java - 我想滚动相对布局也想拖动相对布局中的 ImageView 但按钮不会在 ScrollView 中拖动

Question

这是我的xml布局在这里

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

        <RelativeLayout
            android:id="@+id/vg"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="@drawable/background"
            android:orientation="vertical" >

            <ImageView
                android:id="@+id/img1"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_alignParentTop="true"
                android:layout_marginLeft="16dp"
                android:src="@drawable/button" />

        </RelativeLayout>

        </ScrollView>

上面是我的带滚动条的Xml布局当我删除此滚动条然后 imageview 移动
MainActivity.Java

package com.example.wordcombat1;


import android.net.wifi.WifiConfiguration.Status;
import android.os.Bundle;
import android.app.Activity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.ScrollView;

public class MainActivity extends Activity {

    private View selected_item = null;
    private int offset_x = 0;
    private int offset_y = 0;
    int status = 0;
    int windowwidth,windowheight;
    ImageView tv1;
    RelativeLayout.LayoutParams layoutParams1;


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        final ViewGroup vg = (ViewGroup) findViewById(R.id.vg);
        windowwidth = getWindowManager().getDefaultDisplay().getWidth();
        windowheight = getWindowManager().getDefaultDisplay().getHeight();


        tv1 = (ImageView)findViewById(R.id.img1);
        tv1.setOnTouchListener(new View.OnTouchListener() {         

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            layoutParams1 = (RelativeLayout.LayoutParams) tv1.getLayoutParams();
            switch(event.getActionMasked())
            {
                case MotionEvent.ACTION_DOWN:
                    break;
                case MotionEvent.ACTION_MOVE:
                    int x_cord = (int) event.getRawX();
                    int y_cord = (int) event.getRawY();
                    if (x_cord > windowwidth) {
                        x_cord = windowwidth;
                    }
                    if (y_cord > windowheight) {
                        y_cord = windowheight;
                    }
                    layoutParams1.leftMargin = x_cord - 25;
                    layoutParams1.topMargin = y_cord - 75;
                    tv1.setLayoutParams(layoutParams1);
                    break;
                default:
                    break;
            }
            return true;
        }
        });
    }

}

任何人都可以帮助我如何移动这两个东西。相对布局也可以滚动， ImageView 也可以正确拖动。没有滚动条的imageview移动的很好

Answer 1

使用 GridView 而不是 ScrollView 我认为您的问题已解决