I'm very new at android. Need to dynamically create LinearLayout inside RadioGroup with aligned TextViews as following. Here I just moved elements from palette and haven't changed any properties
But get this
What am I missing?
LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT, /* or MATCH_PARENT */
LinearLayout.LayoutParams.WRAP_CONTENT, /* or MATCH_PARENT */
1.0f);
final LinearLayout linearLayout = new LinearLayout(this);
final TextView text1 = new TextView(this);
text1.setText("aaa");
text1.setLayoutParams(param);
linearLayout.addView(text1);
final TextView text2 = new TextView(this);
text2.setText("bbb");
text2.setLayoutParams(param);
linearLayout.addView(text2);
final TextView text3 = new TextView(this);
text3.setText("ccc");
text3.setLayoutParams(param);
linearLayout.addView(text3);
radioGroup.addView(linearLayout);
LayoutParams should be both MATCH_PARENT and linearLayout should also be set to that params
Related
I want to design an UI with 3 elements, one TextView tvStart, one SeekBar sbProgress and one TextView tvEnd.
I want tvStart aligned left and tvEnd aligned right, with sbProgress at the center.
And I want to do everything programmatically!
I have this code:
public void MyLayout() {
LinearLayout layout = new LinearLayout(this);
TextView tvStart = new TextView(this);
SeekBar sbProgress = new SeekBar(this);
TextView tvEnd = new TextView(this);
tvStart.setText("0");
tvEnd.setText("100");
sbProgress.setMax(100);
layout.addView(tvStart);
layout.addView(sbProgress);
layout.addView(tvEnd);
setContentView(layout);
}
But it seems the 3 elements are aligned from left to right and the SeekBar is very short.
Is it possible to do such tings with LinearLayout or do I need to use RelativeLayout?
public void MyLayout() {
LinearLayout layout = new LinearLayout(this);
TextView tvStart = new TextView(this);
SeekBar sbProgress = new SeekBar(this);
TextView tvEnd = new TextView(this);
tvStart.setText("0");
tvEnd.setText("100");
sbProgress.setMax(100);
LinearLayout.LayoutParams startParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams sbParams = new LinearLayout.LayoutParams(0, LayoutParams.WRAP_CONTENT);
sbParams.weight = 1;
LinearLayout.LayoutParams endParams = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
layout.addView(tvStart, tvParams);
layout.addView(sbProgress, sbParams);
layout.addView(tvEnd, endParams);
setContentView(layout);
}
I have created LinearLayout programatically as
LinearLayout wrapper = new LinearLayout(this.getContext());
and TextView as TextView et = new TextView(getContext());
i wanted textviews layout height to be wrapcontent so i did this
et.setLayoutParams(new LayoutParams(android.view.ViewGroup.LayoutParams.WRAP_CONTENT, android.view.ViewGroup.LayoutParams.WRAP_CONTENT));
and then i add Textview et to LinearLayout as
wrapper.addView(et);
but when i set LayoutParams as above my textview dissapears and doesn't show in UI.
If I remove it by default Textview takes height as MATCHPARENT.
How can i set textviews layoutheight to WRAP_CONTENT?
Try this..
LinearLayout first_lay = new LinearLayout(this);
LinearLayout.LayoutParams lp_icon = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
first_lay.setOrientation(LinearLayout.VERTICAL);
first_lay.setLayoutParams(lp_icon);
LinearLayout.LayoutParams tests = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
TextView text1 = new TextView(this);
text1.setLayoutParams(tests);
text1.setText("Text");
text1.setTextSize(18);
first_lay.addView(text1);
also have to add that parent linear layout into the main contentlayout parent i.e it all be visible in side activity view
LinearLayout child_insidenew_layout = new LinearLayout(getActivity());
child_insidenew_layout.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout.LayoutParams child_inside_paramsnew = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
child_insidenew_layout.setLayoutParams(child_inside_paramsnew);
child_insidenew_layout.setGravity(Gravity.CENTER_VERTICAL);
child_insidenew_layout.setBackgroundResource(R.drawable.layout_selector);
TextView textrootname = new TextView(getActivity());
LinearLayout.LayoutParams TextView_params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
textrootname.setText("here is ur text");
textrootname.setSingleLine(true);
textrootname.setGravity(Gravity.CENTER);
textrootname.setTextColor(Color.BLACK);
textrootname.setTextSize(15);
child_insidenew_layout.addView(textrootname, TextView_params);
i want to create a linear layout where inside it it has text view and image button. And i want to create it dynamically.
LinearLayout layoutSection = new LinearLayout(getActivity());
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.MATCH_PARENT);
params.gravity = Gravity.CENTER;
params.setMargins(5,5,5,5);
imageView.setImageResource(R.drawable.image);
imageView.setLayoutParams(params);
TextView textView = newTextView(getActivity());
TextView.setText(("Enter text here");
layoutSection.addView(textView);
layoutSection.addView(imageView);
I have a RelativeLayout with ImageView and TextView. I want to the TextView right below the ImageView(with a small padding) and both the ImageView and TextView, aligned to center in the RelativeLayout.
The RelativeLayout is added Programatically
I have read some questions on SO regarding the alignment, but, I can't get them to work for me. Below is my current code...
Code for RelativeLayout
RelativeLayout relativeLayout = new RelativeLayout(this);
Code for ImageView
ImageView image = new ImageView(this);
RelativeLayout.LayoutParams lpImage = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
lpImage.addRule(RelativeLayout.CENTER_IN_PARENT);
//Setting the parameters on the Image
image.setLayoutParams(lpImage);
//adding imageview to relative layout
relativeLayout.addView(image);
Code for TextView
TextView textview = new TextView(this);
RelativeLayout.LayoutParams lpTextView = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
lpTextView.addRule(RelativeLayout.BELOW, image.getId());
//Setting the parameters on the TextView
textview.setLayoutParams(lpTextView);
//Adding TextView to relative layout
relativeLayout.addView(textview);
If I set RelativeLayout.CENTER_IN_PARENT for both image and text, they overlap eachother, which is understandable as RelativeLayout supports overlapping of views.
I thought setting RelativeLayout.BELOW for textview will make it align itself below the image, but it's not the case. I even tried RelativeLayout.ALIGN_BOTTOMfor textview, but even that didn't work.
Try this..
RelativeLayout relativeLayout = new RelativeLayout(this);
RelativeLayout.LayoutParams lprela = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.MATCH_PARENT);
relativeLayout.setLayoutParams(lprela);
ImageView image = new ImageView(this);
RelativeLayout.LayoutParams lpImage = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
lpImage.addRule(RelativeLayout.ALIGN_PARENT_TOP);
//Setting the parameters on the Image
image.setLayoutParams(lpImage);
//adding imageview to relative layout
relativeLayout.addView(image);
TextView textview = new TextView(this);
RelativeLayout.LayoutParams lpTextView = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.WRAP_CONTENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
lpTextView.addRule(RelativeLayout.BELOW, image.getId());
//Setting the parameters on the TextView
textview.setLayoutParams(lpTextView);
//Adding TextView to relative layout
relativeLayout.addView(textview);
Or
LinearLayout linearLayout = new LinearLayout(this);
LinearLayout.LayoutParams lp_ineer_ver = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
linearLayout.setGravity(Gravity.CENTER);
linearLayout.setOrientation(LinearLayout.VERTICAL);
linearLayout.setLayoutParams(lp_ineer_ver);
ImageView image = new ImageView(this);
LinearLayout.LayoutParams lpImage = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
//Setting the parameters on the Image
image.setLayoutParams(lpImage);
//adding imageview to relative layout
linearLayout.addView(image);
TextView textview = new TextView(this);
LinearLayout.LayoutParams lpTextView = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
//Setting the parameters on the TextView
textview.setLayoutParams(lpTextView);
//Adding TextView to relative layout
linearLayout.addView(textview);
Below process may also work for you.
1) Add Image view & Text view in vertical LinearLayout.
2) Add the linear layout to Center of Relative layout.(using CENTER_IN_PARENT).
I dynamically declared some horizontal layouts witch contains some elements like ImageButtons, Buttons, and TextViews, these elements centrally oriented, all of the elements are oriented perfectly but the TextViews. I tried both declaring them directly like the rest of the elements and declaring them each inside a vertical layout but both didn't work:
that's my code:
// the layout params for the Horizontal Layout
LinearLayout.LayoutParams lp_icon = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
0, 1);
lp_icon.setMargins(10, 15, 5, 0);
// the layout params for the elements that contained in the horizontal LinearLayout
LinearLayout.LayoutParams lp_ineer_ver = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT, Gravity.CENTER);
// the layout params for the TextViews
LinearLayout.LayoutParams tests = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
// the layout params for the vertical layouts that contaion TextViews
LinearLayout.LayoutParams temp_lay = new LinearLayout.LayoutParams(
0,
LinearLayout.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
temp_lay.weight = 1;
// the elements declaration
icon1.setLayoutParams(lp_icon);// icon1 is then horizontal LinearLayout
icon1.setBackgroundResource(R.drawable.ac_overlay);
icon1.setOrientation(LinearLayout.HORIZONTAL);
icon1.setTag(NORMAL);
// TextView contained in a vertical Layout
LinearLayout lay = new LinearLayout(this);
icon1.addView(lay);
lay.setLayoutParams(temp_lay);
lay.setBackgroundColor(Color.TRANSPARENT);
lay.setOrientation(LinearLayout.VERTICAL);
TextView text1 = new TextView(this);
lay.addView(text1);
text1.setLayoutParams(tests);
text1.setText("Master Bedroom");
text1.setTextSize(12);
text1.setTextColor(Color.WHITE);
// other elements
ImageButton image = new ImageButton(this);
icon1.addView(image);
image.setLayoutParams(lp_ineer_ver);
image.setImageResource(R.drawable.grpbuttonfocus6);
image.setBackgroundColor(Color.TRANSPARENT);
Button testbut = new Button(this);
icon1.addView(testbut);
testbut.setLayoutParams(lp_ineer_ver);
testbut.setText(" 8");
testbut.setTextSize(12);
testbut.setBackgroundColor(Color.TRANSPARENT);
testbut.setTextColor(Color.WHITE);
ImageButton testcol = new ImageButton(this);
icon1.addView(testcol);
testcol.setLayoutParams(lp_ineer_ver);
testcol.setImageResource(R.drawable.home_cool);
testcol.setBackgroundColor(Color.TRANSPARENT);
// the TextView that's declared directly in the Horizontal Layout
TextView text2 = new TextView(this);
icon1.addView(text2);
text2.setLayoutParams(lp_ineer_ver);
text2.setText("00");
text2.setTextSize(12);
Try this..
Juse two changes in your code like below for first textview icon1.addView(text1); and the last textview text2.setLayoutParams(tests);
First
TextView text1 = new TextView(this);
icon1.addView(text1); //correction here
text1.setLayoutParams(tests);
text1.setText("Master Bedroom");
text1.setTextSize(12);
and Second
TextView text2 = new TextView(this);
icon1.addView(text2);
text2.setLayoutParams(tests); //correction here
text2.setText("00");
text2.setTextSize(12);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
and you can have Try adding the following code for applying the layout params to the TextView
LayoutParams lp = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
lp.addRule(LinearLayout.CENTER_IN_PARENT);
textView.setLayoutParams(lp);
in XML file :
android:gravity = "center"