Android:当EditText是子级时,如何使布局可单击 [英] Android: How to make Layout clickable when EditText is a child
问题描述
我有一个相对布局,里面有一个EditText和一个ImageView.在某些情况下,我想使整个布局可点击,而不是使其任何子代变为可点击.
I have a Relative Layout with an EditText and an ImageView inside it. Under certain circumstances, I would like to make the whole layout clickable and not any of its children.
我在布局上添加了OnClickListener.我和孩子们尝试了以下方法:1. setEnabled(false)2. setClickable(false)
I added an OnClickListener on the layout. And I tried the following with the children: 1. setEnabled(false) 2. setClickable(false)
这适用于ImageView,但是即使进行了上述更改,当我单击EditText附近的区域时,键盘也会出现,并且可以在编辑文本中看到光标.取而代之的是,我希望所有单击/触摸事件都进入布局.
This works for the ImageView but even after the above changes, when I click on the area near the EditText, the keyboard comes up and I can see the cursor in the edit text. Instead of that, I am hoping that all click/touch events go to the layout.
有人可以帮忙吗?谢谢
推荐答案
只需创建一个CustomLayout类并覆盖 onInterceptTouchEvent
方法.如果该方法返回 true
,则布局的子级将不会收到touch事件.您可以创建一个成员变量和一个公共设置器来更改返回值.
Yon create a CustomLayout class and override the onInterceptTouchEvent
method. If that method returns true
, the layout's childrens will not receive the touch event. You can create a member variable and a public setter to change the returning value.
CustomLayout类
public class CustomLayout extends LinearLayout {
//If set to false, the children are clickable. If set to true, they are not.
private boolean mDisableChildrenTouchEvents;
public CustomLayout(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
mDisableChildrenTouchEvents = false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return mDisableChildrenTouchEvents;
}
public void setDisableChildrenTouchEvents(boolean flag) {
mDisableChildrenTouchEvents = flag;
}
}
MainActivity
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
CustomLayout layout = findViewById(R.id.mylayout);
//Disable touch events in Children
layout.setDisableChildrenTouchEvents(true);
layout.setOnClickListener(v -> System.out.println("Layout clicked"));
}
}
XML布局
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<com.example.dglozano.myapplication.CustomLayout
android:id="@+id/mylayout"
android:layout_width="0dp"
android:layout_height="0dp"
android:background="@drawable/outline"
android:clipChildren="true"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent">
<EditText
android:id="@+id/editText2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:hint="Enter email"
android:inputType="textEmailAddress"
android:layout_gravity="center"/>
</com.example.dglozano.myapplication.CustomLayout>
</android.support.constraint.ConstraintLayout>
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