I am working on a code where we use canvas to detect the touch on the screen.As of now the canvas is been directly drawn.How to add it as part of a view which comprises of other elements in xml.Here is the code
public class Tutorial2D extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(new Panel(this));
}
}
Here is the other part of it
public class Panel extends SurfaceView implements SurfaceHolder.Callback {
private ViewThread mThread;
private ArrayList<Element> mElements = new ArrayList<Element>();
public Panel(Context context) {
super(context);
getHolder().addCallback(this);
mThread = new ViewThread(this);
}
public void doDraw(Canvas canvas) {
canvas.drawColor(Color.TRANSPARENT);
synchronized (mElements) {
for (Element element : mElements) {
element.doDraw(canvas);
}
}
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
// TODO Auto-generated method stub
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
if (!mThread.isAlive()) {
mThread = new ViewThread(this);
mThread.setRunning(true);
mThread.start();
}
}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
if (mThread.isAlive()) {
mThread.setRunning(false);
}
}
#Override
public boolean onTouchEvent(MotionEvent event) {
synchronized (mElements) {
mElements.add(new Element(getResources(), (int) event.getX(), (int) event.getY()));
}
return super.onTouchEvent(event);
}
}
How to add this canvas to the main xml and been displayed over an image,any snippet on this or how should I change working on this code,anything will be greatful.Thanks
Try this constructor for the Panel class:
public Panel(Context context, AttributeSet attrs) {
super(context, attrs);
getHolder().addCallback(this);
mThread = new ViewThread(this);
}
You can use the custom view in xml layout with its package name. For example, in main.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello" />
<your.package.name.Panel
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
Then, in onCreate of your activity:
setContentView(R.layout.main);
Related
I am trying to draw based on my trace over the screen. In this process my onTouch and OnDraw is not being executed. Could you please assist me to correct this code ?
Xml
<LinearLayout
xmlns:tools="http://schemas.android.com/tools"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="100"
android:orientation="vertical"
android:background="#ffff0000" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="60"
android:gravity="center" >
<com.example.test2.PathDraw
android:id="#+id/surfaceView"
android:layout_width="match_parent"
android:layout_height="140dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:weightSum="40"
android:gravity="center" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/lion" />
</LinearLayout>
MainActivity
public class MainActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
PathDraw sineWaveSurfaceView = (PathDraw) findViewById(R.id.surfaceView);
}
}
PathDraw
public class PathDraw extends SurfaceView implements SurfaceHolder.Callback
{
private Context context;
// List<Point> points;
ArrayList<Point> points = new ArrayList<Point>();
public PathDraw(Context context) {
super(context);
// TODO Auto-generated constructor stub
}
public PathDraw(Context context, AttributeSet attrs) {
super(context, attrs);
// TODO Auto-generated constructor stub
this.context = context;
getHolder().addCallback(this);
}
public PathDraw(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
// TODO Auto-generated constructor stub
}
protected void OnDraw(Canvas canvas, int value) {
Paint paint = new Paint();
paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setStyle(Paint.Style.STROKE);
paint.setStrokeWidth(2);
paint.setColor(Color.WHITE);
Path path = new Path();
boolean first = true;
for(Point point : points){
if(first){
first = false;
path.moveTo(point.x, point.y);
}
else{
path.lineTo(point.x, point.y);
}
}
canvas.drawPath(path, paint);
}
public boolean onTouch(View view, MotionEvent event) {
// if(event.getAction() != MotionEvent.ACTION_DOWN)
// return super.onTouchEvent(event);
Point point = new Point();
point.x = event.getX();
point.y = event.getY();
points.add(point);
invalidate();
Log.d("PathDraw", "point: " + point);
return true;
}
#Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
}
#Override
public void surfaceCreated(SurfaceHolder arg0) {
// TODO Auto-generated method stub
}
#Override
public void surfaceDestroyed(SurfaceHolder arg0) {
// TODO Auto-generated method stub
}
}
OnTouch is not called
I also had the exact same problem earlier today.
Class PathDraw should implement OnTouchListener, then set the listener to itself, do something like this:
public class PathDraw extends SurfaceView implements OnTouchListener, SurfaceHolder.Callback{
...
public PathDraw(Context context){
super(context);
setOnTouchListener(PathDraw.this);
}
OnDraw is not called
This post might help:
Android Custom Layout - onDraw() never gets called
I am having trouble putting all the pieces together. I have 3 classes: DefaultActivity that extends Activity, MyView that extends SurfaceView, and ResistorView that extends a View.
What I want to know is how draw a resistor every time I click the button bAddResistor from the DefaultActivity class? Here are some parts from the 3 classes:
DefaultActivity.java
public class DefaultActivity extends Activity {
//MyView myView;
TextView myText;
ResistorView myResistor;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//myView = (MyView) findViewById(R.id.my_view);
//myView = new MyView(this, null);
//myResistor = new ResistorView(this);
//myView.setBackgroundColor(Color.WHITE);
//myView.setScrollContainer(true);
setContentView(R.layout.main);
final Button bAddResistor = (Button) findViewById(R.id.bAdd);
bAddResistor.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
Global.numberOfResistors++;
Log.d("ButtonADD", "Button Add has been clicked");
}
});
}
}
MyView.java
public class MyView extends SurfaceView implements SurfaceHolder.Callback {
public MyView(Context context, AttributeSet attrs) {
super(context, attrs);
getHolder().addCallback(this);
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
Canvas c = holder.lockCanvas();
onDraw(c);
holder.unlockCanvasAndPost(c);
}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
}
}
ResistorView.java
public class ResistorView extends View {
private Path mSymbol;
private Paint mPaint;
//...Override Constructors...
public ResistorView(Context context) {
super(context);
init();
}
public ResistorView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
private void init() {
mSymbol = new Path();
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setStrokeWidth(2);
mPaint.setColor(-7829368);
mPaint.setStyle(Paint.Style.STROKE);
//...Your code here to set up the path,
//...allocate objects here, never in the drawing code.
mSymbol.moveTo(0.0F, 0.0F);
mSymbol.lineTo(0.0F, 50.0F);
mSymbol.lineTo(16.666666F, 58.333332F);
mSymbol.lineTo(-16.666666F, 75.0F);
mSymbol.lineTo(16.666666F, 91.666664F);
mSymbol.lineTo(-16.666666F, 108.33333F);
mSymbol.lineTo(16.666666F, 124.99999F);
mSymbol.lineTo(-16.666666F, 141.66666F);
mSymbol.lineTo(0.0F, 150.0F);
mSymbol.lineTo(0.0F, 200.0F);
mSymbol.offset(100.0F, 20.0F);
}
//...Override onMeasure()...
#Override
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//Use this method to tell Android how big your view is
setMeasuredDimension(50, 50);
}
//...Override onDraw()...
#Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawPath(mSymbol, mPaint);
}
}
and the main.xml layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/RelativeLayout"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:ignore="HardcodedText" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/RightLayout"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:layout_alignParentRight="true"
android:background="#00000000"
android:orientation="vertical" >
<Button
android:id="#+id/bAdd"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add RES" />
<Button
android:id="#+id/bDeleate"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Del RES" />
</LinearLayout>
<com.defaul.android.MyView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_toLeftOf="#id/RightLayout"
android:background="#ff000000" />
</RelativeLayout>
If I put the drawing code in MyView.onDraw it works fine, the resistor is drawn. What I want is to click a button and draw the resistor on the surface, so every time I click I want a resistor to be added to the surface view.
Probably I'm approaching this problem in the opposite direction. If anyone can point me in the right direction I would really appreciated it.
Since I could not find a way to do what I wanted with SurfaceView I just created a class that extends View and then just add that view to my main layout.
In case it might help someone, below is a simplified version of my code:
public class CircuitSolverActivity extends Activity {
/** Called when the activity is first created. */
RelativeLayout mLayout;
MyView mView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mLayout = (RelativeLayout)findViewById(R.id.elementContainer);
}
public void bAddView(View view){
mView = new MyView(context);
mView.setBackgroundColor(Color.TRANSPARENT);
mLayout.addView(mView);
}
MyView class:
public class ResistorView extends View {
public ResistorView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}
public ResistorView(Context context){
super(context);
init();
}
private void init() {
mSymbol = new Path();
mPaint = new Paint();
mPaint.setAntiAlias(true);
mPaint.setStrokeWidth(2);
mPaint.setColor(-7829368);
mPaint.setStyle(Paint.Style.STROKE);
mSymbol.moveTo(0.0F, 0.0F);
mSymbol.lineTo(0.0F, 50.0F);
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawPath(mSymbol, mPaint);
}
I am new to Android and I am trying to add start and reset buttons with a custom surface view. I am able to draw canvas with a circle which is moving with touch.
Now my problem is that when I click the start button, the circle must take its initial position (10,10).
My activity class
public class OpenGlActivity extends Activity implements OnClickListener {
GameView GameView;
FrameLayout Frame;
LinearLayout canvas;
Button btnStart, btnReset;
TutorialThread GameThread;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set full screen view
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
GameView = new GameView(this);
btnStart = (Button) findViewById(R.id.btnStart);
btnStart.setOnClickListener(this);
btnReset = (Button) findViewById(R.id.btnReset);
btnReset.setOnClickListener(this);
GameView.setOnTouchListener(this);
}
public void onClick(View v) {
switch (v.getId()) {
case R.id.btnStart:
Log.i("openGl", "play called");
GameView.setState();
// drawView.invalidate();
break;
case R.id.btnReset:
// GameView.play=true;
// GameView.reset();
Log.i("openGl", "RESETcalled");
// drawView.invalidate();
break;
}
}
}
Custom surfaceview class and thread class
class GameView extends SurfaceView implements SurfaceHolder.Callback {
String TAG = "GameView";
private TutorialThread _thread;
Paint paint = new Paint();
Paint red = new Paint();
Paint black = new Paint();
int x = 20;
int y = 20;
public GameView(Context context) {
super(context);
// TODO Auto-generated constructor stub
getHolder().addCallback(this);
_thread = new TutorialThread(getHolder(), this);
// TODO Auto-generated constructor stub
paint.setColor(Color.WHITE);
paint.setAntiAlias(true);
red.setColor(Color.RED);
red.setAntiAlias(true);
black.setColor(Color.BLACK);
black.setAntiAlias(true);
setFocusable(true);
}
public GameView(Context context, AttributeSet attrs) {
super(context, attrs);
getHolder().addCallback(this);
_thread = new TutorialThread(getHolder(), this);
// TODO Auto-generated constructor stub
paint.setColor(Color.WHITE);
paint.setAntiAlias(true);
red.setColor(Color.RED);
red.setAntiAlias(true);
black.setColor(Color.BLACK);
black.setAntiAlias(true);
setFocusable(true);
}
#Override
public boolean onTouchEvent(MotionEvent event) {
x = (int) event.getX();
y = (int) event.getY();
return true;
}
public void setState() {
Log.i(TAG, "in setState");
_thread.play();
}
#Override
public void onDraw(Canvas canvas) {
canvas.drawColor(Color.BLACK);
canvas.drawCircle(x, y, 10, red);
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
_thread.setRunning(true);
_thread.start();
}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
// simply copied from sample application LunarLander:
// we have to tell thread to shut down & wait for it to finish, or else
// it might touch the Surface after we return and explode
boolean retry = true;
_thread.setRunning(false);
while (retry) {
try {
_thread.join();
retry = false;
} catch (InterruptedException e) {
// we will try it again and again...
}
}
}
}
class TutorialThread extends Thread {
String TAG = "TutorialThread";
private SurfaceHolder _surfaceHolder;
private GameView _panel;
private boolean _run = false;
public TutorialThread(SurfaceHolder surfaceHolder, GameView panel) {
_surfaceHolder = surfaceHolder;
_panel = panel;
}
public void setRunning(boolean run) {
_run = run;
}
#Override
public void run() {
Canvas c;
while (_run) {
c = null;
try {
c = _surfaceHolder.lockCanvas(null);
synchronized (_surfaceHolder) {
_panel.onDraw(c);
}
} finally {
// do this in a finally so that if an exception is thrown
// during the above, we don't leave the Surface in an
// inconsistent state
if (c != null) {
_surfaceHolder.unlockCanvasAndPost(c);
}
}
}
}
public void play() {
synchronized (_surfaceHolder) {
_panel.x = 10;
_panel.y = 10;
Log.i(TAG, "in Play");
}
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.example.opengl.GameView
android:id="#+id/gameView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<Button
android:id="#+id/btnStart"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start" />
<Button
android:id="#+id/btnReset"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Reset" />
</LinearLayout>
</FrameLayout>
i've got a big problem since a few days:
When I try to bind the surfaceview on the layout and my custom surfaceview, i get a ClassCastException from my custom surfaceview.
here is my code:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
waveform =(WaveFormView) findViewById(R.id.surfaceView1);
}
class WaveFormView extends SurfaceView implements SurfaceHolder.Callback {
public WaveFormView(Context context, AttributeSet attrs) {
super(context, attrs);
getHolder().addCallback(this);
_dthread = new DrawingThread(getHolder(), this);
setFocusable(true);
paintP.setStyle(Paint.Style.STROKE);
paintP.setStrokeWidth(1);
paintP.setColor(Color.WHITE);
paintT.setStyle(Paint.Style.STROKE);
paintT.setStrokeWidth(1);
paintT.setColor(Color.WHITE);
}
#Override
public void onDraw(Canvas canvas) {
canvas.drawColor(Color.BLACK);
for (int i=0;i<_athread.buffer.length-pas;i+=pas){
canvas.drawLine(i, 150-_athread.buffer[i], i+pas, 150-_athread.buffer[i+pas], paintP);
}
canvas.drawText("FPS: " + String.valueOf(FPS), 0, 10, paintT);
//canvas.drawText("tmp: " + tmp, 0, 20, paintT);
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
_dthread.setRunning(true);
_dthread.start();
}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
// simply copied from sample application LunarLander:
// we have to tell thread to shut down & wait for it to finish, or else
// it might touch the Surface after we return and explode
boolean retry = true;
_dthread.setRunning(false);
while (retry) {
try {
_dthread.join();
retry = false;
} catch (InterruptedException e) {
// we will try it again and again...
}
}
}
}
class DrawingThread extends Thread {
private SurfaceHolder _surfaceHolder;
private WaveFormView _waveformview;
private boolean _run = false;
public DrawingThread(SurfaceHolder surfaceHolder, WaveFormView waveformview) {
_surfaceHolder = surfaceHolder;
_waveformview = waveformview;
}
public void setRunning(boolean run) {
_run = run;
}
public SurfaceHolder getSurfaceHolder() {
return _surfaceHolder;
}
#Override
public void run() {
Canvas c;
long startMs=System.currentTimeMillis();
int frameCounter=0;
while (_run) {
c = null;
frameCounter++;
if (System.currentTimeMillis()-startMs>1000){
startMs = System.currentTimeMillis();
FPS = frameCounter;
frameCounter=0;
}
try {
c = _surfaceHolder.lockCanvas(null);
synchronized (_surfaceHolder) {
_waveformview.onDraw(c);
}
} finally {
// do this in a finally so that if an exception is thrown
// during the above, we don't leave the Surface in an
// inconsistent state
if (c != null) {
_surfaceHolder.unlockCanvasAndPost(c);
}
}
}
}
}
When I replace:
setContentView(R.layout.main);
with this:
setContentView(new WaveFormView (this));
...it works perfectly !
But, I need to have buttons besides.
here is the layout:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent">
<LinearLayout android:layout_weight="1" android:padding="0dip" android:layout_height="match_parent" android:layout_width="match_parent" android:orientation="vertical" android:id="#+id/content">
<TextView android:layout_height="wrap_content" android:id="#+id/tvdebug" android:text="Debug" android:layout_width="wrap_content"></TextView>
<SurfaceView android:id="#+id/surfaceView1" android:layout_height="fill_parent" android:layout_width="fill_parent"></SurfaceView>
</LinearLayout>
If someone have the solution it would me a lot !
Maybe R.id.surfaceView1 is not declared as WaveFormView but as SurfaceView? Try declare it specifically, otherwise this is illegal casting indeed.
WaveFormView is a SurfaceView, but a SurfaceView is not necessarily a WaveFormView.
You can use your own view in the layout xml, by specifying the class name (<path.to.WaveFormView instead of <SurfaceView...)
For example:
<view class = "com.mypath.WaveFormView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/surfaceView1"
android:layout_above="#id/auto_scrollview"
/>
OR
<com.mypath.WaveFormView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="#+id/surfaceView1"
android:layout_above="#id/auto_scrollview"
/>
If this class is an inner class, as seemed from your question, then use:
<com.mypath.OUTERCLASSNAME$WaveFormView
EDIT
Since this class is needed to be shown from outside your class, and be loaded not from instance but statically, you need to public static to its declaration, e.g.:
public static class WaveFormView extends SurfaceView implements SurfaceHolder.Callback
Here is my main:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
LinearLayout layout = (LinearLayout) findViewById(R.id.mainView);
TextView text= (TextView) findViewById(R.id.text);
text.setText("This is a Test!");
firstCircle first = new firstCircle(this);
secondCircle second = new secondCircle(this);
layout.addView(first);
layout.addView(second);
}
Here is my firstCircleClass:
public class firstCircle extends SurfaceView implements SurfaceHolder.Callback {
private firstThread _firstThread;
private secondThread _secondThread;
private SurfaceHolder surfaceHolder;
public firstCircle (Context context, AttributeSet attrs){
super(context,attrs);
getHolder().addCallback(this);
setFocusable(true);
_firstThread= new firstThread(getHolder(),this);
}
public firstCircle (Context context){
super(context);
getHolder().addCallback(this);
setFocusable(true);
_firstThread= new firstThread(getHolder(),this);
}
#Override
public void onDraw(Canvas c){
String tag="My Activity";
Paint paint = new Paint();
paint.setColor(Color.BLUE);
c.drawCircle(100,100,100,paint);
}
#Override
public void surfaceCreated(SurfaceHolder holder){
_firstThread.setRunning(true);
_firstThread.start();
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height){
}
#Override
public void surfaceDestroyed(SurfaceHolder holder){
boolean retry = true;
_firstThread.setRunning(false);
while (retry){
try{
_firstThread.join();
retry = false;
}catch (InterruptedException e){
e.printStackTrace();
}
}
}
}
I have a secondCircle class that is the exact same as above with the name changed and the color of the circle being Red.
Here is my firstThread class:
public class firstThread extends Thread {
private SurfaceHolder _surfaceHolder;
private firstClass _firstClass;
private boolean _run = false;
public firstThread (SurfaceHolder surfaceHolder, firstClass first){
_surfaceHolder = surfaceHolder;
_firstClass= first;
}
public void setRunning (boolean run){
_run = run;
}
#Override
public void run(){
while(_run){
Canvas c=null;
try{
c = _surfaceHolder.lockCanvas(null);
synchronized(_surfaceHolder){
_firstThread.onDraw(c);
}
} finally {
}
if (c!=null){
_surfaceHolder.unlockCanvasAndPost(c);
}
}
}
}
I have a secondThread class that is the same as above with a different name and that calls secondCircle's onDraw().
When i run this program it only shows the blue circle and not the red circle. Why is this?
when you add the views, add them with layout parameters. Its possible the 1st view is filling the parent, leaving no space for the second view.
you could do something like
LinearLayout.LayoutParams p = new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
layout.addView(first,p);
layout.addView(second,p);