Android 拖拽控制元件交換位置
阿新 • • 發佈：2019-01-26
package com.example.administrator.jiemiantest;
import android.app.Activity;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.TranslateAnimation;
import android.widget.ImageView;
public class MainActivity extends Activity implements View.OnTouchListener{
int screenWidth;
int screenHeight;
int lastX;
int lastY;
ImageView sunwukong;
ImageView prettyBoy;
boolean sunwukong_resetLeftFlag = false;
boolean sunwukong_resetRightFlag = false;
boolean prettyBoy_resetLeftflag = false;
boolean prettyBoy_resetRightflag = false;
int rightMove_flag ;
int leftMove_flag;
int dx;
int dy;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
DisplayMetrics dm = getResources().getDisplayMetrics();
screenWidth = dm.widthPixels;
screenHeight = dm.heightPixels - 50;
sunwukong = findViewById(R.id.sunwukong);
sunwukong.setOnTouchListener(this);
prettyBoy=findViewById(R.id.prettyBoy);
prettyBoy.setOnTouchListener(this);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
int action=event.getAction();
Log.i("@@@@@@", "Touch:"+action);
//Toast.makeText(DraftTest.this, "λ�ã�"+x+","+y, Toast.LENGTH_SHORT).show();
switch(action){
case MotionEvent.ACTION_DOWN:
lastX = (int) event.getRawX();
lastY = (int) event.getRawY();
break;
/**
* layout(l,t,r,b)
* l Left position, relative to parent
t Top position, relative to parent
r Right position, relative to parent
b Bottom position, relative to parent
* */
case MotionEvent.ACTION_MOVE:
dx =(int)event.getRawX() - lastX;
dy =(int)event.getRawY() - lastY;
int left = v.getLeft() + dx;
int top = v.getTop() + dy;
int right = v.getRight() + dx;
int bottom = v.getBottom() + dy;
if(left < 0){
left = 0;
right = left + v.getWidth();
}
if(right > screenWidth){
right = screenWidth;
left = right - v.getWidth();
}
if(top < 0){
top = 0;
bottom = top + v.getHeight();
}
if(bottom > screenHeight){
bottom = screenHeight;
top = bottom - v.getHeight();
}
v.layout(left, top, right, bottom);
lastX = (int) event.getRawX();
lastY = (int) event.getRawY();
switch (v.getId()){
case R.id.sunwukong:
if(dx > 0){
if(sunwukong.getLeft() >=150 ){
if(300 == prettyBoy.getLeft()) {
prettyBoy.layout(0, 0, 300, 300);
Animation translateAnimation = new TranslateAnimation(300, 0, 0, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
prettyBoy.startAnimation(translateAnimation);
rightMove_flag = 1;
}
}
}else{
if(sunwukong.getLeft()<=150){
if(0 == prettyBoy.getLeft()) {
prettyBoy.layout(300, 0, 600, 300);
Animation translateAnimation = new TranslateAnimation(-300, 0, 0, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
prettyBoy.startAnimation(translateAnimation);
leftMove_flag = 1;
}
}
}
break;
case R.id.prettyBoy:
if(dx > 0){
if(prettyBoy.getLeft() >= 150){
if(300 ==sunwukong.getLeft()) {
sunwukong.layout(0, 0, 300, 300);
Animation translateAnimation = new TranslateAnimation(300, 0, 0, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
sunwukong.startAnimation(translateAnimation);
rightMove_flag = 1;
}
}
}else{
if(prettyBoy.getLeft() <= 150){
if(0 == sunwukong.getLeft()) {
sunwukong.layout(300, 0, 600, 300);
Animation translateAnimation = new TranslateAnimation(-300, 0, 0, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
sunwukong.startAnimation(translateAnimation);
leftMove_flag = 1;
}
}
}
}
break;
case MotionEvent.ACTION_UP:
switch (v.getId()){
case R.id.sunwukong:
if(dx > 0){
if(sunwukong.getLeft() <=150 ){
sunwukong_resetLeftFlag =true;
}
if(sunwukong.getLeft()>=300){
sunwukong_resetRightFlag = true;
}
}else{
if(sunwukong.getLeft()>=150){
sunwukong_resetRightFlag = true;
}
}
if(1 == rightMove_flag){
rightMove_flag = 0;
int x1 = sunwukong.getLeft();
int x2 = sunwukong.getTop();
sunwukong.layout(300,0,600,300);
Animation translateAnimation = new TranslateAnimation(x1-300, 0, x2, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
sunwukong.startAnimation(translateAnimation);
break;
}
if(sunwukong_resetLeftFlag){
sunwukong_resetLeftFlag=false;
int x1 = sunwukong.getLeft();
int high = sunwukong.getTop();
sunwukong.layout(0,0,300,300);
Animation translateAnimation = new TranslateAnimation(x1, 0, high, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
sunwukong.startAnimation(translateAnimation);
break;
}
if(1 ==leftMove_flag){
leftMove_flag =0;
int x1 = sunwukong.getLeft();
int x2 = sunwukong.getTop();
sunwukong.layout(0,0,300,300);
Animation translateAnimation = new TranslateAnimation(x1, 0, x2, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
sunwukong.startAnimation(translateAnimation);
break;
}
if(sunwukong_resetRightFlag){
sunwukong_resetRightFlag = false;
int x1 = sunwukong.getLeft();
int x2 = sunwukong.getTop();
sunwukong.layout(300,0,600,300);
Animation translateAnimation = new TranslateAnimation(x1-300, 0, x2, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
sunwukong.startAnimation(translateAnimation);
break;
}
break;
case R.id.prettyBoy:
if(dx > 0){
if(prettyBoy.getLeft() <= 150){
prettyBoy_resetLeftflag =true;
}
if(prettyBoy.getLeft() >= 300){
prettyBoy_resetRightflag = true;
}
}else{
if(prettyBoy.getLeft() >= 150){
prettyBoy_resetRightflag = true;
}
}
if(1 == rightMove_flag){
rightMove_flag = 0;
int x1 = prettyBoy.getLeft();
int x2 = prettyBoy.getTop();
prettyBoy.layout(300,0,600,300);
Animation translateAnimation = new TranslateAnimation(x1-300, 0, x2, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
prettyBoy.startAnimation(translateAnimation);
break;
}
if(prettyBoy_resetLeftflag){
prettyBoy_resetLeftflag=false;
int x1 = prettyBoy.getLeft();
int high = prettyBoy.getTop();
prettyBoy.layout(0,0,300,300);
Animation translateAnimation = new TranslateAnimation(x1, 0, high, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
prettyBoy.startAnimation(translateAnimation);
break;
}
if(1 ==leftMove_flag){
leftMove_flag =0;
int x1 = prettyBoy.getLeft();
int x2 = prettyBoy.getTop();
prettyBoy.layout(0,0,300,300);
Animation translateAnimation = new TranslateAnimation(x1, 0, x2, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
prettyBoy.startAnimation(translateAnimation);
break;
}
if(prettyBoy_resetRightflag){
prettyBoy_resetRightflag = false;
int x1 = prettyBoy.getLeft();
int x2 = prettyBoy.getTop();
prettyBoy.layout(300,0,600,300);
Animation translateAnimation = new TranslateAnimation(x1-300, 0, x2, 0);
translateAnimation.setFillAfter(true);
translateAnimation.setDuration(600);
prettyBoy.startAnimation(translateAnimation);
break;
}
break;
}
break;
}
return false;
}
}