I have created programmatically a RelativeLayout which contains a button. I have also created a ScrollView which contains a LinearLayout in which are more than 10 TextViews. I want to have the RelativeLayout to be aligned top and fixed. When someone tries to scroll down, i want all the TextViews to go behind the fixed RelativeLayout. I want that button to be always visible. With this code, the RelativeLayout and the button are not displayed. Where am i wrong?
RelativeLayout (fixed)
- Button
LinearLayout
- ScrollView
- TextView
- + other 10 TextViews
Here is my code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final RelativeLayout relativeLayout = new RelativeLayout(this);
RelativeLayout.LayoutParams relativeLayoutParams = new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
relativeLayout.setLayoutParams(relativeLayoutParams);
this.setContentView(relativeLayout);
final Button restartButton = new Button(this);
restartButton.setText(R.string.restartButton);
LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
restartButton.setLayoutParams(buttonParams);
relativeLayout.addView(restartButton);
ScrollView scrollView = new ScrollView(this);
this.setContentView(scrollView);
final LinearLayout linearLayout = new LinearLayout(this);
LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
linearLayout.setLayoutParams(linearLayoutParams);
linearLayout.setOrientation(linearLayout.VERTICAL);
scrollView.addView(linearLayout);
TextView textView1 = new TextView(this);
testTitle.setText(R.string.text_view1);
linearLayout.addView(textView1);
// + other 10 text views
}
Thanks!
In your code you replace your RelativeLayout with ScrollView. Just set firstly some LinearLayout as contentView and then put there your RelativeLayout via addView(relativeLayout) and the put there you scrollView also via addView(scrollView)
EDIT:
your new code:
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
final LinearLayout mainLinearLayout = new LinearLayout(this);
LinearLayout.LayoutParams mainLinearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
mainLinearLayout.setLayoutParams(mainLinearLayoutParams);
mainLinearLayout.setOrientation(LinearLayout.VERTICAL);
this.setContentView(mainLinearLayout);
final RelativeLayout relativeLayout = new RelativeLayout(this);
RelativeLayout.LayoutParams relativeLayoutParams = new RelativeLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
relativeLayout.setLayoutParams(relativeLayoutParams);
mainLinearLayout.addView(relativeLayout);
final Button restartButton = new Button(this);
restartButton.setText(R.string.restartButton);
LinearLayout.LayoutParams buttonParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
restartButton.setLayoutParams(buttonParams);
relativeLayout.addView(restartButton);
ScrollView scrollView = new ScrollView(this);
mainLinearLayout.addView(scrollView);
final LinearLayout linearLayout = new LinearLayout(this);
LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
linearLayout.setLayoutParams(linearLayoutParams);
linearLayout.setOrientation(linearLayout.VERTICAL);
scrollView.addView(linearLayout);
TextView textView1 = new TextView(this);
testTitle.setText(R.string.text_view1);
linearLayout.addView(textView1);
// + other 10 text views
}
EDIT 2: renamed first linearLayout to mainLinearLayout according to the comment
Related
how can I do something like this programmatically? There must be one Checkbox and two vertical textview in MaterialCardView.I tried using Linearlayout but I can't solve it.
LinearLayout.LayoutParams layoutparams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT
);
linearLayout.setOrientation(LinearLayout.VERTICAL);
mCardView=new MaterialCardView(this);
mCardView.setLayoutParams(layoutparams);
mCardView.setElevation(2);
linearLayout.addView(mCardView);
LinearLayout linearLayout1=new LinearLayout(this);
linearLayout1.setOrientation(LinearLayout.HORIZONTAL);
linearLayout1.setLayoutParams(layoutparams);
linearLayout.addView(linearLayout1)
checkBox=new CheckBox(this);
linearLayout1.addView(checkBox);
txt_baslik=new TextView(this);
txt_tarih=new TextView(this);
txt_baslik.setLayoutParams(layoutparams);
txt_tarih.setLayoutParams(layoutparams);
txt_baslik.setText("deneme baslik");
txt_tarih.setText("deneme tarih");
linearLayout1.addView(txt_baslik);
linearLayout1.addView(txt_baslik);
LinearLayout linearLayout2=new LinearLayout(this);
linearLayout2.setOrientation(LinearLayout.VERTICAL);
linearLayout2.setLayoutParams(layoutparams);
linearLayout.addView(linearLayout2);
I'm so confused
you can do like that :
LinearLayout.LayoutParams layoutparams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
LinearLayout linearLayout=new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.HORIZONTAL);
CardView mCardView=new MaterialCardView(this);
mCardView.setLayoutParams(layoutparams);
mCardView.setElevation(2);
CheckBox checkBox=new CheckBox(this);
LinearLayout.LayoutParams checkBoxParam = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
checkBoxParam.gravity = Gravity.CENTER;
checkBox.setLayoutParams(checkBoxParam);
LinearLayout verticalLinLayout=new LinearLayout(this);
verticalLinLayout.setOrientation(LinearLayout.VERTICAL);
verticalLinLayout.setLayoutParams(layoutparams);
TextView txt_baslik=new TextView(this);
TextView txt_tarih=new TextView(this);
txt_baslik.setLayoutParams(layoutparams);
txt_tarih.setLayoutParams(layoutparams);
txt_baslik.setText("deneme baslik");
txt_tarih.setText("deneme tarih");
verticalLinLayout.removeAllViews();
verticalLinLayout.addView(txt_baslik);
verticalLinLayout.addView(txt_tarih);
linearLayout.addView(checkBox);
linearLayout.addView(verticalLinLayout);
mCardView.addView(linearLayout);
don't forgor add mCardView into your parent view at last.
I'm having a problem with LinearLayout where I want to display a TableLayout after a TextView. I've tried modifying the LayoutParams however I can't seem to make it wrap (which I'm assuming I want it to do).
This is simplified version:
ScrollView sv = (ScrollView) findViewById(R.id.sv);
sv.removeAllViews();
LinearLayout ll = new LinearLayout(this);
sv.addView(ll);
//This is displayed
TextView tv = new TextView(this);
tv.setText("Hello World");
ll.addView(tv);
//This is not displayed - but if I remove the above view it will display...
TableLayout tl = new TableLayout(this);
ll.addView(tl, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
By specifiying Orientation as Vertical it worked for me:
ScrollView sv = (ScrollView) findViewById(R.id.sv);
sv.removeAllViews();
LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.VERTICAL);
sv.addView(ll);
TextView tv = new TextView(this);
tv.setText("Hello World");
ll.addView(tv);
TableLayout tl = new TableLayout(this);
ll.addView(tl);
I'm trying to create programmatically parent LinearLayout
and 3 TextViews.
One TextView must be aligned in top left, the second one in the center of parent
and the third one to the right and bottom of my screen. Everything must be done in code.
I'm almost done, but there is still some problem.
All my 3 views are on the top
My code:
public class ActivityFour extends AppCompatActivity {
private LinearLayout mLinearLayout;
private TextView tv1;
private TextView tv2;
private TextView tv3;
private static final int TV_ID1 = 101;
private static final int TV_ID2 = 102;
private static final int TV_ID3 = 103;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mLinearLayout = new LinearLayout(this);
mLinearLayout.setOrientation(LinearLayout.VERTICAL);
ViewGroup.LayoutParams llParams = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT);
setContentView(mLinearLayout, llParams);
LinearLayout.LayoutParams linlayout_params1 =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams linlayout_params2 =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams linlayout_params3 =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
linlayout_params1.setMargins(16,16,16,16);
tv1 = new TextView(this);
tv1.setId(TV_ID1);
linlayout_params1.gravity = Gravity.START;
linlayout_params1.gravity = Gravity.TOP;
mLinearLayout.addView(tv1, linlayout_params1);
tv1.setText("TextView number ONE");
linlayout_params2.setMargins(16,16,16,16);
tv2 = new TextView(this);
tv2.setId(TV_ID2);
linlayout_params2.gravity = Gravity.CENTER;
mLinearLayout.addView(tv2, linlayout_params2);
tv2.setText("TextView number TWO");
linlayout_params3.setMargins(16,16,16,16);
tv3 = new TextView(this);
tv3.setId(TV_ID3);
linlayout_params3.gravity = Gravity.END;
mLinearLayout.addView(tv3, linlayout_params3);
tv3.setText("TextView number THREE");
}
}
After adding the weight property to all view.params it looks like this
In order to make the LinearLayout fill all the available space, you need to set the android:layout_weight attribute on the middle child View. You can do it programmatically by using a Constructor which takes the weight as third parameter:
LinearLayout.LayoutParams linlayout_params2 =
new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT, 1);
First of all no need to create liner layout for all textview you can do like this:
in xml file :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/test"
tools:context=".activity.TestActivity"/>
and in activity file :
LinearLayout layout = findViewById(R.id.test);
TextView product_1 = new TextView(this);
product_1.setText("Product 1");
product_1.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,0,1f));
layout.addView(product_1);
TextView product_2 = new TextView(this);
product_2.setText("Product 2");
product_2.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,0,1f));
product_2.setGravity(Gravity.CENTER);
layout.addView(product_2);
TextView product_3 = new TextView(this);
product_3.setText("Product 3");
product_3.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,0,1f));
product_3.setGravity(Gravity.END|Gravity.BOTTOM);
layout.addView(product_3);
I don't know what is the problem. I am creating the simple phone-book, so i have name of abonent, image and call button under the name. And when i try to set width with the layoutParams parameter for button, it doesn't change anything, btn.setWidth(); doesn't work either.
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final LinearLayout linear = (LinearLayout)findViewById(R.id.linear);
LinearLayout.LayoutParams sublparams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams childparams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams imageparams = new LinearLayout.LayoutParams(200, 200);
linear.setOrientation(LinearLayout.VERTICAL);
for(int i = 0; i < 10 ; i++){
LinearLayout sublinear = new LinearLayout(this);
Button btn = new Button(this);
ImageView img = new ImageView(this);
TextView txt = new TextView(this);
img.setImageResource(R.drawable.img);
txt.setText("Abonent " + (i+1));
btn.setBackgroundColor(getColor(R.color.mygreen));
btn.setText("+3800000");
txt.setLayoutParams(childparams);
btn.setLayoutParams(imageparams);
img.setLayoutParams(imageparams);
linear.addView(txt);
sublinear.addView(img);
sublinear.addView(btn);
linear.addView(sublinear, sublparams);
}
}
}
result of programm, green vertical lines are buttons, that i cannot to make wider
your button is using LayoutParams to set width and heigth so you need to change this properties here (LinearLayout.LayoutParams(widht, height)):
LinearLayout.LayoutParams imageparams = new LinearLayout.LayoutParams(500, 300);
and the size of your button must change, because you are setting this values.
btn.setLayoutParams(imageparams);
I have a relative layout that has two buttons and one textview. What i'm trying to have happen is having one button on the far left, the textview in the center, and the other button on the far right. Trying to do this without XML.
Here's my code:
RelativeLayout fm = new RelativeLayout(this);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
fm.setLayoutParams(lp);
fm.setBackgroundColor(Color.CYAN);
Button done = new Button(this);
done.setId(10);
done.setText("Done");
Button save = new Button(this);
save.setId(12);
save.setText("Save");
TextView formManager = new TextView(this);
formManager.setId(11);
formManager.setText("Form Manager");
lp.addRule(RelativeLayout.CENTER_IN_PARENT);
fm.addView(formManager, lp);
lp.removeRule(RelativeLayout.CENTER_IN_PARENT);
lp.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
fm.addView(done, lp);
lp.removeRule(RelativeLayout.ALIGN_PARENT_LEFT);
lp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
fm.addView(save, lp);
lp.removeRule(RelativeLayout.ALIGN_PARENT_RIGHT);
mainLayout.addView(fm);
Problem is...is that the Save button stretches and takes up the whole layout along with being very thin. Basically with this code nothing is happening like I thought. Any ideas on how to achieve this goal?
try this way
LinearLayout mainLayout = (LinearLayout) findViewById(R.id.mainLayout);
RelativeLayout fm = new RelativeLayout(this);
RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
fm.setLayoutParams(lp);
fm.setBackgroundColor(Color.CYAN);
Button done = new Button(this);
done.setId(10);
done.setText("Done");
Button save = new Button(this);
save.setId(12);
save.setText("Save");
TextView formManager = new TextView(this);
formManager.setId(11);
formManager.setText("Form Manager");
RelativeLayout.LayoutParams lpp = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
formManager.setLayoutParams(lpp);
lpp.addRule(RelativeLayout.CENTER_IN_PARENT);
fm.addView(formManager, lpp);
RelativeLayout.LayoutParams doneLayoutParams = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
done.setLayoutParams(doneLayoutParams);
doneLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
fm.addView(done, doneLayoutParams);
RelativeLayout.LayoutParams saveLayoutParams = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
save.setLayoutParams(saveLayoutParams);
saveLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
fm.addView(save, saveLayoutParams);
mainLayout.addView(fm);