package com.example.artsecappp;
import android.app.Activity;
import android.content.ClipData;
import android.content.Intent;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.view.DragEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.DragShadowBuilder;
import android.view.View.OnClickListener;
import android.view.View.OnDragListener;
import android.view.View.OnTouchListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.GridLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.Toast;
public class DragandDrop extends Activity {
Button b1, c1;
GridLayout grd;
public int id, iID, IDL, DropId;
LinearLayout l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12;
public ImageView img, i1, i2, i3, i4, i5, i6, i7, i8, i9, i10, i11, i12;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dragand_drop);
grd = (GridLayout) findViewById(R.id.gridviewww);
l1 = (LinearLayout) findViewById(R.id.zerozero);
l2 = (LinearLayout) findViewById(R.id.onezero);
l3 = (LinearLayout) findViewById(R.id.twozero);
l4 = (LinearLayout) findViewById(R.id.zeroone);
l5 = (LinearLayout) findViewById(R.id.oneone);
l6 = (LinearLayout) findViewById(R.id.twoone);
l7 = (LinearLayout) findViewById(R.id.zerotwo);
l8 = (LinearLayout) findViewById(R.id.onetwo);
l9 = (LinearLayout) findViewById(R.id.twotwo);
l10 = (LinearLayout) findViewById(R.id.zerothree);
l11 = (LinearLayout) findViewById(R.id.onethree);
l12 = (LinearLayout) findViewById(R.id.twothree);
i1 = (ImageView) findViewById(R.id.myimage1);
i2 = (ImageView) findViewById(R.id.myimage2);
i3 = (ImageView) findViewById(R.id.myimage3);
i4 = (ImageView) findViewById(R.id.myimage4);
i5 = (ImageView) findViewById(R.id.myimage5);
i6 = (ImageView) findViewById(R.id.myimage6);
i7 = (ImageView) findViewById(R.id.myimage7);
i8 = (ImageView) findViewById(R.id.myimage8);
i9 = (ImageView) findViewById(R.id.myimage9);
i10 = (ImageView) findViewById(R.id.myimage10);
i11 = (ImageView) findViewById(R.id.myimage11);
i12 = (ImageView) findViewById(R.id.myimage12);
findViewById(R.id.myimage1).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage2).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage3).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage4).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage5).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage6).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage7).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage8).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage9).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage10).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage11).setOnTouchListener(new MyTouchListener());
findViewById(R.id.myimage12).setOnTouchListener(new MyTouchListener());
findViewById(R.id.zerozero).setOnDragListener(new MyDragListener());
findViewById(R.id.zeroone).setOnDragListener(new MyDragListener());
findViewById(R.id.zerotwo).setOnDragListener(new MyDragListener());
findViewById(R.id.zerothree).setOnDragListener(new MyDragListener());
findViewById(R.id.zerofour).setOnDragListener(new MyDragListener());
findViewById(R.id.onezero).setOnDragListener(new MyDragListener());
findViewById(R.id.oneone).setOnDragListener(new MyDragListener());
findViewById(R.id.onetwo).setOnDragListener(new MyDragListener());
findViewById(R.id.onethree).setOnDragListener(new MyDragListener());
findViewById(R.id.onefour).setOnDragListener(new MyDragListener());
findViewById(R.id.twozero).setOnDragListener(new MyDragListener());
findViewById(R.id.twoone).setOnDragListener(new MyDragListener());
findViewById(R.id.twotwo).setOnDragListener(new MyDragListener());
findViewById(R.id.twothree).setOnDragListener(new MyDragListener());
findViewById(R.id.twofour).setOnDragListener(new MyDragListener());
i1.setId(1);
i2.setId(2);
i3.setId(3);
i4.setId(4);
i5.setId(5);
i6.setId(6);
i7.setId(7);
i8.setId(8);
i9.setId(9);
i10.setId(10);
i11.setId(11);
i12.setId(12);
l1.setId(20);
l2.setId(21);
l3.setId(22);
l4.setId(23);
l5.setId(24);
l6.setId(25);
l7.setId(26);
l8.setId(27);
l9.setId(28);
l10.setId(29);
l11.setId(30);
l12.setId(31);
b1 = (Button) findViewById(R.id.back);
c1 = (Button) findViewById(R.id.cntnue);
c1.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Intent intnt = new Intent(DragandDrop.this, Confirmation.class);
startActivity(intnt);
}
});
}
public class MyTouchListener implements OnTouchListener {
public boolean onTouch(View view, MotionEvent motionEvent) {
MyDragListener drag = new MyDragListener();
drag.view1 = view;
if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
// Getting id of image which is dragged from any of linear
// layout
iID = view.getId();
img = (ImageView) view;
Toast.makeText(DragandDrop.this, "Image ID::" + iID,
Toast.LENGTH_LONG).show();
ClipData data = ClipData.newPlainText("", "");
DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(
view);
view.startDrag(data, shadowBuilder, view, 0);
//view.setVisibility(View.VISIBLE);
return true;
} else {
return false;
}
}
}
public class MyDragListener implements OnDragListener {
Drawable enterShape = getResources().getDrawable(
R.drawable.shape_droptarget);
Drawable normalShape = getResources().getDrawable(R.drawable.shape);
public View view1;
@Override
public boolean onDrag(View v, DragEvent event) {
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
// do nothing
break;
case DragEvent.ACTION_DRAG_ENTERED:
v.setBackgroundDrawable(enterShape);
break;
case DragEvent.ACTION_DRAG_EXITED:
v.setBackgroundDrawable(normalShape);
break;
case DragEvent.ACTION_DROP:
// Dropped, reassign View to ViewGroup
View view = (View) event.getLocalState();
ViewGroup owner = (ViewGroup) view.getParent();
Toast.makeText(getApplicationContext(), "<>>>>>>>>>>>"+ owner.getId(), Toast.LENGTH_LONG).show();
owner.removeView(view);
LinearLayout container = (LinearLayout) v;
container.addView(view);
view.setVisibility(View.VISIBLE);
DropId = v.getId();
Toast.makeText(DragandDrop.this, "Drop ID::" + DropId +" Linear Layout >>>>"+ container.getId(),
Toast.LENGTH_LONG).show();
// int child = container.getChildCount();
// Toast.makeText(getApplicationContext(), "No Of hild >>>" + child, Toast.LENGTH_LONG).show();
// ImageView imgC = (ImageView) container.getChildAt(0);
//
// Drawable currentDraw = imgC.getDrawable();
//
// Drawable selectedDraw = img.getDrawable();
//
// imgC.setImageDrawable(selectedDraw);
//
// img.setImageDrawable(currentDraw);
if(l1.getId()==20)
{
int childcount1 = l1.getChildCount();
View vat1 = null;
for (int i = 0; i < childcount1; i++) {
vat1 = l1.getChildAt(i);
Toast.makeText(new DragandDrop(), "Childcount in l1=="+ childcount1,Toast.LENGTH_LONG).show();
}
vat1.setVisibility(View.VISIBLE);
}
if(l2.getId()==21)
{
int childcount2 = l2.getChildCount();
View vat2 = null;
for (int i = 0; i < childcount2; i++) {
vat2 = l2.getChildAt(i);
Toast.makeText(new DragandDrop(), "Childcount in l1=="+ childcount2,Toast.LENGTH_LONG).show();
}
vat2.setVisibility(View.VISIBLE);
}
break;
case DragEvent.ACTION_DRAG_ENDED:
v.setBackgroundDrawable(normalShape);
default:
break;
}
return true;
}
}
}
错误
04-17 12:48:34.390: I/System.out(452): measured width0
04-17 12:48:34.500: I/System.out(452): width0
04-17 12:48:34.580: I/System.out(452): windowwidth480
04-17 12:48:34.580: I/System.out(452): windowheight800
04-17 12:48:34.680: D/AndroidRuntime(452): Shutting down VM
04-17 12:48:34.690: W/dalvikvm(452): threadid=1: thread exiting with uncaught exception (group=0x409961f8)
04-17 12:48:34.720: E/AndroidRuntime(452): FATAL EXCEPTION: main
04-17 12:48:34.720: E/AndroidRuntime(452): java.lang.IllegalArgumentException: Window type can not be changed after the window is added.
04-17 12:48:34.720: E/AndroidRuntime(452): at android.os.Parcel.readException(Parcel.java:1331)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.os.Parcel.readException(Parcel.java:1281)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.view.IWindowSession$Stub$Proxy.relayout(IWindowSession.java:626)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.view.ViewRootImpl.relayoutWindow(ViewRootImpl.java:3558)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1165)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2418)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.os.Handler.dispatchMessage(Handler.java:99)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.os.Looper.loop(Looper.java:137)
04-17 12:48:34.720: E/AndroidRuntime(452): at android.app.ActivityThread.main(ActivityThread.java:4340)
04-17 12:48:34.720: E/AndroidRuntime(452): at java.lang.reflect.Method.invokeNative(Native Method)
我正在致命的例外。我要做的是计算掉落条件下每个布局的子计数。确切地说，我必须将图像从一个线性布局拖放到另一个。在添加条件之前我是拖放成功的。但在添加条件时，会发生致命异常。所以请帮助我。提前谢谢..
答案 0 :(得分：1)
试试这个..
将new DragandDrop()
DragandDrop.this更改为Toast
更改此
Toast.makeText(new DragandDrop(), "Childcount in l1=="+ childcount1,Toast.LENGTH_LONG).show();
到
Toast.makeText(DragandDrop.this, "Childcount in l1=="+ childcount1,Toast.LENGTH_LONG).show();