My XML:
我的XML：
<LinearLayout 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:orientation="horizontal"
android:weightSum="1" >
<LinearLayout
android:id="@+id/leftLayout"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".5"
android:orientation="vertical"
android:weightSum="1" >
<LinearLayout
android:id="@+id/firstProblem"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=".5"
android:weightSum="1" >
<com.student.spelling.SpellViewFirst
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="3dp"
android:background="@android:color/black" />
<LinearLayout
android:id="@+id/secondProblem"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=".5"
android:weightSum="1" >
<com.student.spelling.SpellViewFirst
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
<View
android:layout_width="3dp"
android:layout_height="fill_parent"
android:background="@android:color/black" />
<LinearLayout
android:id="@+id/rightLayout"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight=".5"
android:orientation="vertical"
android:weightSum="1" >
<LinearLayout
android:id="@+id/thirdProblem"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=".5"
android:weightSum="1" >
<com.student.spelling.SpellViewFirst
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
<View
android:layout_width="match_parent"
android:layout_height="3dp"
android:background="@android:color/black" />
<LinearLayout
android:id="@+id/fourthProblem"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight=".5"
android:weightSum="1" >
<com.student.spelling.SpellViewFirst
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
My View Class :
我的观点类：
public class SpellViewFirst extends View {
private StartActivity studentActivity;
private int screenWidth;
private int screenHeight;
private Bitmap imageBitmap;
private ArrayList<Character> charList;
List<SpellObjects> spellObjectsList;
private String word;
int placeHolderHeight;
private ArrayList<Integer> dragable_id_object_list;
private Bitmap placeHolderBitmap;
Point placeHolderPoints;
Point alphabetPoints;
private int indexOfCurrentObject;
private int offsetX;
private int offsetY;
public SpellViewFirst(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
studentActivity = (StartActivity)context;
}
@Override
protected void onSizeChanged(int width, int height, int oldwidth, int oldheight) {
// TODO Auto-generated method stub
super.onSizeChanged(width, height, oldwidth, oldheight);
screenWidth = width;
screenHeight = height;
assignCoordinatesToImages();
}
private void assignCoordinatesToImages() {
// TODO Auto-generated method stub
Bitmap bm=BitmapFactory.decodeFile("/mnt/sdcard/resources/images/spelling/ques.png");
dragable_id_object_list=new ArrayList<Integer>() ;
spellObjectsList=new ArrayList<SpellObjects>();
SpellObjects curentObjects;
placeHolderHeight=bm.getHeight();
word=studentActivity.correctWordsArray[0];
imageBitmap=BitmapFactory.decodeFile("/mnt/sdcard/resources/images/spelling/"+word+".png");
placeHolderBitmap=Bitmap.createScaledBitmap(bm, screenWidth/word.length(), screenWidth/word.length(),true);
charList=new ArrayList<Character>();
placeHolderPoints=new Point();
for (int i = 0; i < word.length(); i++) {
charList.add(word.charAt(i));
}
for (int i = 0; i < charList.size(); i++) {
placeHolderPoints.y=screenHeight/2;
curentObjects=new SpellObjects(placeHolderPoints, placeHolderBitmap, -1,charList.get(i), null, placeHolderBitmap.getHeight(), screenWidth/word.length(), true);
placeHolderPoints.x=placeHolderPoints.x+screenWidth/word.length();
spellObjectsList.add(curentObjects);
}
Collections.shuffle(charList);
alphabetPoints=new Point();
alphabetPoints.x=imageBitmap.getWidth();
for (int i = 0; i < charList.size(); i++) {
Bitmap bitmap= BitmapFactory.decodeFile("/mnt/sdcard/resources/images/spelling/"+charList.get(i)+".png");
curentObjects=new SpellObjects(alphabetPoints,bitmap, i,charList.get(i), null, placeHolderBitmap.getHeight(), screenWidth/word.length(), true);
alphabetPoints.x=alphabetPoints.x+bitmap.getWidth();
spellObjectsList.add(curentObjects);
dragable_id_object_list.add(i, i);
}
}
@Override
protected void onDraw(Canvas canvas) {
// TODO Auto-generated method stub
super.onDraw(canvas);
canvas.drawBitmap(imageBitmap, 0, 0, null);
for(SpellObjects currentObjects :spellObjectsList ){
if(currentObjects.getIsCorrectlyPlaced())
canvas.drawBitmap(currentObjects.getobjectBitmap(), currentObjects.getCurrentPoint().x,currentObjects.getCurrentPoint().y, null);
}
}
}
I want to render like cake,duck and good in other three quadrants.Actually this is spelling app for kids where they can drag and drop alphabets to respective positions.Please help me out I am stuck.
我想在其他三个象限中呈现像蛋糕，鸭子和好的东西。实际上这是拼写应用程序的孩子，他们可以拖放字母到各自的位置。请帮助我，我被卡住了。
1 个解决方案
#1
1
I want to render like cake,duck and good in other three quadrants.
我想在其他三个象限中呈现像蛋糕，鸭子和好蛋糕。
To set different images for your custom View you'll need to add a custom attribute for your custom layout to signal the desired image(or an id, or something to uniquely identify the view). Something like this(in attr.xml):
要为自定义视图设置不同的图像，您需要为自定义布局添加自定义属性，以指示所需的图像（或ID或用于唯一标识视图的内容）。像这样的东西（在attr.xml中）：
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="CustomAttr">
<attr name="pictureName" format="string" />
</declare-styleable>
</resources>
This attribute will be used in the layout like this:
此属性将在布局中使用，如下所示：
<com.student.spelling.SpellViewFirst
android:layout_width="match_parent"
android:layout_height="match_parent"
newtag:pictureName="one_of_your_picture_names_here"/>
Don't forget to set the newtag namespace in the root of your xml layout:
不要忘记在xml布局的根目录中设置newtag名称空间：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:newtag="http://schemas.android.com/apk/res/your.package.here"
// ...
Then you'll use that attribute to make the SpellViewFirst use the targeted image:
然后，您将使用该属性使SpellViewFirst使用目标图像：
public SpellViewFirst(Context context, AttributeSet attrs) {
super(context, attrs);
studentActivity = (StartActivity)context;
if (attrs != null) {
TypedArray ta = context.obtainStyledAttributes(attrs,
R.styleable.CustomAttr, 0, 0);
word = ta.getString();// this is what you use to get the picture name, right?
ta.recycle();
}
}
Then you could use the word variable to get the desired Bitmap in assignCoordinatesToImages(). Don't forget to test word for null(meaning a picture name wasn't set in the layout) and show a default image instead.
然后，您可以使用单词变量在assignCoordinatesToImages（）中获取所需的位图。不要忘记测试单词为null（意味着图片名称未在布局中设置）并显示默认图像。
#1
1
I want to render like cake,duck and good in other three quadrants.
我想在其他三个象限中呈现像蛋糕，鸭子和好蛋糕。
To set different images for your custom View you'll need to add a custom attribute for your custom layout to signal the desired image(or an id, or something to uniquely identify the view). Something like this(in attr.xml):
要为自定义视图设置不同的图像，您需要为自定义布局添加自定义属性，以指示所需的图像（或ID或用于唯一标识视图的内容）。像这样的东西（在attr.xml中）：
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="CustomAttr">
<attr name="pictureName" format="string" />
</declare-styleable>
</resources>
This attribute will be used in the layout like this:
此属性将在布局中使用，如下所示：
<com.student.spelling.SpellViewFirst
android:layout_width="match_parent"
android:layout_height="match_parent"
newtag:pictureName="one_of_your_picture_names_here"/>
Don't forget to set the newtag namespace in the root of your xml layout:
不要忘记在xml布局的根目录中设置newtag名称空间：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:newtag="http://schemas.android.com/apk/res/your.package.here"
// ...
Then you'll use that attribute to make the SpellViewFirst use the targeted image:
然后，您将使用该属性使SpellViewFirst使用目标图像：
public SpellViewFirst(Context context, AttributeSet attrs) {
super(context, attrs);
studentActivity = (StartActivity)context;
if (attrs != null) {
TypedArray ta = context.obtainStyledAttributes(attrs,
R.styleable.CustomAttr, 0, 0);
word = ta.getString();// this is what you use to get the picture name, right?
ta.recycle();
}
}
Then you could use the word variable to get the desired Bitmap in assignCoordinatesToImages(). Don't forget to test word for null(meaning a picture name wasn't set in the layout) and show a default image instead.
然后，您可以使用单词变量在assignCoordinatesToImages（）中获取所需的位图。不要忘记测试单词为null（意味着图片名称未在布局中设置）并显示默认图像。