I am trying to make a simple 2D Android game. In this, game I'm trying to make some buttons to control the character, while the character is shown in a SurfaceView. Currently, the SurfaceView is rendering only a black screen.
This is my MainActivity, which extends Activity:
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
GameView gm = (GameView)findViewById(R.id.snake_surface);
setContentView(R.layout.activity_main);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.layout.main, menu);
return true;
}
The GameView class, which extends SurfaceView:
private HeroSprite hero;
public GameView(Context context, AttributeSet attributeSet) {
super(context, attributeSet);
gameLoopThread = new GameLoopThread(this);
getHolder().addCallback(new SurfaceHolder.Callback() {
public void surfaceDestroyed(SurfaceHolder holder) {
boolean retry = true;
gameLoopThread.setRunning(false);
while (retry) {
try {
gameLoopThread.join();
retry = false;
} catch (InterruptedException e) {}
}
}
public void surfaceCreated(SurfaceHolder holder) {
createSprites();
createHero();
gameLoopThread.setRunning(true);
gameLoopThread.start();
}
public void surfaceChanged(SurfaceHolder holder, int format,int width, int height) {
}
});
bmpBlood = BitmapFactory.decodeResource(context.getResources(), R.drawable.blood1);
}
private void createHero(){
hero=(createHeroSprite(R.drawable.aslan));
}
private HeroSprite createHeroSprite(int resouce) {
Bitmap bmp = BitmapFactory.decodeResource(getResources(), resouce);
return new HeroSprite(this, bmp);
}
private void createSprites() {
sprites.add(createSprite(R.drawable.tavsan));
sprites.add(createSprite(R.drawable.fare));
sprites.add(createSprite(R.drawable.sansar));
sprites.add(createSprite(R.drawable.tavsan));
sprites.add(createSprite(R.drawable.fare));
sprites.add(createSprite(R.drawable.sansar));
sprites.add(createSprite(R.drawable.tavsan));
sprites.add(createSprite(R.drawable.fare));
sprites.add(createSprite(R.drawable.sansar));
sprites.add(createSprite(R.drawable.tavsan));
sprites.add(createSprite(R.drawable.tavsan));
}
private Sprite createSprite(int resouce) {
Bitmap bmp = BitmapFactory.decodeResource(getResources(), resouce);
return new Sprite(this, bmp);
}
#Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.GREEN);
for (int i = temps.size() - 1; i >= 0; i--) {
temps.get(i).onDraw(canvas);
}
for (Sprite sprite : sprites) {
sprite.onDraw(canvas);
}
hero.onDraw(canvas);
}
#Override
public boolean onTouchEvent(MotionEvent event) {
if (System.currentTimeMillis() - lastClick > 300) {
lastClick = System.currentTimeMillis();
float x = event.getX();
float y = event.getY();
synchronized (getHolder()) {
for (int i = sprites.size() - 1; i >= 0; i--) {
Sprite sprite = sprites.get(i);
if ((sprite).isCollition(x, y)) {
sprites.remove(sprite);
temps.add(new TempSprite(temps, this, x, y, bmpBlood));
break;
}
}
}
}
return true;
}
My GameLoopThread class, which extends Thread
static final long FPS = 10;
private GameView view;
private boolean running = false;
public GameLoopThread(GameView view) {
this.view = view;
}
public void setRunning(boolean run) {
running = run;
}
#Override
public void run() {
long ticksPS = 1000 / FPS;
long startTime;
long sleepTime;
while (running) {
Canvas c = null;
startTime = System.currentTimeMillis();
try {
c = view.getHolder().lockCanvas();
synchronized (view.getHolder()) {
view.onDraw(c);
}
} finally {
if (c != null) {
view.getHolder().unlockCanvasAndPost(c);
}
}
sleepTime = ticksPS - (System.currentTimeMillis() - startTime);
try {
if (sleepTime > 0)
sleep(sleepTime);
else
sleep(10);
} catch (Exception e) {
}
}
}
Here is my layout:
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="30dp"
android:gravity="center"
android:orientation="horizontal" >
<TextView
android:id="#+id/score"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:text="Score:"
android:textSize="20dp" />
<Button
android:id="#+id/btnThread"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal" />
<TextView
android:id="#+id/max"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical|center_horizontal"
android:layout_marginLeft="100dp"
android:text="Max:"
android:textSize="20dp" />
</LinearLayout>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="0.3" >
<SurfaceView
android:id="#+id/snake_surface"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.3" />
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:weightSum="1" >
<Button
android:id="#+id/butUp"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center"
android:text="UP" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<Button
android:id="#+id/butLeft"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:text="LEFT" />
<Button
android:id="#+id/butRight"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:text="RIGHT" />
</RelativeLayout>
<Button
android:id="#+id/butDown"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal|center"
android:text="DOWN" />
</LinearLayout>
</LinearLayout>
</LinearLayout>
Your view in the layout is a SurfaceView, not a GameView. You need to change that:
<your.package.name.GameView
android:id="#+id/snake_surface"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_weight="0.3" />
And replace your.package.name with the actual name of the package containing GameView.
Also, the line GameView gm = ... needs to go after setContentView.
And lastly, don't forget to call gm.invalidate() when you've modified the items that will be drawn!
Related
This question already has answers here:
What is a NullPointerException, and how do I fix it?
(12 answers)
Closed 1 year ago.
My English is not so good, but I will try..
I am having a problem with my android app (obesity measurement app).
In AVD (android virtual device), my app works well.
But, on my smartphone (Galaxy S7) my app causes an error.
Error massage is
" BMI calcu keeps stopping " .
('BMI calcu' is the name of App.)
What should I do?
Please give me a hand...
<<<< Layout file >>>>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="comp.whcomp.whteam.bmicalcu.MainActivity"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center"
android:text="BMI calculator"
android:textSize="20sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="4"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="#+id/textView2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="height : " />
<EditText
android:id="#+id/heightEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="number|numberDecimal"
android:maxLength="5" />
<TextView
android:id="#+id/textView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="cm" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="#+id/textView3"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="weight : " />
<EditText
android:id="#+id/weightEditText"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="number|numberDecimal"
android:maxLength="5" />
<TextView
android:id="#+id/textView4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="kg" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:orientation="horizontal">
<TextView
android:id="#+id/textView5"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="BMI : " />
<TextView
android:id="#+id/bmiTextView"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:ems="10"
android:inputType="textPersonName" />
<TextView
android:id="#+id/textView6"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
</LinearLayout>
<comp.whcomp.whteam.bmicalcu.BmiView
android:id="#+id/BmiView2"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="5" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="6"
android:orientation="horizontal"></LinearLayout>
</LinearLayout>
Main code is as following:
MainActivity.java
public class MainActivity extends Activity {
EditText mWeightEditText;
EditText mHeightEditText;
TextView mBmiTextView;
float floatWeight;
float floatHeight;
static float floatBmi = 0f;
String strBmi;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
mWeightEditText = (EditText)findViewById(R.id.weightEditText);
mHeightEditText = (EditText)findViewById(R.id.heightEditText);
mBmiTextView = (TextView)findViewById(R.id.bmiTextView);
mWeightEditText.addTextChangedListener(mWatcher);
mHeightEditText.addTextChangedListener(mWatcher);
} // end of onCreate()
TextWatcher mWatcher = new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence charSequence,int i,int i1,int i2){}
#Override
public void onTextChanged(CharSequence charSequence, int i, int i1, int i2){
if((mWeightEditText.getText().toString().length()>0) &&
(mHeightEditText.getText().toString().length()>0)) {
if(mHeightEditText.getText().toString().equals("0")){
} else {
floatWeight=Float.parseFloat(mWeightEditText.getText().toString());
floatHeight=Float.parseFloat(mHeightEditText.getText().toString());
floatBmi=(floatWeight/(floatHeight/100f)) / (floatHeight/100f);
strBmi = String.format("%.1f", floatBmi);
mBmiTextView.setText(strBmi);
}
} else {
mBmiTextView.setText("");
floatBmi = 0f;
}
} // end of onTextchange()
#Override
public void afterTextChanged(Editable editable) {}
}; // end of TextWatcher
}
BmiView.java
public class BmiView extends SurfaceView implements SurfaceHolder.Callback {
Context mContext;
private BmiThread mThread;
int screenWidth;
int screenHeight;
int radius;
int xOfCenterOfCircle;
int yOfCenterOfCircle;
int tOfRectOfArc;
int bOfRectOfArc;
int lOfRectOfArc;
int rOfRectOfArc;
int xOfNeedleEnd = 0;
int yOfNeedleEnd = 0;
int intBmi;
RectF rect;
private Paint mPaintGreen;
private Paint mPaintBlack;
private Paint mPaintNeedle;
// constructor
public BmiView(Context context, AttributeSet attrs) {
super(context, attrs);
getHolder().addCallback(this);
mContext = context;
mPaintGreen = new Paint();
mPaintBlack = new Paint();
mPaintNeedle = new Paint();
}
#Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
screenWidth = w;
screenHeight = h;
if ( h > w/2 ) {
radius = w*4/10;
} else {
radius = h*4/5;
}
xOfCenterOfCircle = w/2;
yOfCenterOfCircle = h*4/5;
tOfRectOfArc = yOfCenterOfCircle - radius;
bOfRectOfArc = yOfCenterOfCircle + radius;
lOfRectOfArc = xOfCenterOfCircle - radius;
rOfRectOfArc = xOfCenterOfCircle + radius;
mPaintGreen.setColor(Color.GREEN);
mPaintBlack.setColor(Color.BLACK);
mPaintNeedle.setColor(Color.RED);
mPaintNeedle.setStrokeWidth(10);
rect = new RectF();
}
#Override
public void surfaceCreated(SurfaceHolder surfaceHolder) {
mThread = new BmiThread(surfaceHolder);
mThread.setRunning(true);
mThread.start();
}
#Override
public void surfaceChanged(SurfaceHolder surfaceHolder,int i,int i1,int i2){}
#Override
public void surfaceDestroyed(SurfaceHolder surfaceHolder) {
boolean retry = true;
mThread.setRunning(false); // terminate mThread
while (retry) {
try {
mThread.join(); // wait for mThread to finish
retry = false;
}
catch (InterruptedException e) {}
}
}
class BmiThread extends Thread {
private SurfaceHolder surfaceHolder;
private boolean threadIsRunning = true; // running by default
public BmiThread(SurfaceHolder holder) {
surfaceHolder = holder;
}
public void setRunning (boolean running) {
threadIsRunning = running;
}
public void run() {
Canvas canvas = null;
while (threadIsRunning) {
try {
canvas = surfaceHolder.lockCanvas();
synchronized (surfaceHolder) {
canvas.drawColor(Color.WHITE);
rect.set(lOfRectOfArc, tOfRectOfArc, rOfRectOfArc, bOfRectOfArc);
canvas.drawArc(rect, 180, 180, false, mPaintGreen);
intBmi = (int)MainActivity.floatBmi;
if(intBmi > 40) {
intBmi = 40;
}
double deg = 180*(intBmi/40d), rad;
rad = Math.toRadians(deg);
xOfNeedleEnd = xOfCenterOfCircle - (int)(( Math.cos(rad) )*radius);
yOfNeedleEnd = yOfCenterOfCircle - (int)(( Math.sin(rad) )*radius);
canvas.drawLine(xOfCenterOfCircle, yOfCenterOfCircle, xOfNeedleEnd,
yOfNeedleEnd, mPaintNeedle);
canvas.drawCircle(xOfCenterOfCircle, yOfCenterOfCircle, 10,
mPaintBlack);
}
} finally {
if (canvas != null)
surfaceHolder.unlockCanvasAndPost(canvas);
}
} // end of while()
} // end of run()
} // end of thread.
}
<<<< Logcat message >>>>
08-02 16:00:18.127 3086-3213/comp.whcomp.whteam.bmicalcu E/AndroidRuntime: FATAL EXCEPTION: Thread-7
Process: comp.whcomp.whteam.bmicalcu, PID: 3086
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.graphics.Canvas.drawColor(int)' on a null object reference
at comp.whcomp.whteam.bmicalcu.BmiView$BmiThread.run(BmiView.java:123)
Check that you are creating an instance before trying to set the colour. It is complaining because the object you're trying to set the colour for doesn't exist at the time you're trying to set it.
Hmm. For the first glance, your code seems correct. Maybe is because your BmiView has a height of 0dp? - see the layout
I have a fullscreen activity that should look like this:
where the big white circle would have some text, I've already done it, but the problem is that I don't know how to do that dashed lines between the icons, also they want a little animation in the icons, so I assumed that each one should be a separate view, so far I've done this (it doesn't need to look exactly the same):
So, how could I draw that lines? Also if I could make that dashes to "run" acrross the lines would be awesome.
this is my xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/rlt_welcome"
android:layout_weight="9"
android:background="#drawable/bg"
>
<RelativeLayout
android:layout_width="0dp"
android:layout_weight="2"
android:orientation="vertical"
android:padding="10dp"
android:layout_height="match_parent">
<ImageView
android:layout_width="wrap_content"
android:id="#+id/img_youtube"
android:src="#drawable/youtube_circle"
android:layout_marginTop="60dp"
android:layout_marginRight="60dp"
android:layout_height="wrap_content"
/>
<ImageView
android:layout_width="wrap_content"
android:src="#drawable/tablet_circle"
android:layout_height="wrap_content"
android:layout_above="#+id/img_stats"
android:layout_marginRight="30dp"
android:layout_below="#+id/img_youtube"
/>
<ImageView
android:layout_width="wrap_content"
android:id="#+id/img_stats"
android:src="#drawable/stats_circle"
android:layout_height="wrap_content"
android:layout_marginRight="70dp"
android:layout_marginBottom="20dp"
android:layout_alignParentBottom="true"/>
<ImageView
android:id="#+id/img_iphone"
android:layout_width="wrap_content"
android:src="#drawable/iphone_circle"
android:layout_height="wrap_content"
android:layout_marginLeft="60dp"
/>
<ImageView
android:layout_width="wrap_content"
android:src="#drawable/imac_circle"
android:layout_height="wrap_content"
android:layout_below="#+id/img_iphone"
android:layout_marginLeft="70dp"
android:layout_marginTop="-30dp"
/>
<ImageView
android:layout_width="wrap_content"
android:src="#drawable/webcam_circle"
android:layout_height="wrap_content"
android:layout_marginLeft="60dp"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_weight="5"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center_vertical"
android:padding="40dp"
android:textSize="25sp"
android:textColor="#color/text1"
android:layout_margin="20dp"
android:text="Bienvenido"
android:background="#drawable/flat_circle"
android:id="#+id/txt_welcome"
android:layout_centerInParent="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="0dp"
android:layout_weight="2"
android:layout_height="match_parent"
>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/arrow_circle"
android:id="#+id/img_arrow"
android:layout_alignParentTop="true"
android:layout_marginRight="60dp"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/news_circle"
android:layout_below="#+id/img_arrow"
android:layout_marginTop="-90dp"
android:layout_marginRight="2dp"
android:layout_marginLeft="70dp"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/line_circle"
android:id="#+id/img_line"
android:layout_below="#+id/img_arrow"
android:layout_marginTop="-10dp"
android:layout_marginRight="70dp"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/money_circle"
android:layout_below="#+id/img_line"
android:layout_marginRight="6dp"
android:layout_marginTop="-70dp"
android:layout_marginLeft="70dp"
/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/mouse_circle"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:layout_marginRight="80dp"
/>
</RelativeLayout>
</LinearLayout>
Please check this, may be this will help you
http://www.rengelbert.com/tutorial.php?id=182
How do I get this work, I made a new activity that holds a Canvas controller, and place the bitmaps on the canvas and draw the lines between them with this, I didn't use any external library:
Hope someone could reuse some code and not only been told to google it.
MainActivty.java
#Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
relativeMainActivity = (RelativeLayout) findViewById(R.id.rlt_main);
DisplayMetrics dm = new DisplayMetrics();
this.getWindowManager().getDefaultDisplay().getMetrics(dm);
final int heightS = dm.heightPixels;
final int widthS = dm.widthPixels;
Log.d("MainActvitiy", "widht:" + widthS);
myPanel = new Panel(getApplicationContext(),this,widthS, heightS);
relativeMainActivity.addView(myPanel);
RelativeLayout RR = new RelativeLayout(this);
RR.setGravity(Gravity.CENTER);
relativeMainActivity.addView(RR,400,150);
RR.setX(0);
LayoutInflater myInflater = (LayoutInflater) getApplicationContext().getSystemService(getApplicationContext().LAYOUT_INFLATER_SERVICE);
}
Panel.java
public class Panel extends SurfaceView implements SurfaceHolder.Callback {
public MainThread thread;
private Background background;
private CircleManager CM;
public int ScreenWidth;
public int Screenheigt;
private CircleIcon icon1;
private CircleIcon icon2;
private CircleIcon icon3;
//and so on
public MainActivity myMain;
public Panel(Context context, MainActivity _main, int width , int height) {
super(context);
getHolder().addCallback(this);
this.myMain = _main;
this.ScreenWidth=width;
this.Screenheigt=height;
thread = new MainThread(getHolder(),this);
background = new Background(BitmapFactory.decodeResource(getResources(), R.drawable.bg), Screenheigt, this);
CM = new CircleManager( this,context,ScreenWidth);
CM.setScreen(ScreenWidth, Screenheigt);
SetIcons();
CM.setManager();
setFocusable(true);
}
void SetIcons()
{
icon1 = new CircleIcon(BitmapFactory.decodeResource(getResources(),R.drawable.circle_iphone),39,40);
icon2 = new CircleIcon(BitmapFactory.decodeResource(getResources(),R.drawable.circle_chat),280,40);
icon3 = new CircleIcon(BitmapFactory.decodeResource(getResources(),R.drawable.circle_youtube),60,200);
//and so on
icon1.myConnections.add(2);
icon1.myConnections.add(3);
icon2.myConnections.add(15);
icon3.myConnections.add(4);
icon3.myConnections.add(5);
//and so on
CM.iconsList.add(icon1);
CM.iconsList.add(icon2);
CM.iconsList.add(icon3);
//and so on
}
void Draw(Canvas canvas){
if (canvas!=null)
{
background.draw(canvas);
CM.draw(canvas);
iconEvent.draw(canvas);
}
}
void Update(float dt)
{
CM.Update(dt);
}
#Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,int height) {
}
#Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub
thread.setRunning(true);
thread.start();
}
#Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
boolean retry = true;
while (retry)
{
try
{
thread.join();
retry=false;
}
catch (InterruptedException e)
{
}
}
}
}
Background.java
public class Background {
Bitmap BackBitmap;
int x,y;
int ScreenHeight;
Panel root_panel;
public Background(Bitmap bitmap , int Screen_h, Panel _panel) {
this.BackBitmap = bitmap;
this.x=0;
this.y=0;
this.ScreenHeight=Screen_h;
root_panel =_panel;
}
public void draw(Canvas canvas)
{
canvas.drawBitmap(BackBitmap,x,y, null);
}
}
CircleIcon.java
public class CircleIcon {
private Bitmap bitmap;
private int x;
private int y;
CircleManager circManager;
ArrayList<Integer> myConnections;
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y=y;
}
public CircleIcon(Bitmap icon, int x, int y) {
bitmap=icon;
this.x=x;
this.y=y;
myConnections = new ArrayList<>();
}
public ArrayList<Integer> getMyConnections() {
return myConnections;
}
public void setMyConnections(ArrayList<Integer> myConnections) {
this.myConnections = myConnections;
}
public void setManager(CircleManager icManager) {
circManager = icManager;
}
public Bitmap getBitmap()
{
return bitmap;
}
public void setBitmap(Bitmap bitmap) {
this.bitmap = bitmap;
}
public void draw(Canvas canvas) {
canvas.drawBitmap(bitmap, x, y, null);
}
public void update()
{
// x=+1; example
}
}
CircleManager.java
public class CircleManager {
Bitmap icons;
int screenWidth;
int hour;
int min;
Context myContext;
int ScreenWidht;
public Panel myPanel;
public ArrayList<CircleIcon> iconsList;
public CircleManager(Panel _Panel, Context context,int screenW) {
this.myPanel = _Panel;
this.screenWidth = screenW;
this.myContext = context;
iconsList = new ArrayList<CircleIcon>();
}
public void setScreen(int screenWidth, int screenHeight)
{
this.ScreenWidht=screenWidth;
}
public void draw(Canvas canvas)
{
drawLines(canvas);
for(CircleIcon myIcon: iconsList)
{
myIcon.draw(canvas);
}
}
public void Update(float dt)
{
//some animation updates
}
public void drawLines(Canvas canvas)
{
Paint mPaint = new Paint();
mPaint.setColor(Color.WHITE);
mPaint.setStyle(Paint.Style.STROKE);
mPaint.setStrokeWidth(2);
mPaint.setPathEffect(new DashPathEffect(new float[]{7, 5}, 0));
for (CircleIcon myIcon: iconsList)
{
for( int connectedIcon: myIcon.getMyConnections())
{
Path mPath;
mPath = new Path();
mPath.moveTo(myIcon.getX()+myIcon.getBitmap().getWidth()/2, myIcon.getY()+myIcon.getBitmap().getHeight()/2);
mPath.lineTo(iconsList.get(connectedIcon-1).getX()+myIcon.getBitmap().getWidth()/2, iconsList.get(connectedIcon-1).getY()+myIcon.getBitmap().getHeight()/2);
canvas.drawPath(mPath, mPaint);
}
}
}
public void setManager()
{
for(CircleIcon myIcon: iconsList)
{
myIcon.setManager(this);
}
}
}
i am working on a flipper image and in this app image is taking from xml file, i want to take image from R.drawable recourse folder and also in this app has to button "Play" and "Pause" that are working from xml, is there any way to make this slide show from resource folder? Any help will be appreciated.
My java code:
Public class MainActivity extends Activity {
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private ViewFlipper mViewFlipper;
private AnimationListener mAnimationListener;
private Context mContext;
#SuppressWarnings("deprecation")
private final GestureDetector detector = new GestureDetector(new SwipeGestureDetector());
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = this;
mViewFlipper = (ViewFlipper) this.findViewById(R.id.view_flipper);
mViewFlipper.setOnTouchListener(new OnTouchListener() {
#Override
public boolean onTouch(final View view, final MotionEvent event) {
detector.onTouchEvent(event);
return true;
}
findViewById(R.id.play).setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
//sets auto flipping
mViewFlipper.setAutoStart(true);
mViewFlipper.setFlipInterval(4000);
mViewFlipper.startFlipping();
}
});
findViewById(R.id.stop).setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
//stop auto flipping
mViewFlipper.stopFlipping();
}
});
//animation listener
mAnimationListener = new Animation.AnimationListener() {
public void onAnimationStart(Animation animation) {
//animation started event
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationEnd(Animation animation) {
//TODO animation stopped event
}
};
}
class SwipeGestureDetector extends SimpleOnGestureListener {
#Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
try {
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
mViewFlipper.setInAnimation(AnimationUtils.loadAnimation(mContext, R.anim.left_in));
mViewFlipper.setOutAnimation(AnimationUtils.loadAnimation(mContext, R.anim.left_out));
// controlling animation
mViewFlipper.getInAnimation().setAnimationListener(mAnimationListener);
mViewFlipper.showNext();
return true;
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
mViewFlipper.setInAnimation(AnimationUtils.loadAnimation(mContext, R.anim.right_in));
mViewFlipper.setOutAnimation(AnimationUtils.loadAnimation(mContext,R.anim.right_out));
// controlling animation
mViewFlipper.getInAnimation().setAnimationListener(mAnimationListener);
mViewFlipper.showPrevious();
return true;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}
}
My XML:
<?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:orientation="vertical" >
<ViewFlipper
android:id="#+id/view_flipper"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="#drawable/p1" />
<TextView
android:id="#+id/textView1"
style="#style/ImageTitle"
android:text="#string/text1" />
</RelativeLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="#drawable/p2" />
<TextView
style="#style/ImageTitle"
android:text="#string/text2" />
</RelativeLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ImageView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="center"
android:adjustViewBounds="true"
android:scaleType="centerCrop"
android:src="#drawable/p3" />
<TextView
style="#style/ImageTitle"
android:text="#string/text3" />
</RelativeLayout>
</ViewFlipper>
<LinearLayout
style="#style/ButtonContainer"
android:orientation="horizontal" >
<Button
android:id="#+id/play"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="10dp"
android:background="#android:drawable/ic_media_play" />
<Button
android:id="#+id/stop"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#android:drawable/ic_media_pause" />
</LinearLayout>
<ImageView
android:id="#+id/swipe_left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:src="#drawable/back" />
<ImageView
android:id="#+id/swipe_right"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="#drawable/next" />
</RelativeLayout>
i think i could do something like this:
public class Level1ScreenView extends SurfaceView implements Runnable {
SurfaceHolder holder;
Bitmap flipper2;
Paint paint = new Paint();
public Level1ScreenView(Context context){
super(context);
flipper2= BitmapFactory.decodeResource(getResources(),R.drawable.p2);
#SuppressLint("DrawAllocation")
protected void onDraw(Canvas canvas){
canvas.drawBitmap(flipper2, 0, 0, paint); // first 0 is x, second 0 is y
}
#SuppressLint("WrongCall")
public void run() {
while (ok == true){
//perform canvas drawing
if(!holder.getSurface().isValid()){//if surface is not valid
continue;//skip anything below it
}
Canvas c = holder.lockCanvas(); //Lock canvas, paint canvas, unlock canvas
this.onDraw(c);
holder.unlockCanvasAndPost(c);}
}}
by the way, programmatic or by xml, the images are coming from the same folder drawable.
I have this xml, with the layout surface(which doesnt cover the whole screen):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/FrameLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_gravity="bottom"
android:orientation="vertical" >
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="10dp"
android:orientation="vertical" >
</LinearLayout>
<LinearLayout
android:id="#+id/surface"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:layout_weight="1" >
</LinearLayout>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_gravity="bottom" >
<ImageView
android:id="#+id/right"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignTop="#+id/down"
android:layout_toRightOf="#+id/down"
android:src="#drawable/right" />
<ImageView
android:id="#+id/left"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignTop="#+id/down"
android:layout_toLeftOf="#+id/down"
android:src="#drawable/left" />
<ImageView
android:id="#+id/up"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_alignParentTop="true"
android:layout_toLeftOf="#+id/right"
android:src="#drawable/up" />
<ImageView
android:id="#+id/down"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_below="#+id/up"
android:layout_centerHorizontal="true"
android:src="#drawable/down" />
</RelativeLayout>
</LinearLayout>
I took control of surface in the mainActivity and tried to draw a on it's borders a frame with width of 10px.
here the the mainActivity:
public class MainActivity extends Activity {
GameView gv;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.game_view);
LinearLayout surface = new LinearLayout(this);
surface = (LinearLayout)findViewById(R.id.surface);
gv= new GameView(this,surface);
surface.addView(gv);
}
}
here is the GameView class:
public class GameView extends SurfaceView implements Runnable {
private boolean isRunning=false;
private final long FPS=12;
int PART_SIZE=6;
private SurfaceHolder holder;
Thread snakethread;
LinearLayout view;
public GameView(Context context,LinearLayout view) {
super(context);
this.view=view;
this.a=new Arena();
snakethread=new Thread(this);
holder= getHolder();
this.setBackgroundColor(Color.TRANSPARENT);
this.setZOrderOnTop(true);
getHolder().setFormat(PixelFormat.TRANSPARENT);
holder.addCallback(new SurfaceHolder.Callback(){
#Override
public void surfaceCreated(SurfaceHolder arg0) {
setRunning(true);
snakethread.start();
}
#Override
public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2,int arg3) {
}
#Override
public void surfaceDestroyed(SurfaceHolder arg0) {
setRunning(false);
while(true){
try {
snakethread.join();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
}
public void run() {
long stepPerSecond=1000/FPS;
long startTime;
long sleepTime;
Canvas c = null;
try{
c=this.getHolder().lockCanvas();
synchronized (this.getHolder()) {
c.drawColor(Color.BLUE);
Paint p=new Paint();
p.setColor(Color.BLACK);
c.drawRect(view.getLeft(), view.getTop(), view.getLeft()+10, view.getBottom(),p);
c.drawRect(view.getLeft(), view.getTop(),view.getRight(),view.getTop()+10,p);
c.drawRect(view.getRight()-10, view.getTop(), view.getRight(),view.getBottom(),p);
c.drawRect(view.getLeft(), view.getBottom()-10, view.getRight(),view.getBottom(),p);
}
}
catch(Exception e){
}
finally{
if(c!=null){
this.getHolder().unlockCanvasAndPost(c);
}
}
}
The problem is that the whole frame is approximately 6px under the view's Top,under where is should be. i mean that the view.getTop() and view.getBottom() return a worng result, a result that is bigger in approximately 6px then what it should be (if the view's top coordinate is x, then it return x+6).
After Spend 2 Days I found the solution
int top = view.getTop();
int bottom = view.getBottom();
// use these line instead of upper code
int statusBarHeight = (int) Math.ceil(25 * context.getResources().getDisplayMetrics().density);
int top = (childTextView.getBottom()+childTextView.getHeight())-statusBarHeight ;
int bottom = (childTextView.getTop()+childTextView.getHeight())-statusBarHeight ;
I am trying to make something like customised quick badge with some buttons on it. I have successfully desgined it but when i am clicking on those buttons it does nothing. Can someone tell me where am i going wrong.
demo_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/likemenu"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="30dp"
android:text="Button" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1" >
</TextView>
<Button
android:id="#+id/likequickaction"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="30dp"
android:text="Button" />
</LinearLayout>
popup_grid_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<FrameLayout
android:id="#+id/header2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10.0dip"
android:background="#drawable/quickaction_top_frame" />
<ImageView
android:id="#+id/arrow_up"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:src="#drawable/quickaction_arrow_up" />
<HorizontalScrollView
android:id="#+id/scroll"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/header2"
android:background="#drawable/quickaction_slider_background"
android:fadingEdgeLength="0.0dip"
android:paddingLeft="1.0dip"
android:scrollbars="none" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:background="#drawable/quickaction_slider_grip_left" />
<include
android:layout_width="fill_parent"
android:layout_height="wrap_content"
layout="#layout/api_buttons" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:background="#drawable/quickaction_slider_grip_right" />
</LinearLayout>
</HorizontalScrollView>
<FrameLayout
android:id="#+id/footer"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/scroll"
android:background="#drawable/quickaction_bottom_frame" />
</RelativeLayout>
api_buttons.xml
<?xml version="1.0" encoding="utf-8"?>
<HorizontalScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/horizontalScrollView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/quickaction_slider_background" >
<TableRow
android:layout_width="wrap_content"
android:layout_height="wrap_content" >
<Button
android:id="#+id/one"
android:layout_height="wrap_content"
android:layout_weight="1"
android:minHeight="80dp"
android:minWidth="80dp"
android:text="One" />
<Button
android:id="#+id/two"
android:layout_height="wrap_content"
android:layout_weight="1"
android:minHeight="80dp"
android:minWidth="80dp"
android:text="Two" />
<Button
android:id="#+id/three"
android:layout_height="wrap_content"
android:layout_weight="1"
android:minHeight="80dp"
android:minWidth="80dp"
android:text="Three" />
<Button
android:id="#+id/four"
android:layout_height="wrap_content"
android:layout_weight="1"
android:minHeight="80dp"
android:minWidth="80dp"
android:text="Four" />
<Button
android:id="#+id/five"
android:layout_height="wrap_content"
android:layout_weight="1"
android:minHeight="80dp"
android:minWidth="80dp"
android:text="Five" />
<Button
android:id="#+id/six"
android:layout_height="wrap_content"
android:layout_weight="1"
android:minHeight="80dp"
android:minWidth="80dp"
android:text="Six" />
</TableRow>
</HorizontalScrollView>
BetterPopupWindow.java
public class BetterPopupWindow {
protected final View anchor;
private final PopupWindow window;
private View root;
private Drawable background = null;
private final WindowManager windowManager;
public BetterPopupWindow(View anchor) {
this.anchor = anchor;
this.window = new PopupWindow(anchor.getContext());
// when a touch even happens outside of the window
// make the window go away
this.window.setTouchInterceptor(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_OUTSIDE) {
BetterPopupWindow.this.window.dismiss();
return true;
}
return false;
}
});
this.windowManager = (WindowManager) this.anchor.getContext()
.getSystemService(Context.WINDOW_SERVICE);
onCreate();
}
protected void onCreate() {
}
protected void onShow() {
}
private void preShow() {
if (this.root == null) {
throw new IllegalStateException(
"setContentView was not called with a view to display.");
}
onShow();
if (this.background == null) {
this.window.setBackgroundDrawable(new BitmapDrawable());
} else {
this.window.setBackgroundDrawable(this.background);
}
this.window.setWidth(WindowManager.LayoutParams.WRAP_CONTENT);
this.window.setHeight(WindowManager.LayoutParams.WRAP_CONTENT);
this.window.setTouchable(true);
this.window.setFocusable(true);
this.window.setOutsideTouchable(true);
this.window.setContentView(this.root);
}
public void setBackgroundDrawable(Drawable background) {
this.background = background;
}
public void setContentView(View root) {
this.root = root;
this.window.setContentView(root);
}
public void setContentView(int layoutResID) {
LayoutInflater inflator = (LayoutInflater) this.anchor.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.setContentView(inflator.inflate(layoutResID, null));
}
public void setOnDismissListener(PopupWindow.OnDismissListener listener) {
this.window.setOnDismissListener(listener);
}
public void showLikePopDownMenu() {
this.showLikePopDownMenu(0, 0);
}
public void showLikePopDownMenu(int xOffset, int yOffset) {
this.preShow();
this.window.setAnimationStyle(R.style.Animations_PopDownMenu);
this.window.showAsDropDown(this.anchor, xOffset, yOffset);
}
public void showLikeQuickAction() {
this.showLikeQuickAction(0, 0);
}
public void showLikeQuickAction(int xOffset, int yOffset) {
this.preShow();
this.window.setAnimationStyle(R.style.Animations_GrowFromBottom);
int[] location = new int[2];
this.anchor.getLocationOnScreen(location);
Rect anchorRect = new Rect(location[0], location[1], location[0]
+ this.anchor.getWidth(), location[1] + this.anchor.getHeight());
this.root.measure(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
int rootWidth = this.root.getMeasuredWidth();
int rootHeight = this.root.getMeasuredHeight();
int screenWidth = this.windowManager.getDefaultDisplay().getWidth();
int screenHeight = this.windowManager.getDefaultDisplay().getHeight();
int xPos = ((screenWidth - rootWidth) / 2) + xOffset;
int yPos = anchorRect.top - rootHeight + yOffset;
// display on bottom
if (rootHeight > anchorRect.top) {
yPos = anchorRect.bottom + yOffset;
this.window.setAnimationStyle(R.style.Animations_GrowFromTop);
}
this.window.showAtLocation(this.anchor, Gravity.NO_GRAVITY, xPos, yPos);
}
public void dismiss() {
this.window.dismiss();
}
}
LikeQuickActionDemo.java
public class LikeQuickActionsDemo extends Activity {
private Button likemenuButton;
private Button likequickactionButton;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.setContentView(R.layout.demo_layout);
this.likemenuButton = (Button) this.findViewById(R.id.likemenu);
this.likemenuButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
DemoPopupWindow dw = new DemoPopupWindow(v);
dw.showLikePopDownMenu();
}
});
this.likequickactionButton = (Button) this
.findViewById(R.id.likequickaction);
this.likequickactionButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
DemoPopupWindow dw = new DemoPopupWindow(v);
dw.showLikePopDownMenu(0, 200);
}
});
}
private static class DemoPopupWindow extends BetterPopupWindow implements
OnClickListener {
public DemoPopupWindow(View anchor) {
super(anchor);
}
protected void onCreate() {
// inflate layout
LayoutInflater inflater = (LayoutInflater) this.anchor.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ViewGroup root = (ViewGroup) inflater.inflate(
R.layout.popup_grid_layout, null);
// setup button events
for (int i = 0, icount = root.getChildCount(); i < icount; i++) {
View v = root.getChildAt(i);
if (v instanceof TableRow) {
TableRow row = (TableRow) v;
for (int j = 0, jcount = row.getChildCount(); j < jcount; j++) {
View item = row.getChildAt(j);
if (item instanceof Button) {
Button b = (Button) item;
b.setOnClickListener(this);
}
}
}
}
// set the inflated view as what we want to display
this.setContentView(root);
}
public void onClick(View v) {
// we'll just display a simple toast on a button click
Button b = (Button) v;
Toast.makeText(this.anchor.getContext(), b.getText(),
Toast.LENGTH_SHORT).show();
this.dismiss();
}
}
}
The problem is in DemoPopupWindow.onCreate method:
ViewGroup root = (ViewGroup) inflater.inflate(
R.layout.popup_grid_layout, null);
for (int i = 0, icount = root.getChildCount(); i < icount; i++) {
View v = root.getChildAt(i);
if (v instanceof TableRow) {
root will be RelativeLayout defined in popup_grid_layout.xml. Later you iterate through all its children and set onclick listeners only if child view is TableRow, which is never the case. I guess what you want there is to find horizontalScrollView1 view and do the same with its children instead, something like:
View horizontalScrollView1 = findViewById(R.id.horizontalScrollView1);
for (int i = 0, icount = horizontalScrollView1.getChildCount(); i < icount; i++) {
View v = horizontalScrollView1.getChildAt(i);
if (v instanceof TableRow) {
...