor(Color.parseColor("#000000"));
            }

            return view;
        }



      public void setCurrentItem(int currentItem){
            this.mCurrentItem=currentItem;
        }

        public void setClick(boolean click){
            this.isClick=click;
        }
    }
}