ListView的Item選中改變TextView字體顏色

字體顏色只是在按下那一瞬間改變，鬆手後馬上恢復

1.在res/color文件下建立item_text_selector.xml文件

<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:color="@color/colorAccent" android:state_pressed="true"></item>
<item android:color="@color/colorPrimaryDark" android:state_pressed="false"></item>
</selector>

2.在TextView中引用便可

android:textColor="@drawable/item_text_selector"

 

字體顏色按下後就一直爲改變的顏色，鬆手後不會恢復，直到下一個Item選中後才恢復

處理思想：在適配器裏寫好字體變化的相關邏輯，而後在外部事件監聽中改變某個值，通知字體改變。

1.將item_text_selector.xml中的state_pressed改成state_selected

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:color="@color/colorleft" android:state_selected="true"></item>
    <item android:color="@color/colorTextt" android:state_selected="false"></item>
</selector>

2.在TextView中引用

3.而後在自定義的適配器代碼中

//當前Item被點擊的位置
private int currentItem;
public void setCurrentItem(int currentItem) {
    this.currentItem = currentItem;
}

而後在getView()方法中

//設置文本內容
viewHolder.videotwo_list_time.setText("課程時長："+i1+"分鐘");

if (currentItem == i) {
    //若是被點擊，設置當前TextView被選中
    viewHolder.videotwo_list_title.setSelected(true);
    viewHolder.videotwo_list_time.setSelected(true);
} else {
    //若是沒有被點擊，設置當前TextView未被選中
    viewHolder.videotwo_list_title.setSelected(false);
    viewHolder.videotwo_list_time.setSelected(false);
}

4.最後在Activity中編寫ListView的Item點擊事件

mVideotwoLisview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        //改變選中狀態
        adpater.setCurrentItem(i);
        //通知ListView改變狀態
        adpater.notifyDataSetChanged();
    }
});

 

改變背景顏色 也是相似

if (currentItem == i) {
            //若是被點擊，設置當前TextView被選中
            viewHolder.videotwo_list_title.setSelected(true);
            viewHolder.videotwo_list_time.setSelected(true);
            viewHolder.videotwo_carryout.setSelected(true);

//            viewHolder.videotwo_listview.setBackground(R.drawable.baidihongbian);
            viewHolder.videotwo_listview.setBackgroundResource(R.drawable.baidihongbian);
        } else {
            //若是沒有被點擊，設置當前TextView未被選中
            viewHolder.videotwo_list_title.setSelected(false);
            viewHolder.videotwo_list_time.setSelected(false);
            viewHolder.videotwo_carryout.setSelected(false);

//            viewHolder.videotwo_listview.setBackgroundColor();
            viewHolder.videotwo_listview.setBackgroundResource(R.color.gray_f4);
        }