1
在這裏，我想拖放正確的圖像，即左側的字母A到右側的圖像，並將分數設置爲1。但是，在編寫下面的代碼後，所有圖像在視圖外面都會消失。而且所有的圖像都會使得分數與正確的分數一起上升。任何人都可以幫助我？如何使正確的圖像放置在各自的圖像視圖？
我對Gameactivity代碼：
img1 = (ImageView) findViewById(R.id.ic_one);
img2 = (ImageView) findViewById(R.id.ic_two);
img3 = (ImageView) findViewById(R.id.ic_three);
img4 = (ImageView) findViewById(R.id.ic_four);
imgmain = (ImageView) findViewById(R.id.ic_main);
img1.setImageResource(R.mipmap.a1);
img2.setImageResource(R.mipmap.a2);
img3.setImageResource(R.mipmap.a3);
img4.setImageResource(R.mipmap.a4);
imgmain.setImageResource(R.mipmap.a1);
//setting touch listener
img1.setOnTouchListener(listenTouch);
img2.setOnTouchListener(listenTouch);
img3.setOnTouchListener(listenTouch);
img4.setOnTouchListener(listenTouch);
imgmain.setOnDragListener(listenDrag);
display = (TextView) findViewById(R.id.txtScore);
}
public View.OnTouchListener listenTouch = new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
//setup drag
ClipData data = ClipData.newPlainText("", "");
View.DragShadowBuilder shadowBuilder = new View.DragShadowBuilder(v);
v.startDrag(data, shadowBuilder, v, 0);
v.setVisibility(View.INVISIBLE);
return true;
} else {
return false;
}
}
};
public View.OnDragListener listenDrag = new View.OnDragListener() {
@Override
public boolean onDrag(View v, DragEvent event) {
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
case DragEvent.ACTION_DRAG_ENTERED:
//no action necessary
break;
case DragEvent.ACTION_DRAG_EXITED:
//no action necessary
break;
case DragEvent.ACTION_DROP:
//handle the dragged view being dropped over a drop view
if(v.getId() == R.id.ic_main) {
View view = (View) event.getLocalState();
ViewGroup viewgroup = (ViewGroup) view.getParent();
viewgroup.removeView(view);
//change the text
score++;
display.setText("Your score is : "+score);
view.setVisibility(View.VISIBLE);
} else {
View view = (View) event.getLocalState();
view.setVisibility(View.VISIBLE);
Context context = getApplicationContext();
Toast.makeText(context, "You can't drop the image here",
Toast.LENGTH_LONG).show();
break;
}
break;
case DragEvent.ACTION_DRAG_ENDED:
//no action necessary
break;
default:
break;
}
return true;
}
};
}
我的佈局代碼：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context="com.example.bhuwan.firstproject.GameActivity"
android:id="@+id/layout_game">
<ImageView
android:layout_width="150dp"
android:layout_height="150dp"
android:id="@+id/ic_main"
android:layout_alignBottom="@+id/ic_two"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginBottom="36dp" />
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/ic_one"
android:layout_alignParentTop="true" />
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/ic_two"
android:layout_marginTop="143dp"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/ic_three"
android:layout_alignParentTop="true"
android:layout_toRightOf="@+id/ic_one"
android:layout_toEndOf="@+id/ic_one" />
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:id="@+id/ic_four"
android:layout_alignTop="@+id/ic_two"
android:layout_toRightOf="@+id/ic_two"
android:layout_toEndOf="@+id/ic_two" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="@string/empty"
android:id="@+id/txtScore"
android:layout_marginBottom="60dp"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginLeft="42dp"
android:layout_marginStart="42dp" />
請更好地說明你擁有什麼。你有五個圖像我們可以看到。它們包含什麼？字母A-E的圖片？現在，如果你將A拖到D那麼會發生什麼？你沒有告訴。爲什麼兩個圖像包含相同的圖片？ – greenapps
我有五個圖像視圖之一是主視圖上的圖像形成其他四個圖像視圖應該放棄，在四個圖像視圖我有圖像的信件從一個 - E和主視圖我有四個圖像之一，所以我需要拖放正確的一個，錯誤的仍然照常。 @greenapps –
'所有圖像在視圖外面時都會消失。 」。那是因爲你馬上讓它們在onToch中不可見。不要這樣做。 – greenapps