如何在android中设置ListView选定项alternet文本颜色
我有一个带有imageview和textview的自定义列表视图。我想当用户选择一个项目时,文本视图的颜色应该改变,所有其他文本视图应该保持默认 这是我的XML ListView.xml如何在android中设置ListView选定项alternet文本颜色,android,android-listview,Android,Android Listview,我有一个带有imageview和textview的自定义列表视图。我想当用户选择一个项目时,文本视图的颜色应该改变,所有其他文本视图应该保持默认 这是我的XML ListView.xml ListViewItems.xml 为listView实现setOnItemClickListener listView.setOnItemClickListener(new OnItemClickListener() { @Override public void onI
ListViewItems.xml
为listView实现
setOnItemClickListener
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int position,
long arg3) {
RelativeLayout relativeLayout = (RelativeLayout) view.getParent();
TextView textView = (TextView) relativeLayout.getChildAt(0);
ImageView imaegView = (ImageView) relativeLayout.getChildAt(1);
textView.setTextColor(Color.RED);
// Perform whatever action for your textView and imageView
}
});
listView.setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView AdapterView、View视图、int位置、,
长arg3){
RelativeLayout RelativeLayout=(RelativeLayout)视图。getParent();
TextView TextView=(TextView)relativeLayout.getChildAt(0);
ImageView ImageView=(ImageView)relativeLayout.getChildAt(1);
textView.setTextColor(Color.RED);
//对textView和imageView执行任何操作
}
});
在drawable中创建以下按钮\u text.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#ffff0000"/> <!-- pressed -->
<item android:state_focused="true"
android:color="#ff0000ff"/> <!-- focused -->
<item android:color="#ff000000"/> <!-- default -->
</selector>
将文本视图的textColor更改为:
<TextView
android:id="@+id/txt_bell_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/rihanna_love_the_way_lie"
android:textColor="@color/button_text" //point to that xml
android:textSize="15sp"
android:textStyle="bold"
android:typeface="sans" />
您可以阅读有关颜色状态列表的内容,您必须为特定的ImageView设置OnClickListener,然后在Adapter类中单击ImageView更改TextView的颜色。
或者
mList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
TextView tv= view.findViewById(resID);
tv.setTextColor(color)
}
});
mList.setOnItemClickListener(新的OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父项、视图、整数位置、长id){
TextView tv=view.findviewbyd(resID);
tv.setTextColor(彩色)
}
});
正如其他人所说,只需在您的onItemClick方法中更改颜色即可。此外:
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
selectItem(position);
setItemNormal();
View rowView = view;
setItemSelected(rowView);
}
public void setItemSelected(View view){
View rowView = view;
TextView tv = (TextView)rowView.findViewById(android.R.id.text1);
tv.setTextColor(Color.BLUE);
}
public void setItemNormal()
{
for (int i=0; i< mDrawerList.getChildCount(); i++)
{
View v = mDrawerList.getChildAt(i);
//TextView txtview = ((TextView) v.findViewById(R.id.menurow_title));
TextView txtview = ((TextView)v.findViewById(android.R.id.text1));
txtview.setTextColor(Color.BLACK);
}
}
@覆盖
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
选择项目(位置);
setItemNormal();
视图行视图=视图;
setItemSelected(行视图);
}
已选择公共void setItemSelected(视图){
视图行视图=视图;
TextView tv=(TextView)rowView.findViewById(android.R.id.text1);
tv.setTextColor(Color.BLUE);
}
公共void setItemNormal()
{
for(int i=0;i
通过这样做,我们将所有项目设置为正常,然后再按每个项目。在多次尝试在导航视图中设置颜色后,我找到了在listview中设置文本颜色的最简单方法,也许这会对某些人有所帮助 res/color/listview\u selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- This is used when the navigation item is selected -->
<item android:state_enabled="true"
android:state_activated="true" android:color="@color/colorAccent" />
<!-- This is the default text color -->
<item
android:color="@android:color/black" />
</selector>
并将文本视图设置为android:textColor:
<TextView
android:id="@+id/tvItem"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/activity_vertical_extra_margin"
android:textColor="@color/listview_selector"
android:textSize="@dimen/text_size_normal"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
tools:text="Row item text" />
问题出在正确的状态下,在导航视图中使用android:state_activated,但如何将其他项更改为默认颜色以下代码对我有效:
文件需要为res/color,而不是res/drawable每次点击时都必须迭代所有项,这是一种不好的做法。只需使用内置的功能。
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- This is used when the navigation item is selected -->
<item android:state_enabled="true"
android:state_activated="true" android:color="@color/colorAccent" />
<!-- This is the default text color -->
<item
android:color="@android:color/black" />
</selector>
<TextView
android:id="@+id/tvItem"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="@dimen/activity_vertical_extra_margin"
android:textColor="@color/listview_selector"
android:textSize="@dimen/text_size_normal"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintEnd_toEndOf="parent"
tools:text="Row item text" />