I have made an application in which I will be dynamically adding image and text to the application for this i am using
1.relative layout (main layout)
1.(a) linear layout ( a linear layout containing all the 1.(b) values)
1.(b) linear layout ( d layout which contains a image and a text) , each (1.(b)) layout contain one image and one text
now as I am running this app on set top box (with remote) with android, which is connected to smart tv,,,,, so i have to control my app with a remote control provided with the set top box.
so what I want is when the application loads , the focus will be on the first ((1.(b) linear layout)) i.e. on the first pair of image and text.
already done:- I have used requestFocus() but of no use
any help will be greatly appreciated thanks in advance cheers !!!!!!!
the code snippet is as follows:-
activity
LinearLayout lm = (LinearLayout) findViewById(R.id.linearMain1);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
75, 98);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
params.setMargins(0, 25, 0, 0);
RelativeLayout.LayoutParams paramrelative = new RelativeLayout.LayoutParams(
170, 158);
paramrelative.setMargins(2, 0, 0, 0);
RelativeLayout.LayoutParams p = new RelativeLayout.LayoutParams(180,
ViewGroup.LayoutParams.WRAP_CONTENT);
p.setMargins(2,0, 0, 0);
//Create four
for(int j= 0;j<=count-1;j++)
{
// Create LinearLayout
ScrollView sv = new ScrollView(this);
final RelativeLayout ll = new RelativeLayout(this);
ll.setBackgroundResource(R.drawable.app_bg);
ll.setLayoutParams(paramrelative);
ll.setFocusableInTouchMode(true);
ll.setClickable(true);
// final String url= separated[j+1];
// Create Button
final Button img = new Button(this);
final TextView tv = new TextView(this);
// Give button an ID
img.setId(j+1);
int s=img.getId();
p.addRule(RelativeLayout.BELOW, s);
tv.setLayoutParams(p);
tv.setGravity(Gravity.CENTER);
//File sdCardRoot = Environment.getExternalStorageDirectory();
// File sdcardPath = new File(Environment.getExternalStorageDirectory()
// .getPath() + "/CATEGORIES");
String filename=finalname[j];
File myDir = new File(sdcardPath,filename);
// File myDir = new File(sdcardPath, "CATEGORIES_hotelinfo.png");
String m1 = myDir.getPath();
Resources res = getResources();
Bitmap bitmap = BitmapFactory.decodeFile(m1);
BitmapDrawable bd = new BitmapDrawable(res, bitmap);
img.setBackgroundDrawable(Drawable.createFromPath(m1.toString()));
//2ndaugust2014 tv.setText(finalname[j]);
int s1= finalname[j].indexOf(".");
final String finalname1=finalname[j].substring(0,s1);
tv.setText(finalname1);
img.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
String newPath=newPath1+finalname1;
File sdcardPath = new File(Environment.getExternalStorageDirectory()
.getPath() +newPath);
new CountDownTimer(2000,1000) {
public void onTick(long millisUntilFinished) {
ll.setBackgroundResource(R.drawable.hover_btn_d); //This is when you click on each tick it came here after 1000 millisecond
}
public void onFinish() {
ll.setBackgroundResource(R.drawable.app_bg);
}
}.start();
// if the directory does not exist, create it
if (!sdcardPath.exists())
{
Toast.makeText(getApplicationContext(),
"redirecting to www."+finalname1+".com",
Toast.LENGTH_SHORT).show();
}
else
{ Intent intent = new Intent(Second60grid.this,Second60grid.class);
// startActivity(intent);
// i.setClassName(packageName, activitylast);
Toast.makeText(getApplicationContext(),
"name" + finalname1,
Toast.LENGTH_SHORT).show();
intent.putExtra("nameoffile",newPath+"/");
startActivity(intent);
}
}
});
// set the layoutParams on the button
img.setLayoutParams(params);
//Add button to LinearLayout
// setContentView(sv);
ll.addView(img);
ll.addView(tv);
if(j==0)
{
ll.requestFocus();
}
//Add button to LinearLayout defined in XML
lm.addView(ll);
}
and the xml file is as follows:-----
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/bg">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="200dip"
android:id="#+id/rl1"
>
<TextView
android:id="#+id/TEXT0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#FF0000"
android:text="CATEGORIES" />
<LinearLayout
android:id="#+id/linearMain1"
android:layout_below="#+id/TEXT0"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000">
</LinearLayout>
<LinearLayout
android:id="#+id/linearMain2"
android:layout_below="#+id/linearMain1"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000">
</LinearLayout>
<LinearLayout
android:layout_below="#+id/linearMain2"
android:orientation="horizontal"
android:id="#+id/linearMain3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000"
>
</LinearLayout>
<LinearLayout
android:layout_below="#+id/linearMain3"
android:orientation="horizontal"
android:id="#+id/linearMain4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000"
> </LinearLayout>
<LinearLayout
android:layout_below="#+id/linearMain4"
android:orientation="horizontal"
android:id="#+id/linearMain5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#80000000"
>
</LinearLayout>
</RelativeLayout>
<RelativeLayout
android:layout_width="1400dp"
android:layout_height="70dp"
android:background="#80ffffff"
android:layout_alignParentBottom="true"
android:layout_below="#+id/rl1"
android:id="#+id/rl2"
>
<ImageView
android:id="#+id/remote_btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="#drawable/remote_btn"
android:layout_alignParentBottom="true" />
<TextView
android:id="#+id/TEXT1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="#+id/remote_btn2"
android:layout_toRightOf="#+id/remote_btn"
android:text="MOVE" />
<ImageView
android:id="#+id/remote_btn2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="42dp"
android:layout_toRightOf="#+id/TEXT1"
android:adjustViewBounds="true"
android:src="#drawable/remote_btn2" />
<TextView
android:id="#+id/TEXT2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/TEXT1"
android:layout_toRightOf="#+id/remote_btn2"
android:text="SELECT" />
</RelativeLayout>
<RelativeLayout
android:id="#+id/rl3"
android:layout_width="wrap_content"
android:layout_height="800dip"
android:background="#10ffffff"
android:layout_marginLeft="10dip"
android:layout_marginBottom = "10dp"
android:layout_above="#+id/rl2"
>
<Button
android:id="#+id/buttoniptv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="42dp"
android:text="iptv"
android:background="#FF0000"/>
<Button
android:id="#+id/buttontvchannels"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/buttoniptv"
android:background="#FF0000"
android:text="tvchannels" />
<Button
android:id="#+id/buttoninternet"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/buttontvchannels"
android:background="#FF0000"
android:text="internet" />
</RelativeLayout>
</RelativeLayout>
You are currently adding view in ascending order
parentView.addView(child, 0);
Add it in Descending Order:
parentView.addView(child, parentView.getChildCount() - 1);
Related
I have a relative layout in my XML file and it contains a button. Now I want that when I press this button, it creates 2 TextViews. Any help please because I am new to Android Studio? I have tried creating the onClickListener for the button but I am having problems in order to get an object of the current relative layout which I have in the XML.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_brush_your_teeth);
Intent i = getIntent();
final Button addAlertButton = (Button)findViewById(R.id.AddAlert);
addAlertButton.setOnClickListener(new Button.OnClickListener(){
public void onClick(View v){
}
});
}
The following is the XML:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="com.example.user.dentalapp.BrushYourTeeth"
tools:showIn="#layout/activity_main">
<!--ALERT 1-->
<TextView
android:id="#+id/Alert1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Alert 1"
android:textSize="25dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_marginTop="50dp"
android:layout_marginLeft="50dp"/>
<TextView
android:id="#+id/Time1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="08:00"
android:textSize="25dp"
android:onClick="showTimePickerDialog"
android:layout_above="#+id/Alert2"
android:layout_alignParentRight="true"
android:layout_marginRight="50dp"/>
<!--ALERT 2-->
<TextView
android:id="#+id/Alert2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Alert 2"
android:textSize="25dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:layout_below="#id/Alert1"
android:layout_marginTop="30dp"
android:layout_marginLeft="50dp"/>
<TextView
android:id="#+id/Time2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="21:00"
android:textSize="25dp"
android:layout_below="#id/Alert1"
android:layout_marginTop="30dp"
android:layout_alignParentRight="true"
android:layout_marginRight="50dp"/>
<!--ADD ALERT BUTTON-->
<Button
android:id="#+id/AddAlert"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Add Alert"
android:textAllCaps="false"
android:textSize="25dp"
android:padding="15dp"
android:layout_below="#id/Alert2"
android:layout_centerHorizontal="true"
android:layout_marginTop="200dp"/>
</RelativeLayout>
Thanks!!
This link may be useful for you:
displaying a string on the textview when clicking a button in android
It is for one string, you may add your second text view into method below:
private void printmyname(){
System.out.println("coming");
}
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_brush_your_teeth);
final Button addAlertButton = (Button) findViewById(R.id.AddAlert);
addAlertButton.setOnClickListener(new Button.OnClickListener() {
public void onClick(View v) {
RelativeLayout layout = (RelativeLayout) findViewById(R.id.layout);
int prevTextViewId = 0;
final TextView textView1 = new TextView(this);
final TextView textView2 = new TextView(this);
textView1.setText("Text 1");
textView2.setText("Text 2");
int curTextViewId = v.getId();
textView1.setId(curTextViewId+1);
textView2.setId(curTextViewId+2);
final RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.BELOW, v.getId()+1);
textView1.setLayoutParams(params);
params.addRule(RelativeLayout.BELOW, v.getId()+2);
textView2.setLayoutParams(params);
layout.addView(textView1, params);
layout.addView(textView2, params);
}
});
}
Not sure but something like this helps you
I am trying to programatically create a multiple RelativeLayouts inside a ViewFlipper.
I'm doing this in order to build a dynamic ViewFlipper that holds N number of images, N changes.
I am trying to create something like that: (that works BTW..)
<?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/lightning" />
<TextView
style="#style/ImageTitle"
android:text="#string/lightning" />
</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/color_baloons" />
<TextView
style="#style/ImageTitle"
android:text="#string/color_baloons" />
</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/natural_wall" />
<TextView
style="#style/ImageTitle"
android:text="#string/natural_wall" />
</RelativeLayout>
</ViewFlipper>
<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/swipe_left" />
<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/swipe_right" />
</RelativeLayout>
This is my code:
Problem: I don't see the images
What am I missing?
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.single_image_layout);
_context = this;
_viewFlipper = (ViewFlipper) this.findViewById(R.id.view_flipper);
Intent intent = getIntent();
_imageUrls = intent.getStringArrayExtra("theImageUrl");
for (int i = 0; i < _imageUrls.length; i++) {
RelativeLayout layout = new RelativeLayout(_context);
RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
layout.setLayoutParams(layoutParams);
ImageView imageView = new ImageView(_context);
LayoutParams imageParams = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
imageView.setLayoutParams(imageParams);
imageView.setAdjustViewBounds(true);
imageView.setScaleType(ScaleType.CENTER_CROP);
File file = new File(_imageUrls[i]);
Uri uri = Uri.fromFile(file);
final String imagePathFromUri = uri.getPath();
final Bitmap bitmap = BitmapHelper.loadImageFromUrl(
"file://" + _imageUrls[i],
imagePathFromUri,
BUFFER_IO_SIZE);
if (bitmap != null) {
final Drawable drawable = new BitmapDrawable(
getResources(),
bitmap);
if (drawable != null) {
imageView.setBackgroundDrawable(drawable);
}
}
TextView textView = new TextView(_context);
textView.setTextAppearance(_context, R.style.ImageTitle);
layout.addView(imageView);
layout.addView(textView);
_viewFlipper.addView(layout);
}
_viewFlipper.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
}
});
}
help me solve my problem. There is a main layout RelativeLayout it is Linearlayout where I want to programmatically add view. Here is my code.
public class GenBarCodeActivity extends Activity {
BarCodeView Barview = null;
LinearLayout.LayoutParams layoutParams;
LinearLayout ll;
RelativeLayout rl;
Button getBarCode;
private static final int ID = 34646456;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_barcode);
getBarCode = (Button)findViewById(R.id.btnGetBarCode);
getBarCode.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
ll = (LinearLayout)findViewById(R.id.linearCodeView);
EANTEXT = edBarText.getText().toString();
ImageView old = (ImageView) ll.findViewById(ID);
if (old != null) {
((LinearLayout) old.getParent()).removeViewInLayout(old);
}
layoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
ll.addView(Barview, layoutParams);
rl.invalidate();
}
});
fillLinear();
setBarCode();
}
private void fillLinear(){
rl = (RelativeLayout)findViewById(R.id.layout_barcode);
ll = (LinearLayout)findViewById(R.id.linearCodeView);
layoutParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
ImageView imBar = new ImageView(this);
Bitmap imbitmap = BitmapFactory.decodeResource(getResources(), R.drawable.barcode);
imBar.setLayoutParams(layoutParams);
imBar.setImageBitmap(imbitmap);
imBar.setId(ID);
ll.setBackgroundColor(Color.TRANSPARENT);
ll.addView(imBar);
}
private void setBarCode(){
Barview = new BarCodeView(GenBarCodeActivity.this);
Barview.setBarCodeNum(0);
}
}
This is my View
public class BarCodeView extends View {
private static int numcode = 0;
private static String codedata = null;
public BarCodeView(Context context) {
super(context);
}
public void setBarCodeText(String text){
this.codedata = text;
}
public String getBarCodeText(){
return this.codedata;
}
public void setBarCodeNum(int num){
this.numcode = num;
}
public int getBarCodeNum(){
return this.numcode;
}
#Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
switch (numcode) {
// ean 13
case 0:
try{
showEAN13(canvas);
} catch (Exception e) {
e.printStackTrace();
}
break;
}
}
private static void showEAN13(Canvas canvas) throws Exception {
EAN13 barcode = new EAN13();
/*
EAN 13 Valid data char set:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Digits)
EAN 13 Valid data length: 12 digits only, excluding the last checksum digit
*/
barcode.setData(codedata);
// for EAN13 with supplement data (2 or 5 digits)
/*
barcode.setSupData("12");
// supplement bar height vs bar height ratio
barcode.setSupHeight(0.8f);
// space between barcode and supplement barcode (in pixel)
barcode.setSupSpace(15);
*/
// Unit of Measure, pixel, cm, or inch
barcode.setUom(IBarcode.UOM_PIXEL);
// barcode bar module width (X) in pixel
barcode.setX(2f);
// barcode bar module height (Y) in pixel
barcode.setY(90f);
// barcode image margins
barcode.setLeftMargin(10f);
barcode.setRightMargin(10f);
barcode.setTopMargin(10f);
barcode.setBottomMargin(10f);
// barcode image resolution in dpi
barcode.setResolution(72);
// disply barcode encoding data below the barcode
barcode.setShowText(true);
// barcode encoding data font style
barcode.setTextFont(new AndroidFont("Arial", Typeface.NORMAL, 10));
// space between barcode and barcode encoding data
barcode.setTextMargin(6);
barcode.setTextColor(AndroidColor.black);
// barcode bar color and background color in Android device
barcode.setForeColor(AndroidColor.black);
barcode.setBackColor(AndroidColor.white);
/*
specify your barcode drawing area
*/
RectF bounds = new RectF(120, 120, 0, 0);
barcode.drawBarcode(canvas, bounds);
}
}
here is my xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/layout_barcode"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f0e0a2"
android:orientation="vertical" >
<ImageView
android:id="#+id/closeBarCode"
android:layout_width="30dip"
android:layout_height="30dip"
android:layout_alignParentRight="true"
android:layout_alignTop="#+id/txtInfo"
android:layout_marginRight="3dp"
android:src="#drawable/delete" />
<TextView
android:id="#+id/txtInfo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginLeft="3dp"
android:layout_marginTop="3dp"
android:text="#string/barcode_title"
android:textColor="#000"
android:textSize="20dip" />
<LinearLayout
android:id="#+id/linearLayout1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/closeBarCode" >
<TextView
android:id="#+id/txtEAN"
android:layout_width="160dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/barcode_ean"
android:textColor="#000"
android:textSize="20dip" />
<Spinner
android:id="#+id/spEAN"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/txtInfo"
android:layout_below="#+id/linearLayout1" >
<TextView
android:id="#+id/txtCodeColor"
android:layout_width="160dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/barcode_color"
android:textColor="#000"
android:textSize="20dip" />
<Spinner
android:id="#+id/spCodeColor"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/linearLayout2"
android:layout_below="#+id/linearLayout2" >
<TextView
android:id="#+id/txtCodeBackColor"
android:layout_width="160dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/barcode_back_color"
android:textColor="#000"
android:textSize="20dip" />
<Spinner
android:id="#+id/spCodeBackColor"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearLayout4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_below="#+id/linearLayout3" >
<TextView
android:id="#+id/txtCodePosition"
android:layout_width="160dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="#string/barcode_position"
android:textColor="#000"
android:textSize="20dip" />
<Spinner
android:id="#+id/spCodePosition"
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_weight="1" />
</LinearLayout>
<LinearLayout
android:id="#+id/linearCodeView"
android:layout_width="300dip"
android:layout_height="200dip"
android:layout_below="#+id/edBarCode"
android:layout_marginRight="45dp"
android:layout_marginTop="25dip"
android:layout_toLeftOf="#+id/closeBarCode"
android:orientation="vertical" >
</LinearLayout>
<Button
android:id="#+id/btnSetBarCode"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="#+id/btnGetBarCode"
android:layout_alignBottom="#+id/btnGetBarCode"
android:layout_toLeftOf="#+id/closeBarCode"
android:text="#string/set_code" />
<Button
android:id="#+id/btnGetBarCode"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="31dp"
android:text="#string/get_code" />
<EditText
android:id="#+id/edBarCode"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/linearCodeView"
android:layout_alignRight="#+id/linearCodeView"
android:layout_below="#+id/txtCodeText"
android:layout_marginTop="23dp"
android:ems="10" />
<TextView
android:id="#+id/txtCodeText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignRight="#+id/edBarCode"
android:layout_below="#+id/txtInfo"
android:layout_marginRight="86dp"
android:text="#string/code_text"
android:textColor="#000"
android:textSize="20dip" />
</RelativeLayout>
I need to Linearlayout "#+id/linearCodeView" insert my BarCodeView.
View is not visible after adding LinearLayout.
RelativeLayout.LayoutParams paramsBottom = new RelativeLayout.LayoutParams(android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
android.view.ViewGroup.LayoutParams.WRAP_CONTENT);
rl.addView(ll, paramsBottom); //add linearlayout in relativelayout
Edit:-
LinearLayout.LayoutParams paramsBottom2 = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
ll.addView(Barview, paramsBottom2);//add Barview in linearlayout
OR
RelativeLayout.LayoutParams paramsBottom2 = new RelativeLayout.LayoutParams(android.view.ViewGroup.LayoutParams.WRAP_CONTENT,
android.view.ViewGroup.LayoutParams.WRAP_CONTENT);
rl.addView(Barview, paramsBottom2);//add Barview in relativelayout
Basically, an Activity should display on screen:
1. A logo on top. Must always be displayed. Must center both vertically and horizontally, when choices leaves extra space on screen.
2. A ScrollView at bottom. Hosts vertical LinearLayout, which in turn hosts a set of choices a user can choose from. Must take minimal space necessary to display all choices (So logo is vertically centered). Can take up up to (Screen - Logo) space on screen. Choices are added programmatically.
Now, I have defined it in layout as:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:padding="5dp"
android:src="#drawable/logo" />
<ScrollView
android:id="#+id/scrollView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="#id/imageView"
>
<LinearLayout
android:id="#+id/ChoicesPanel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
</LinearLayout>
</ScrollView>
</RelativeLayout>
If ImageView is layed out using layout_above=scrollView, ScrollView is layed out before, NOT taking into consideration minimum size of ImageView.
If ScrollView is layed out using layout_below=ImageView, ImageView just stays on top. When there are only 2-3 choices, screen looks pretty ugly.
Is there a way I can satisfy the constraints? Or should I define two different layout xml files, and switch to the correct one programmatically?
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:padding="5dp"
android:src="#drawable/ic_launcher" />
<ScrollView
android:id="#+id/scrollView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/imageView" >
<LinearLayout
android:id="#+id/ChoicesPanel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_1"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_1"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_2"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_2"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_3"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_3"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_4"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_4"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_5"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_5"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_6"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_6"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_1"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_2"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_2"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_3"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_3"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_4"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_4"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_5"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_5"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_text_6"/>
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="scroll_view_1_button_6"/>
</LinearLayout>
</ScrollView>
</RelativeLayout>
this seems to work for me. its like 14 items in the scrollview
public class TestActivity extends Activity {
private RelativeLayout mRelativeLayout;
private RelativeLayout mRelativeLayout2;
private ImageView mImageView;
private ScrollView mScrollView;
private TextView TV1;
private TextView TV2;
private TextView TV3;
private TextView TV4;
private Button B1;
private Button B2;
private Button B3;
private Button B4;
private RelativeLayout.LayoutParams lp;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mRelativeLayout = new RelativeLayout(this);
setContentView(mRelativeLayout);
mImageView = new ImageView(this);
mImageView.setId(1);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_TOP);
mImageView.setImageResource(R.drawable.ic_launcher);
mRelativeLayout.addView(mImageView, lp);
mScrollView = new ScrollView(this);
RelativeLayout.LayoutParams lp2 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
lp2.addRule(RelativeLayout.BELOW, mImageView.getId());
mRelativeLayout.addView(mScrollView, lp2);
mRelativeLayout2 = new RelativeLayout(this);
int itemcounts = mRelativeLayout2.getChildCount();
mScrollView.addView(mRelativeLayout2);
TV1 = new TextView(this);
TV1.setId(2);
TV1.setTextSize(20);
TV1.setText("Im a Text View. The First");
mRelativeLayout2.addView(TV1);
B1 = new Button(this);
B1.setId(3);
RelativeLayout.LayoutParams bl1 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
bl1.addRule(RelativeLayout.BELOW, TV1.getId());
B1.setText("Im a Button. The First");
B1.setTextSize(25);
mRelativeLayout2.addView(B1, bl1);
TV2 = new TextView(this);
RelativeLayout.LayoutParams tvl2 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
tvl2.addRule(RelativeLayout.BELOW, B1.getId());
TV2.setId(4);
TV2.setTextSize(20);
TV2.setText("Im a Text View. The Second");
mRelativeLayout2.addView(TV2, tvl2);
B2 = new Button(this);
B2.setId(5);
RelativeLayout.LayoutParams bl2 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
bl2.addRule(RelativeLayout.BELOW, TV2.getI());
B2.setText("Im a Button. The Second");
B2.setTextSize(25);
mRelativeLayout2.addView(B2, bl2);
TV3 = new TextView(this);
TV3.setId(6);
RelativeLayout.LayoutParams tvl3 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
tvl3.addRule(RelativeLayout.BELOW, B2.getId());
TV3.setTextSize(20);
TV3.setText("Im a Text View. The Third");
mRelativeLayout2.addView(TV3, tvl3);
B3 = new Button(this);
B3.setId(7);
RelativeLayout.LayoutParams bl3 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
bl3.addRule(RelativeLayout.BELOW, TV3.getId());
B3.setText("Im a Button. The Third");
B3.setTextSize(25);
mRelativeLayout2.addView(B3, bl3);
TV4 = new TextView(this);
TV4.setId(8);
RelativeLayout.LayoutParams tvl4 = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);
tvl4.addRule(RelativeLayout.BELOW, B3.getId());
TV4.setTextSize(20);
TV4.setText("Im a Text View. The Fourth");
mRelativeLayout2.addView(TV4, tvl4);
if (itemcounts < 4) {
lp = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.CENTER_IN_PARENT);
}
if (itemcounts > 4) {
lp = new RelativeLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_TOP);
}
}
}
try this
I am trying to add an edit text view dynamically to a layout from the java class. However from what I have implemented nothing changes on my action. This is what I have:
public final void onCreate(final Bundle i){
int value = 0;
isEdit = false;
try
{
super.onCreate(i);
this.setContentView(R.layout.contactedit);
ContactList.soundIndicator = 0;
etPhoneNumber = new ArrayList<EditText>();
this.etPhoneNumber.add((EditText) this.findViewById(R.id.etPhoneNumberInput));
this.addNumberBtn = (Button) this.findViewById(R.id.addNumberEditText);
addNumberBtn.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
//etPhoneNumber.add(new EditText(ContactEdit.this));
try{
LinearLayout layout = (LinearLayout) findViewById(R.id.contacteditll);
EditText temp = new EditText(ContactEdit.this);
temp.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
etPhoneNumber.add(temp);
layout.addView(temp);
}catch(Exception e){
Log.d(TAG, "Failed to create new edit text");
}
}
});
}
This is the xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:baselineAligned="true"
android:orientation="vertical"
android:id="#+id/contacteditll"
android:background="#drawable/darkimg">
<TextView
android:id="#+id/titlePrint"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/titlePrompt"
/>
<Spinner
android:id="#+id/spContactTitle"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:prompt="#string/titlePrompt"
/>
<TextView
android:text="#string/namePrint"
android:id="#+id/namePrint"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TextView>
<EditText android:layout_width="match_parent"
android:hint="#string/returnName"
android:id="#+id/etFirstNameInput"
android:layout_height="wrap_content"
android:layout_toRightOf= "#+id/namePrint">
</EditText>
<TextView
android:text="#string/secondPrint"
android:id="#+id/secondPrint"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</TextView>
<EditText android:layout_width="match_parent"
android:hint="#string/returnName"
android:id="#+id/etSecondNameInput"
android:layout_height="wrap_content"
android:layout_toRightOf= "#+id/namePrint">
</EditText>
<TextView android:id="#+id/numberPrint"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/numberPrint">
</TextView>
<EditText android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/etPhoneNumberInput"
android:hint="#string/returnNumber">
</EditText>
<Button android:id="#+id/addNumberEditText"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:freezesText="true"
android:editable="false"
android:text="ADD"
/>
<include
android:id="#+id/customedittext"
layout="#layout/myedittext"/>
<TextView android:id="#+id/emailPrint"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:text="#string/emailPrint">
</TextView>
<EditText android:layout_height="wrap_content"
android:layout_width="match_parent"
android:id="#+id/etEmailAddressInput"
android:hint="#string/returnEmail">
</EditText>
<Button
android:freezesText="true"
android:editable="false"
android:layout_gravity="center"
android:layout_height="wrap_content"
android:id="#+id/btnSaveButton"
android:layout_width="wrap_content"
android:text="#string/save"
android:layout_below="#+id/emailInput"
/>
</LinearLayout>
Whenever I click on my button the action is heard but nothing is done. The layout of the page does not change even though the new edit text is in my list of edit texts and I am adding the new edit text to the layout.
Any help would be appreciated thanks.
It sure gets added but you are not seeing it cause there is no space left. Two things to test:
Place the LinearLayout inside a ScrollView.
Use the weight parameter.
Using the weight parameter:
EditText temp = new EditText(ContactEdit.this);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT, 1);
temp.setLayoutParams(params);