android中实现图片的上下移动

最新推荐文章于 2021-12-20 11:34:10 发布

原创最新推荐文章于 2021-12-20 11:34:10 发布 · 1.5k 阅读

0 ·

CC 4.0 BY-SA版权

android 专栏收录该内容

3 篇文章

订阅专栏

本文介绍了如何在Android应用中实现在屏幕上移动图片的功能，详细讲解了相关代码实现和步骤，帮助开发者理解移动图片的机制。

package com.example.healthd;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.graphics.Matrix;
import android.graphics.PointF;
import android.util.FloatMath;
import android.view.Menu;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnTouchListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;

public class Anmocheck extends Activity {
public String DBNAME="database_dignoise.db";
public String TABLENAME3="ZHENGZHUANGTZ";
public String TABLENAME1="binganxxid";
public String TABLENAME2="ZHENCI";
public String TABLENAME4="ZHONGYAOZL";
public String TABLENAME5="ANMOZL";
public String TABLENAME6="ANMOXW";
public String et;

public float mx;
public float my;


private LinearLayout mylayout = null;
private SQLiteDatabase database ;
private DBHelper dbHelper;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_anmocheck);

this.mylayout=(LinearLayout) super.findViewById(R.id.mylayout);
final ImageView switcherView1 = (ImageView) this.findViewById(R.id.mian);
switcherView1.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View arg0, MotionEvent event) {
float curX, curY;
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mx = event.getX();
my = event.getY();
break;
case MotionEvent.ACTION_MOVE:
curX = event.getX();
curY = event.getY();
switcherView1.scrollBy((int) (mx - curX), (int) (my - curY));
mx = curX;
my = curY;
break;
case MotionEvent.ACTION_UP:
curX = event.getX();
curY = event.getY();
switcherView1.scrollBy((int) (mx - curX), (int) (my - curY));
break;
}
return true;
}

});

}