我正在以编程方式ImageViews创建并以相同的布局拖动它们。
我想禁用此ImageView的重叠。当我以编程方式或其他方式创建每个ImageView时，是否有应用于禁用重叠的设置？
public class MainActivity extends ActionBarActivity {
private int offset_x = 0;
private int offset_y = 0;
RelativeLayout canvas;
LinearLayout buttonslayout;
boolean isselected = false;
View selected_item = null;
int test1,test2;
Button save,newdoor,newwindow,rotate;
TextView xcoord,ycoord;
//static final int SNAP_GRID_INTERVAL = 43;
static final int SNAP_GRID_INTERVAL = 44;
static final int SNAP_GRID_INTERVAL2 = 25;
@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
canvas = (RelativeLayout) findViewById(R.id.container2);
ViewGroup vg = (ViewGroup)findViewById(R.id.container3);
//buttonslayout = (LinearLayout) findViewById(R.id.container3);
save = (Button) findViewById(R.id.savebtn);
newdoor = (Button) findViewById(R.id.btnnewdoor);
newwindow = (Button) findViewById(R.id.btnnewwindow);
xcoord = (TextView) findViewById(R.id.xcoord);
ycoord = (TextView) findViewById(R.id.ycoord);
rotate = (Button) findViewById(R.id.rotate);
newwindow.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
final int lungime = 66;
final int inaltime = 20;
final int []lastcoords = new int[2];
final int canvasWidth = canvas.getWidth();
final int canvasHeight = canvas.getHeight();
RelativeLayout mylayout = (RelativeLayout) findViewById(R.id.container2);
final View canvas = ((View) v.getParent());
final int []coordwall = new int[2];
mylayout.getLocationInWindow(coordwall);
final ImageView image = new ImageView(getBaseContext());
image.setBackgroundResource(R.drawable.element_window);
mylayout.addView(image);
image.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
offset_x = (int)event.getX();
offset_y = (int)event.getY();
selected_item = v;
isselected = true;
xcoord.setText("X: "+lastcoords[0]);
ycoord.setText("Y: "+lastcoords[1]);
Log.i("test","Isselected = "+isselected);
break;
default:
break;
}
return false;
}
});
rotate.setOnClickListener(new View.OnClickListener() {
int grad=0;
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
if(grad!=1)
{
image.setRotation(90);
grad=1;
}
else
{
image.setRotation(180);
grad=0;
}
}
});
mylayout.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
MarginLayoutParams marginParams = new MarginLayoutParams(v.getLayoutParams());
switch(event.getAction())
{
case MotionEvent.ACTION_UP:
isselected = false;
Log.i("test","Isselected = "+isselected);
break;
case MotionEvent.ACTION_MOVE:
if(isselected == true)
{
View canvas = ((View) v.getParent());
final int width = v.getWidth() / 2, height = v.getHeight() / 2;
int x = (int)event.getX() - offset_x;
int y = (int)event.getY() - offset_y;
int w = getWindowManager().getDefaultDisplay().getWidth() - 100;
int h = getWindowManager().getDefaultDisplay().getHeight() - 100;
int rawX = (int) event.getRawX(), rawY = (int) event.getRawY();
int x_coord = (int) event.getRawX() - coordwall[0] - width;
int y_coord = (int) event.getRawY() - coordwall[1] - height;
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(
new ViewGroup.MarginLayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT));
if (rawY < coordwall[1] + inaltime / 2)
lp.topMargin = 0;
else
if (rawY >= coordwall[1] + canvasHeight - inaltime )
lp.topMargin = canvasHeight - inaltime*2;
else
lp.topMargin = y / SNAP_GRID_INTERVAL * SNAP_GRID_INTERVAL;
if(rawX < coordwall[0] + lungime / 2)
lp.leftMargin = 0;
else
if(rawX >= coordwall[0] + canvasWidth - lungime)
{
lp.leftMargin = canvasWidth - lungime*2;
Log.i("arry","leftmargin = " + lp.leftMargin);
}
else
lp.leftMargin = x / SNAP_GRID_INTERVAL * SNAP_GRID_INTERVAL;
lastcoords[0] = lp.leftMargin;
lastcoords[1] = lp.topMargin;
xcoord.setText("X: "+lp.leftMargin);
ycoord.setText("Y: "+lp.topMargin);
lp.setMargins(lp.leftMargin, lp.topMargin, 0, 0);
selected_item.setLayoutParams(lp);
}
break;
default:
break;
}
return true;
}
});
}
});
和xml：
LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#000000"
android:orientation="horizontal"
tools:context="com.example.draganddrop.MainActivity"
tools:ignore="MergeRootFrame" >
<LinearLayout
android:id="@+id/container3"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:background="#848484"
android:orientation="vertical" >
<Button
android:id="@+id/savebtn"
style="@drawable/new_wall"
android:layout_width="100dp"
android:layout_height="30dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="5dp"
android:background="@drawable/new_wall"
android:textSize="13sp" />
<Button
android:id="@+id/btnnewwindow"
android:layout_width="100dp"
android:layout_height="30dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="5dp"
android:background="@drawable/new_window"
android:textSize="13sp" />
<Button
android:id="@+id/btnnewdoor"
android:layout_width="100dp"
android:layout_height="30dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="5dp"
android:background="@drawable/new_door"
android:textSize="14sp" />
<TextView
android:id="@+id/xcoord"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="5dp"
android:text="X: " />
<TextView
android:id="@+id/ycoord"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:text="Y: " />
<Button
android:id="@+id/rotate"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Rotate" />
</LinearLayout>
<RelativeLayout
android:id="@+id/container2"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#FFFFFF" >
</RelativeLayout>
</LinearLayout>
答案 0 :(得分：0)
目前还不是很清楚你想要做什么，但如果我理解你的方法正确，你想要以编程方式将一些ImageView设置为布局吗？为什么你的观点重叠？我想你必须为你的视图容器设置布局参数：
//after onCreate in the activity, create the LinearLayout (for example)
//and set the LayoutParams, if You have no one declared in Your xml
LinearLayout linearLayout= new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
linearLayout.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT));
//then create the imageView, set the image inside and add it to the container
ImageView imageView = new ImageView(this);
imageView.setImageResource(R.drawable.your_image);
imageView.setLayoutParams(new LayoutParams(
LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
linearLayout.addView(imageView);
//set all as content
setContentView(linearLayout);