how can I keep image on same position after dragging?
This is the MainActivity.java
I have three button in main_activity.xml Add table and add chair button.
Each button call specific method eg. addImage(R.drawable.table2);
In that method it's create image view and add that image view in arraylist of imageview type.
On that imageview which is in relative layout I have added code on onclick method for moving that table and chair image but My concern when I am adding new image from button click all that previews imageview parameter will be lost.I want to keep every image view on same position after draging whether I click add new table or add new chair
https://github.com/Imshyamal/RestoTableBook
package com.example.andiroot.restotablebook;
import android.content.Intent;
import android.os.Build;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Display;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.Toast;
import java.util.ArrayList;
import java.util.Random;
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
private ImageView img;
private String msg = "resto_chairtab";
private Random rand = new Random();
RelativeLayout.LayoutParams layoutParams;
String DEBUG_TAG;
RelativeLayout rel;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setListeners();
rel = (RelativeLayout)findViewById(R.id.second);
}
private void setListeners() {
findViewById(R.id.btnMainScreen).setOnClickListener(this);
findViewById(R.id.btnAddTable).setOnClickListener(this);
findViewById(R.id.btnChair).setOnClickListener(this);
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btnMainScreen:
// startActivity(new Intent(getApplicationContext(),TableManager.class));
Globals.tablesAndChairs.clear();
clarall();
Toast.makeText(this, "Hall Cleared", Toast.LENGTH_SHORT).show();
break;
case R.id.btnAddTable:
addImage(R.drawable.table2);
Toast.makeText(this, R.string.table_added, Toast.LENGTH_SHORT).show();
break;
case R.id.btnChair:
addImage2(R.drawable.chair2);
Toast.makeText(this, R.string.child_added, Toast.LENGTH_SHORT).show();
break;
}
final int width,height;
if(Build.VERSION.SDK_INT >= 13){
android.graphics.Point p = new android.graphics.Point();
this.getWindowManager().getDefaultDisplay().getSize(p);
width = p.x;
height = p.y;
}
else{
Display display = getWindowManager().getDefaultDisplay();
width = display.getWidth();
height = display.getHeight();
}
rel.setBackgroundResource(R.drawable.shape);
for(final ImageView imageView : Globals.tablesAndChairs){
layoutParams =(RelativeLayout.LayoutParams)imageView.getLayoutParams();
// To do convert oixels to dp
layoutParams.leftMargin = 20;
layoutParams.topMargin = 20;
imageView.setLayoutParams(layoutParams);
if(imageView.getParent() != null) ((ViewGroup)imageView.getParent()).removeView(imageView);
rel.addView(imageView);
imageView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
int index = Integer.valueOf(v.getTag().toString());
layoutParams = (RelativeLayout.LayoutParams) v.getLayoutParams();
switch(event.getActionMasked())
{
case MotionEvent.ACTION_DOWN:
Log.d(DEBUG_TAG,"Action was DOWN");
break;
case MotionEvent.ACTION_MOVE:
//Move object to another place
Log.d(DEBUG_TAG,"Action was MOVE");
int x_cord = (int) event.getRawX();
int y_cord = (int) event.getRawY();
if (x_cord > width) {
x_cord = width;
}
if (y_cord > height) {
y_cord = height;
}
layoutParams.leftMargin = x_cord - 50;
layoutParams.topMargin = y_cord - 50;
imageView.setLayoutParams(layoutParams);
break;
case (MotionEvent.ACTION_UP) :
Log.d(DEBUG_TAG,"Action was UP");
break;
case (MotionEvent.ACTION_CANCEL) :
Log.d(DEBUG_TAG,"Action was CANCEL");
return true;
case (MotionEvent.ACTION_OUTSIDE) :
Log.d(DEBUG_TAG,"Movement occurred outside bounds " +
"of current screen element");
return true;
default:
break;
}
return true;
}
});
}
}
private void clarall() {
rel.removeAllViews();
}
private void addImage(int image){
ImageView img = new ImageView(this);
img.setImageResource(image);
img.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT));
img.setAdjustViewBounds(true);
img.setScaleType(ImageView.ScaleType.FIT_XY);
img.setMaxHeight(300);
img.setMaxWidth(300);
img.setMinimumHeight(300);
img.setMinimumWidth(300);
img.setTag(new Random().nextInt());
Globals.tablesAndChairs.add(img);
}
private void addImage2(int image){
ImageView img = new ImageView(this);
img.setImageResource(image);
img.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT));
img.setAdjustViewBounds(true);
img.setScaleType(ImageView.ScaleType.FIT_XY);
img.setMaxHeight(100);
img.setMaxWidth(100);
img.setMinimumHeight(100);
img.setMinimumWidth(100);
img.setTag(new Random().nextInt());
Globals.tablesAndChairs.add(img);
}
}
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