EditText not scrollable inside ScrollView

问题:

I have a ScrollView inside which is an EditText which is set to scroll vertically. But it does not scrolls. Instead the whole layout scrolls, Whenever i try to scroll the EditText. Below is the code -

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
<LinearLayout 
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >

<TextView
    android:id="@+id/b1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_marginTop="39dp"
    android:text="Title"
    android:textColor="#3bb9ff"
    android:textSize="15sp" />

<EditText
    android:id="@+id/Text1"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:ems="10"
    android:hint="Title"
    android:singleLine="true" >

    <requestFocus />

</EditText>

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Content"
    android:layout_marginTop="50dp"
    android:textColor="#3bb9ff"
    android:textSize="15sp"
   />


<EditText
    android:id="@+id/newTodoText"
    android:layout_width="fill_parent"
    android:layout_height="match_parent" 
    android:minLines="2"
    android:maxLines="7"
     android:hint="Write something"
     android:scrollbars = "vertical" >
</EditText>
<Button
    android:id="@+id/Add"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:text="Add" />


</LinearLayout>
</ScrollView>

The EditText with id "newTodoText" is in question here.

回答1:

You have to just replace your <ScrollView ></ScrollView> with this Custom ScrollView like <com.example.VerticalScrollview > </com.example.VerticalScrollview >

package com.example;

import android.content.Context;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.widget.ScrollView;

public class VerticalScrollview extends ScrollView{

    public VerticalScrollview(Context context) {
        super(context);
    }

     public VerticalScrollview(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        public VerticalScrollview(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
        }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        final int action = ev.getAction();
        switch (action)
        {
            case MotionEvent.ACTION_DOWN:
                    Log.i("VerticalScrollview", "onInterceptTouchEvent: DOWN super false" );
                    super.onTouchEvent(ev);
                    break;

            case MotionEvent.ACTION_MOVE:
                    return false; // redirect MotionEvents to ourself

            case MotionEvent.ACTION_CANCEL:
                    Log.i("VerticalScrollview", "onInterceptTouchEvent: CANCEL super false" );
                    super.onTouchEvent(ev);
                    break;

            case MotionEvent.ACTION_UP:
                    Log.i("VerticalScrollview", "onInterceptTouchEvent: UP super false" );
                    return false;

            default: Log.i("VerticalScrollview", "onInterceptTouchEvent: " + action ); break;
        }

        return false;
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        super.onTouchEvent(ev);
        Log.i("VerticalScrollview", "onTouchEvent. action: " + ev.getAction() );
         return true;
    }
}

回答2:

EditText EtOne = (EditText) findViewById(R.id.EditText01);
EtOne.setOnTouchListener(new OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        if (v.getId() == R.id.EditText01) {
            v.getParent().requestDisallowInterceptTouchEvent(true);
            switch (event.getAction() & MotionEvent.ACTION_MASK) {
            case MotionEvent.ACTION_UP:
                v.getParent().requestDisallowInterceptTouchEvent(false);
                break;
            }
        }
        return false;
    }
});

回答3:

mEdtText1.setOnTouchListener(new View.OnTouchListener() { 
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                mScrlMain.requestDisallowInterceptTouchEvent(true);
                return false;
            }
        });

// change hear mEdtText1 with your edit text object and also change mScrlMain with your scroll view object they work definitely.

回答4:

<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content" >

This will make your entire layout scrollable.

For setting your edittext scrollable add android:scrollbars="vertical" to your edittext

In your code its already written

<EditText
    android:id="@+id/newTodoText"
    android:layout_width="fill_parent"
    android:layout_height="match_parent" 
    android:minLines="2"
    android:maxLines="7"
     android:hint="Write something"
     android:scrollbars = "vertical" >

Remove the from code.It will work fine

回答5:

you should use NestedScrollView class. This class support child scrolling inside parent scrolling. This class can be a child or a parent.

<android.support.v4.widget.NestedScrollView         
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#d6d8d9">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">
        <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:maxLines="512"
                android:text=" your content"/>
        <android.support.v4.widget.NestedScrollView
            android:layout_below="@id/ll_button"
            android:layout_width="match_parent"
            android:layout_height="300dp"
            android:background="#d6d8d9">

            <EditText
                android:layout_width="match_parent"
                android:layout_height="wrap_content" 
                android:text="your content"
                android:maxLines="512"/>    
        </android.support.v4.widget.NestedScrollView>       
    </LinearLayout>

</android.support.v4.widget.NestedScrollView> 

回答6:

noteEdit.setMovementMethod(new ScrollingMovementMethod());
    ScrollingMovementMethod.getInstance();


    noteEdit.setOnTouchListener(new View.OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {

            noteEdit.getParent().requestDisallowInterceptTouchEvent(true);

            return false;
        }


    });

回答7:

A simple way to do so is mentioned below with some description

            myEditText.setOnTouchListener(new View.OnTouchListener() {  //Register a callback to be invoked when a touch event is sent to this view.
            @Override
            public boolean onTouch(View v, MotionEvent event) {     
//Called when a touch event is dispatched to a view. This allows listeners to get a chance to respond before the target view.
                mScrollView.requestDisallowInterceptTouchEvent(true);
                return false;
            }
        });

回答8:

• You have set ScrollView as your parent most layout. That's reason your whole layout gets scrolled.
• As, far as your EditText is concerned, you have used android:scrollbars = "vertical" which means if the EditText grows a vertical srollBar will appear. You will get the scrollbar and scrolling effect only if edittext has data high enough..

Hope this helps...

回答9:

Use this Code Its Working

in Xml

android:singleLine="false"
android:overScrollMode="always"
android:scrollbarStyle="insideInset"
android:scrollbars="vertical"

in Pragraming

et_feedback.setOnTouchListener(new View.OnTouchListener() {

            public boolean onTouch(View view, MotionEvent event) {

                if (view.getId() == R.id.et_feedback) {
                    view.getParent().requestDisallowInterceptTouchEvent(true);
                    switch (event.getAction() & MotionEvent.ACTION_MASK) {
                        case MotionEvent.ACTION_UP:
                            view.getParent().requestDisallowInterceptTouchEvent(false);
                            break;
                    }
                }
                return false;
            }
        });

回答10:

You have set "Scroll View" to your parent - this means it scrolls the whole layout.

If you want to scroll a particular "Edit text" then you have to put another Scroll view to that edit text.