how to add move image on touch event android?
This class has three Buttons Add table, Add chair and reset add table will add tablein second layout add chair will add chair image in second layout.Both button works but I want to move chair and table ( imageView ) in screen.
MainActivity.java
public class MainActivity extends AppCompatActivity {
private ArrayList<String> mSelecetdItems = new ArrayList<>();
public static final String SELECETD_ITEMS = "SELECETD_ITEMS";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void addtable(View v){
this.mSelecetdItems.add("table");
showSecondActivity();
}
public void addchair(View v){
this.mSelecetdItems.add("chair");
showSecondActivity();
}
private void showSecondActivity() {
Intent i = new Intent(this,Second.class);
i.putStringArrayListExtra(SELECETD_ITEMS,this.mSelecetdItems);
startActivity(i);
}
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putStringArrayList(SELECETD_ITEMS , mSelecetdItems);
}
@Override
public void onRestoreInstanceState(Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
this.mSelecetdItems = savedInstanceState.getStringArrayList(SELECETD_ITEMS);
}
}
This class has three Buttons Add table, Add chair and reset add table will add tablein second layout add chair will add chair image in second layout. I want to move table and chair in layout image.
Second.java
public class Second extends AppCompatActivity {
ImageView iv;
ImageView iv2;
private int xDelta;
private int yDelta;
LinearLayoutCompat hall;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
Toolbar toolbar = (Toolbar) findViewById(R.id.second_toolbar);
setSupportActionBar(toolbar);
ActionBar ab = getSupportActionBar();
ab.setDisplayHomeAsUpEnabled(true);
hall = (LinearLayoutCompat) findViewById(R.id.hall_layout);
Intent i = getIntent();
ArrayList<String> selecetdItems = i.getStringArrayListExtra(MainActivity.SELECETD_ITEMS);
for (String selecetdItem : selecetdItems) {
if (selecetdItem.equals("table")) {
addImageView(R.drawable.table, hall);
} else if (selecetdItem.equals("chair")) {
addImageView2(R.drawable.chair2, hall);
}
}
}
private void addImageView(int imageRes, LinearLayoutCompat hall) {
iv = new ImageView(this);
iv.setImageResource(imageRes);
iv.setLayoutParams(new android.view.ViewGroup.LayoutParams(250, 250));
iv.setMaxHeight(180);
iv.setMaxWidth(120);
iv.setPadding(15,15,0,0);
hall.addView(iv);
}
private void addImageView2(int imageRes, LinearLayoutCompat hall) {
iv2 = new ImageView(this);
iv2.setImageResource(imageRes);
iv2.setLayoutParams(new android.view.ViewGroup.LayoutParams(150, 150));
iv2.setMaxHeight(30);
iv2.setMaxWidth(30);
iv2.setPadding(25,0,0,0);
hall.addView(iv2);
}
}
activity_main.xml This layout file has ConstraintLayout in Root.
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.andiroot.restaurantbook.MainActivity">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:minHeight="?attr/actionBarSize"
android:background="#ff1e8622"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
</android.support.v7.widget.Toolbar>
<RelativeLayout
android:layout_width="368dp"
android:layout_height="495dp"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="64dp">
<Button
android:id="@+id/btn_addtbl"
style="@style/Widget.AppCompat.Button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="76dp"
android:text="Add Table"
android:onClick="addtable"/>
<Button
android:id="@+id/btn_addchairs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:onClick="addchair"
android:layout_marginTop="27dp"
android:text="Add Chair"
android:layout_below="@+id/btn_addtbl"
android:layout_alignEnd="@+id/btn_addtbl" />
<Button
android:id="@+id/btn_reset"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignEnd="@+id/btn_addchairs"
android:layout_below="@+id/btn_addchairs"
android:layout_marginTop="51dp"
android:text="Reset" />
</RelativeLayout>
</android.support.constraint.ConstraintLayout>
activity_second.xml This layout file has LinearLayoutCompat in Root
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/hall_layout"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.andiroot.restaurantbook.Second">
<android.support.v7.widget.Toolbar
android:id="@+id/second_toolbar"
android:minHeight="?attr/actionBarSize"
android:background="#ff1e8622"
android:layout_width="match_parent"
android:layout_height="wrap_content">
</android.support.v7.widget.Toolbar>
<!--
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/hall_layout2">
</RelativeLayout>
-->
</android.support.v7.widget.LinearLayoutCompat>
</pre>
尝试这个
ImageView dishaIMG;
RelativeLayout cropperLayout;
float dX, dY;
float windowWidth, windowHeight;
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
windowHeight = displayMetrics.heightPixels;
windowWidth = displayMetrics.widthPixels;
cropperLayout = (RelativeLayout) findViewById(R.id.activity_main2);
dishaIMG = (ImageView) findViewById(R.id.img_disha);
dishaIMG.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent motionEvent) {
int width = dishaIMG.getLayoutParams().width;
int height = dishaIMG.getLayoutParams().height;
switch (motionEvent.getAction()) {
case MotionEvent.ACTION_DOWN:
dX = v.getX() - motionEvent.getRawX();
dY = v.getY() - motionEvent.getRawY();
case MotionEvent.ACTION_MOVE:
if (width == windowWidth && height == windowHeight) {
} else {
v.animate()
.x(motionEvent.getRawX() + dX)
.y(motionEvent.getRawY() + dY)
.setDuration(0)
.start();
if (motionEvent.getRawX() + dX + width > windowWidth) {
v.animate()
.x(windowWidth - width)
.setDuration(0)
.start();
}
if (motionEvent.getRawX() + dX < 0) {
v.animate()
.x(0)
.setDuration(0)
.start();
}
if (motionEvent.getRawY() + dY + height > windowHeight) {
v.animate()
.y(windowHeight - height)
.setDuration(0)
.start();
}
if (motionEvent.getRawY() + dY < 0) {
v.animate()
.y(0)
.setDuration(0)
.start();
}
}
}
return true;
}
});
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