所以我有自定义列表项,带有ListView按钮.按下时,按钮显示交替可绘制以向用户显示反馈.但是,当我点击该行时,每个按钮都显示按下状态,就像我点击它们一样.
如何让按钮显示其原始状态而不是state_pressed?
布局/列表项目:
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="horizontal"
android:paddingBottom="10dp"
android:paddingTop="10dp"
android:descendantFocusability="blocksDescendants" >
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:orientation="vertical"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:gravity="center_vertical|left" >
<TextView
android:id="@+id/txtMain"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:textAppearance="?android:attr/textAppearanceLarge"
style="@style/PrimaryText" />
<TextView
android:id="@+id/txtSub"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:textAppearance="?android:attr/textAppearanceLarge"
style="@style/SecondaryText" />
</LinearLayout>
<ImageButton
android:id="@+id/imbResponse"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@null"
android:focusable="false"
android:duplicateParentState="false"
android:src="@drawable/response_btn"
android:contentDescription="@string/response"
android:layout_marginLeft="10dp"
android:layout_marginTop="5dp"
android:layout_marginRight="10dp"
android:layout_marginBottom="5dp" />
</LinearLayout>
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绘制/ response_btn.xml:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_focused="true" android:drawable="@drawable/res_m" />
<item android:state_pressed="true" android:drawable="@drawable/res_m" />
<item android:state_focused="false" android:state_pressed="false" android:drawable="@drawable/res_alt_m" />
</selector>
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我试图删除state_focused和state_pressed,state_focused.似乎该按钮从其父级获取state_pressed.
代码注释:1.RelativeLayout Clickable attr设置为true,其中有一个子视图,其Clickable attr设置为false.2.没有任何duplicateParentState attr,换句话说,duplicateParentState为false.3.子视图是TextView,其textColor是颜色选择器,因此它可以检查按下的状态.
行为:在level16之前,当单击RelativeLayout时,按下的状态不会传输到他的chlid视图.但是在16级或更高级别,它可以.
原因:setPressed ------> dispatchSetPressed ------>将压缩状态传递给子视图-----> childView.setPressed
15级的View.java onTouchEvent,
case MotionEvent.ACTION_DOWN:
mHasPerformedLongPress = false;
if (performButtonActionOnTouchDown(event)) {
break;
}
// Walk up the hierarchy to determine if we're inside a scrolling container.
boolean isInScrollingContainer = isInScrollingContainer();
// For views inside a scrolling container, delay the pressed feedback for
// a short period in case this is a scroll.
if (isInScrollingContainer) {
mPrivateFlags |= PREPRESSED;
if (mPendingCheckForTap == null) {
mPendingCheckForTap = new CheckForTap();
}
postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); …Run Code Online (Sandbox Code Playgroud) 这是可能的布局xml:
<RelativeLayout
android:id="@+id/seek_bar_wrapper"
android:layout_width="match_parent"
android:layout_height="200dip">
<SeekBar
android:id="@+id/seek_bar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_margin="20dip"
android:maxHeight="2dip"
android:minHeight="2dip"
android:progressDrawable="@drawable/drawable_seekbar_progress"
android:thumb="@drawable/drawable_seekbar_thumb" />
</RelativeLayout>
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我将设置OnClickListener为RelativeLayout。奇怪的是,当我触摸时RelativeLayout,SeekBar就像按动它一样,当按下状态时,它的拇指成为可绘制对象。我认为状态变得紧迫。
这是一个错误,如何解决?
我不知道如何解释这个问题,但我会试试.我有一个包含几个项目的ListView.每个项目都有一个TextView和两个ImageView.我想在单击它们时更改ImageView,并且当我长按ListView项目时,我想打开上下文菜单.
对于ImageView,一切正常.对于整个项目,我可以在长按后显示上下文菜单,但我的问题是,当我按下TextView时,ImageView也会改变.
索莫的代码片段:
ListView项目:
<TextView
android:id="@+id/title"
android:textColor="@color/black"
android:maxLines="2"
android:textSize="14dip"
/>
<ImageView
android:id="@+id/minus"
android:src="@drawable/minusbutton"
android:adjustViewBounds="true"
android:gravity="center"
/>
<ImageView
android:id="@+id/plus"
android:src="@drawable/plusbutton"
android:adjustViewBounds="true"
android:gravity="center"
/>
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可绘制以更改加号按钮的状态:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_enabled="false"
android:drawable="@drawable/button_add_normal_disabled" />
<item android:state_enabled="true"
android:state_pressed="true"
android:drawable="@drawable/button_add_pressed" />
<item android:state_enabled="true"
android:state_focused="true"
android:state_pressed="false"
android:drawable="@drawable/button_add_active" />
<item android:state_enabled="true"
android:state_focused="false"
android:state_pressed="false"
android:drawable="@drawable/button_add_normal" />
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我希望你理解我的问题.我认为一个观点的所有孩子都受到父母的一个事件的影响,但我不确定.
你有解决方案吗?提前致谢
android ×4
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