如何CustomView添加到布局fromXML？ [英] How to add CustomView to Layout fromXML?
本文介绍了如何CustomView添加到布局fromXML？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我要添加这个PaintingView（）这是本次活动从XML文件中。
公共类全部扩展活动实现ColorPickerDialog.OnColorChangedListener {
@覆盖
保护无效的onCreate（捆绑savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.paint）; 的FrameLayout myFrameLayout =（的FrameLayout）findViewById（R.id.framelayout）;
MYIMAGE =（ImageView的）findViewById（R.id.ImageView01）;
InputStream为= this.getResources（）openRawResource（imageId1）。
originalBitmap = BitmapFactory.de codeStream（是）;
myimage.setImageBitmap（originalBitmap）;
myimage.setScaleType（ScaleType.MATRIX）; MVIEW =（PaintingView）findViewById（R.id.my_view）;
mView.setDrawingCacheEnabled（真）;
mView.setVisibility（View.INVISIBLE）;
最终的ImageButton漆=（的ImageButton）findViewById（R.id.paint_button）;
paint.setOnClickListener（新View.OnClickListener（）{
公共无效的onClick（查看视图）{
mView.setVisibility（View.VISIBLE）;
}
}）; mPaint =新的油漆（）;
mPaint.setAntiAlias（真）;
mPaint.setDither（真）;
mPaint.setColor（0xFFFF0000地址）;
mPaint.setStyle（Paint.Style.STROKE）;
mPaint.setStrokeJoin（Paint.Join.ROUND）;
mPaint.setStrokeCap（Paint.Cap.ROUND）;
mPaint.setStrokeWidth（4）;
运动模糊=新BlurMaskFilter（8 BlurMaskFilter.Blur.NORMAL）;////////////// ********创建菜单************* ///////////// ///私有静态最终诠释COLOR_MENU_ID = Menu.FIRST;
私有静态最终诠释BLUR_MENU_ID = Menu.FIRST + 1;
私有静态最终诠释ERASE_MENU_ID = Menu.FIRST + 2;
私有静态最终诠释BRUSH_MENU_ID = Menu.FIRST + 3;@覆盖
公共布尔onCreateOptionsMenu（菜单菜单）{
super.onCreateOptionsMenu（菜单）;
menu.add（0，COLOR_MENU_ID，0，颜色）setShortcut（'3'，'c'）中。
menu.add（0，BLUR_MENU_ID，0，夜光抽奖）setShortcut（'5'，'Z'）。
menu.add（0，ERASE_MENU_ID，0，清除）setShortcut（'5'，'Z'）。
menu.add（0，BRUSH_MENU_ID，0，刷）setShortcut（'5'，'Z'）。
返回true;
}@覆盖
prepareOptionsMenu（菜单菜单）上公共布尔{
super.on prepareOptionsMenu（菜单）;
返回true;
}@覆盖
公共布尔onOptionsItemSelected（菜单项项）{
mPaint.setXfermode（NULL）;
mPaint.setAlpha（0xFF的）; 开关（item.getItemId（））{
案例COLOR_MENU_ID：
新ColorPickerDialog（这个，这个，mPaint.getColor（））显示（）。
返回true;
案例ERASE_MENU_ID：
mPaint.setXfermode（新PorterDuffXfermode（PorterDuff.Mode.CLEAR））;
返回true;
案例BLUR_MENU_ID：
如果（mPaint.getMaskFilter（）！=运动模糊）{
mPaint.setMaskFilter（运动模糊）;
}其他{
mPaint.setMaskFilter（NULL）;
}
返回true;
案例BRUSH_MENU_ID： sizeSeekBar.setVisibility（View.VISIBLE）;
///////// ***************笔画宽度改变************* ////////// ////
sizeSeekBar.setOnSeekBarChangeListener（新SeekBar.OnSeekBarChangeListener（）{
@覆盖
公共无效onProgressChanged（搜索栏搜索栏，INT进步，布尔FROMUSER）{
strokeWidth = sizeSeekBar.getProgress（）; // B ==进度值。
mPaint.setStrokeWidth（strokeWidth）;
}
@覆盖
公共无效onStartTrackingTouch（搜索栏搜索栏）{}
@覆盖
公共无效onStopTrackingTouch（搜索栏搜索栏）{
上下文C = getBaseContext（）;
Toast.makeText（C，BrushWidth+ strokeWidth，Toast.LENGTH_SHORT）.show（）;
sizeSeekBar.setVisibility（View.INVISIBLE）;
}
}）;
返回true;
}
返回super.onOptionsItemSelected（项目）;
}///////变色功能，从ColorPickerDialog获得价值///////
公共无效colorChanged（INT颜色）{
mPaint.setColor（颜色）;
}//////////// ******************* Pinting观点***************** ** //////////////////////我的绘画观/////////
公共类PaintingView扩展视图{
INT BH = originalBitmap.getHeight（）;
INT体重= originalBitmap.getWidth（）;
公共PaintingView（上下文C）{
超（C）; // mBitmap = Bitmap.createScaledBitmap（originalBitmap，BW，BH，真正的）;
mBitmap = Bitmap.createBitmap（体重，BH，Bitmap.Config.ARGB_8888）;
mCanvas =新的Canvas（mBitmap）;
的mpath =新路径（）;
mBitmapPaint =新的油漆（Paint.DITHER_FLAG）;
mBitmapPaint.setXfermode（新PorterDuffXfermode（PorterDuff.Mode.SRC））;
}
公共PaintingView（上下文C中，int颜色）{
超（C）;
mBitmap = Bitmap.createBitmap（体重，BH，Bitmap.Config.ARGB_8888）;
// mBitmap = Bitmap.createScaledBitmap（originalBitmap，BW，BH，真正的）;
mCanvas =新的Canvas（mBitmap）;
的mpath =新路径（）;
mBitmapPaint =新的油漆（Paint.DITHER_FLAG）;
mBitmapPaint.setXfermode（新PorterDuffXfermode（PorterDuff.Mode.SRC））;
mCanvas.drawColor（颜色）;
}
@覆盖
保护无效onSizeChanged（INT W，INT小时，INT oldw，诠释oldh）{
super.onSizeChanged（W，H，oldw，oldh）;
/ * mBitmap = Bitmap.createBitmap（体重，BH，Bitmap.Config.ARGB_8888）;
mCanvas =新的Canvas（mBitmap）; * /
}
@覆盖
保护无效的onDraw（帆布油画）{
canvas.drawColor（Color.TRANSPARENT）;
canvas.drawBitmap（mBitmap，0，0，mBitmapPaint）;
canvas.drawPath（的mpath，mPaint）;
} //////// ************触摸evants绘画************** ///////
私人浮动MX，我的;
私有静态最终浮动TOUCH_TOLERANCE = 4;
私人无效touch_start（浮法X，浮法Y）{
mPath.reset（）;
mPath.moveTo（X，Y）;
MX = X;
我= Y;
}
私人无效TOUCH_MOVE（浮法X，浮法Y）{
浮DX = Math.abs（X - MX）;
浮DY = Math.abs（Y - 我的）;
如果（DX＆GT; = || TOUCH_TOLERANCE DY＆GT; = TOUCH_TOLERANCE）{
mPath.quadTo（MX，MY，（X + MX）/ 2，（Y + MY）/ 2）;
MX = X;
我= Y;
}
}
私人无效touch_up（）{
mPath.lineTo（MX，我的）;
//提交的路径，我们的屏幕外
mCanvas.drawPath（的mpath，mPaint）;
//杀死这个，所以我们不要双击平局
mPath.reset（）;
} @覆盖
公共布尔onTouchEvent（MotionEvent事件）{
浮X = event.getX（）;
浮Y = event.getY（）;
开关（event.getAction（））{
案例MotionEvent.ACTION_DOWN：
touch_start（X，Y）;
无效（）;
打破; 案例MotionEvent.ACTION_MOVE：
TOUCH_MOVE（X，Y）;
无效（）;
打破;
案例MotionEvent.ACTION_UP：
润色（）;
无效（）;
打破;
}
返回true;
} //图像触摸事件的结束} //结束MyView的
}
XML格式为：
//尝试过这样的不成功。
解决方案
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;的RelativeLayout的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：layout_width =FILL_PARENT机器人：layout_height =FILL_PARENT
机器人：ID =@ + ID / relativeLayout1＆GT; ＆LT; com.logistics.wheresTheParty.photoTab.ImageViewTouch
机器人：ID =@ + ID / imageViewTouch的android：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT/＆GT;＆LT; / RelativeLayout的＆GT;
更改按你的包名和类名...
I want to add this PaintingView() that is in this Activity from XML file.
public class Full extends Activity implements ColorPickerDialog.OnColorChangedListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.paint);
FrameLayout myFrameLayout = (FrameLayout) findViewById(R.id.framelayout);
myimage = (ImageView) findViewById(R.id.ImageView01);
InputStream is = this.getResources().openRawResource(imageId1);
originalBitmap = BitmapFactory.decodeStream(is);
myimage.setImageBitmap(originalBitmap);
myimage.setScaleType(ScaleType.MATRIX);
mView = (PaintingView)findViewById(R.id.my_view);
mView.setDrawingCacheEnabled(true);
mView.setVisibility(View.INVISIBLE);
final ImageButton paint = (ImageButton) findViewById(R.id.paint_button);
paint.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
mView.setVisibility(View.VISIBLE);
}
});
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setDither(true);
mPaint.setColor(0xFFFF0000);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeJoin(Paint.Join.ROUND);
mPaint.setStrokeCap(Paint.Cap.ROUND);
mPaint.setStrokeWidth(4);
mBlur = new BlurMaskFilter(8, BlurMaskFilter.Blur.NORMAL);
//////////////******** Menu Creation *************////////////////
private static final int COLOR_MENU_ID = Menu.FIRST;
private static final int BLUR_MENU_ID = Menu.FIRST + 1;
private static final int ERASE_MENU_ID = Menu.FIRST + 2;
private static final int BRUSH_MENU_ID = Menu.FIRST + 3;
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, COLOR_MENU_ID, 0, "Color").setShortcut('3', 'c');
menu.add(0, BLUR_MENU_ID, 0, "Glow Draw").setShortcut('5', 'z');
menu.add(0, ERASE_MENU_ID, 0, "Erase").setShortcut('5', 'z');
menu.add(0, BRUSH_MENU_ID, 0, "Brush").setShortcut('5', 'z');
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
mPaint.setXfermode(null);
mPaint.setAlpha(0xFF);
switch (item.getItemId()) {
case COLOR_MENU_ID:
new ColorPickerDialog(this,this, mPaint.getColor()).show();
return true;
case ERASE_MENU_ID:
mPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR));
return true;
case BLUR_MENU_ID:
if (mPaint.getMaskFilter() != mBlur) {
mPaint.setMaskFilter(mBlur);
} else {
mPaint.setMaskFilter(null);
}
return true;
case BRUSH_MENU_ID:
sizeSeekBar.setVisibility(View.VISIBLE);
/////////*************** Stroke width changed *************//////////////
sizeSeekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener(){
@Override
public void onProgressChanged(SeekBar seekBar,int progress, boolean fromUser) {
strokeWidth = sizeSeekBar.getProgress(); // b == progress value.
mPaint.setStrokeWidth(strokeWidth);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) { }
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
Context c = getBaseContext();
Toast.makeText(c, " BrushWidth " + strokeWidth, Toast.LENGTH_SHORT).show();
sizeSeekBar.setVisibility(View.INVISIBLE);
}
});
return true;
}
return super.onOptionsItemSelected(item);
}
/////// colour changed function, getting value from ColorPickerDialog ///////
public void colorChanged(int color) {
mPaint.setColor(color);
}
////////////******************* Pinting view *******************///////////////////
/// MY PAINTING view /////////
public class PaintingView extends View {
int bh = originalBitmap.getHeight();
int bw = originalBitmap.getWidth();
public PaintingView(Context c) {
super(c);
//mBitmap = Bitmap.createScaledBitmap(originalBitmap,bw,bh,true);
mBitmap = Bitmap.createBitmap(bw,bh,Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);
mPath = new Path();
mBitmapPaint = new Paint(Paint.DITHER_FLAG);
mBitmapPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
}
public PaintingView (Context c, int color) {
super(c);
mBitmap = Bitmap.createBitmap(bw,bh,Bitmap.Config.ARGB_8888);
//mBitmap = Bitmap.createScaledBitmap(originalBitmap,bw,bh,true);
mCanvas = new Canvas(mBitmap);
mPath = new Path();
mBitmapPaint = new Paint(Paint.DITHER_FLAG);
mBitmapPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC)) ;
mCanvas.drawColor(color);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
/*mBitmap = Bitmap.createBitmap(bw, bh, Bitmap.Config.ARGB_8888);
mCanvas = new Canvas(mBitmap);*/
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.TRANSPARENT);
canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
canvas.drawPath(mPath, mPaint);
}
////////************touching evants for painting**************///////
private float mX, mY;
private static final float TOUCH_TOLERANCE = 4;
private void touch_start(float x, float y) {
mPath.reset();
mPath.moveTo(x, y);
mX = x;
mY = y;
}
private void touch_move(float x, float y) {
float dx = Math.abs(x - mX);
float dy = Math.abs(y - mY);
if (dx >= TOUCH_TOLERANCE || dy >= TOUCH_TOLERANCE) {
mPath.quadTo(mX, mY, (x + mX)/2, (y + mY)/2);
mX = x;
mY = y;
}
}
private void touch_up() {
mPath.lineTo(mX, mY);
// commit the path to our offscreen
mCanvas.drawPath(mPath, mPaint);
// kill this so we don't double draw
mPath.reset();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
invalidate();
break;
case MotionEvent.ACTION_MOVE:
touch_move(x, y);
invalidate();
break;
case MotionEvent.ACTION_UP:
touch_up();
invalidate();
break;
}
return true;
} //end of touch events for image
}// end MyView
}
Xml format is: // tried like this UnSuccess.
解决方案
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent"
android:id="@+id/relativeLayout1">
<com.logistics.wheresTheParty.photoTab.ImageViewTouch
android:id="@+id/imageViewTouch" android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
</RelativeLayout>
Change as per your package name and classname....
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