I'm trying to make a list of database items like the following..
for (int i=0; i < jArray.length(); i++)
{
JSONObject row = jArray.getJSONObject(i);
LinearLayout ll = new LinearLayout(MainActivity.this);
ll.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,100));
Button btn = new Button(MainActivity.this);
//btn.setText(row.getString("subject"));
btn.setText(String.valueOf(i));
btn.setLayoutParams(new LinearLayout.LayoutParams(0,LinearLayout.LayoutParams.MATCH_PARENT,(float)0.8));
File imgFile = new File(file_path);
Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
ImageView iv = new ImageView(MainActivity.this);
iv.setScaleType(ImageView.ScaleType.FIT_XY);
iv.setImageBitmap(myBitmap);
iv.setLayoutParams(new LinearLayout.LayoutParams(0,LinearLayout.LayoutParams.MATCH_PARENT,(float)0.2));
ll.addView(btn);
ll.addView(iv);
LinearLayout sv = findViewById(R.id.sv_layout);
sv.addView(ll);
}
The result is like this:
But I want to have space between Linear Layouts and make Image height shorter to be equal with button height
How can I achieve this? Thank you,
Please Try this code
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, 100);
params.setMargins(0, 5, 5, 10);
ll.setLayoutParams(params);
you can add your specific margins in this line params.setMargins(0, 5, 5, 10);
Take button and image in linear layout with horizontal orientation. Set Button and Imageview height to wrap content. Now for gap between Linear Layouts give appropriate margin.
Set the margins in the layout params and pass them to your ImageView object.
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(0,LinearLayout.LayoutParams.MATCH_PARENT,(float)0.2);
int dp = getDps(8);
layoutParams.setMargins(0,dp,0,dp);
iv.setLayoutParams(layoutParams);
Function getDps():
public int getDps(int sizeInDp){
float scale = getResources().getDisplayMetrics().density;
return (int) (sizeInDp*scale + 0.5f);
}
This looks like:
Related
I am trying to put the bitmap in the center of my layout (Center-horizontal) but my bitmap always starts with the left and not centered. I assign the x value to setbound which center my image but shrink it rather the maintaining the ratio I selected.
private void setImageinText(Bitmap myBitmap){
myBitmap = Util.scaleBitmapToFitWidth(myBitmap, 1360, true);
Drawable d = new BitmapDrawable(getResources(), myBitmap);
Point outSize = new Point();
WindowManager windowManager = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
Display display = windowManager.getDefaultDisplay();
display.getSize(outSize);
int[] widthAndHeight = new int[2];
widthAndHeight[0] = outSize.x;
int x = (widthAndHeight[0]- d.getIntrinsicWidth())/2;
SpannableString ssd = new SpannableString("\n \n");
d.setBounds(x, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
ImageSpan span = new ImageSpan(d, ImageSpan.ALIGN_BASELINE);
ssd.setSpan(span, 1 , 2, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
texto.setTransformationMethod(null);
texto.getText().insert(texto.getSelectionStart(), ssd);
}
take ImageView below TextView and set it Centerhorizontal with Visibility GONE, then when you capture image set it in that ImageView and VISIBLE it.
I'm trying to add some EditTexts to a TableRow programmatially, yet they don't show up on the screen. If I add the EditTexts directly to the TableLayout it works fine but I do want to have them in one row afterall...
public void createPlayers(){
EditText[] editTextSpieler = new EditText[anzahl_Spieler];
TableRow tableRow = new TableRow(getActivity());
tableRow.setLayoutParams(new TableRow.LayoutParams(
TableRow.LayoutParams.MATCH_PARENT,
TableRow.LayoutParams.WRAP_CONTENT));
tableLayout.addView(tableRow);
for(int i = 0; i < anzahl_Spieler; i++){
editTextSpieler[i] = new EditText(getActivity());
editTextSpieler[i].setLayoutParams(layoutparams);
tableRow.addView(editTextSpieler[i]);
editTextSpieler[i].getLayoutParams().width = dWidth/(anzahl_Spieler + 1);
editTextSpieler[i].setHint("Name");
}
}
Thanks in advance.
Solution:
layoutparams = new TableRow.LayoutParams(
TableRow.LayoutParams.MATCH_PARENT,
TableRow.LayoutParams.WRAP_CONTENT);
specifying MATCH_PARENT and WRAP_CONTENT with TableRow.LayoutParams did the job
Can you try this change.
editTextSpieler[i].getLayoutParams().width = dWidth/(anzahl_Spieler + 1);
editTextSpieler[i].setHint("Name");
//Move to last line in the loop.
tableRow.addView(editTextSpieler[i]);
I am adding TextViews programatically to a LinearLayout. But when the second TextView is added, it seems to replace the first.
Here is the code:
LinearLayout l = (LinearLayout) findViewById(R.id.contacts_container);
for (int i = 0; i < array.length(); i++) {
JSONObject object = array.getJSONObject(i);
String username = object.getString("username");
String status = object.getString("status");
// create wrapper
LinearLayout wrapper = new LinearLayout(getApplicationContext());
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT);
wrapper.setOrientation(LinearLayout.HORIZONTAL);
int padding = (int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 5, getResources().getDisplayMetrics());
wrapper.setPadding(padding,padding,padding,padding);
wrapper.setLayoutParams(lp);
l.addView(wrapper);
// add Imageview to wrapper
ImageView image = new ImageView(getApplicationContext());
image.setBackgroundResource(R.drawable.icon_only_dark_crop);
lp = new LinearLayout.LayoutParams((int)TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 50, getResources().getDisplayMetrics()), (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 50, getResources().getDisplayMetrics()));
lp.setMargins(0, 0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 10, getResources().getDisplayMetrics()), 0);
image.setLayoutParams(lp);
wrapper.addView(image);
// add linearLayout text wrapper to main wrapper
LinearLayout textWrapper = new LinearLayout(getApplicationContext());
textWrapper.setOrientation(LinearLayout.VERTICAL);
textWrapper.setPadding(0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()), 0, 0);
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.MATCH_PARENT, 0.9f);
textWrapper.setLayoutParams(params);
wrapper.addView(textWrapper);
// add username TextView to textWrapper
TextView usernameText = new TextView(getApplicationContext());
lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
usernameText.setLayoutParams(lp);
usernameText.setText(username);
usernameText.setTextColor(Color.parseColor("#FFFFFF"));
usernameText.setTextSize(0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()));
textWrapper.addView(usernameText);
// add status TextView to textWrapper
TextView statusText = new TextView(getApplicationContext());
lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
usernameText.setLayoutParams(lp);
usernameText.setText(status);
usernameText.setTextColor(Color.parseColor("#FFFFFF"));
usernameText.setTextSize(0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()));
textWrapper.addView(statusText);
}
It loops twice and two "wrapper" LinearLayouts get added to the main LinearLayout fine. But for each wrapper LinearLayout it should add two TextViews, but when I run the application, only the statusView displays. If I remove the statusView, the usernameView displays fine.
Why is that when the statusView is added to the wrapper, the usernameView seems to be hidden or removed?
You copy pasted the same layout variable name when initializing the second textview
use this instead
// add username TextView to textWrapper
TextView usernameText = new TextView(getApplicationContext());
lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
usernameText.setLayoutParams(lp);
usernameText.setText(username);
usernameText.setTextColor(Color.parseColor("#FFFFFF"));
usernameText.setTextSize(0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()));
textWrapper.addView(usernameText);`
// add status TextView to textWrapper
TextView statusText = new TextView(getApplicationContext());
lp = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
statusText.setLayoutParams(lp);
statusText.setText(status);
statusText.setTextColor(Color.parseColor("#FFFFFF"));
statusText.setTextSize(0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()));
textWrapper.addView(statusText);
in your second textview, check the below text.
TextView **statusText** = new TextView(getApplicationContext());
**usernameText**.setLayoutParams(lp);
**usernameText**.setText(status);
**usernameText**.setTextColor(Color.parseColor("#FFFFFF"));
**usernameText**.setTextSize(0, (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 15, getResources().getDisplayMetrics()));
textWrapper.addView(statusText);
Probably because your textWrapper does'nt have a orientation specified. Define it as vertical or horizontal depending on your needs and it should work fine.
on xml layout, I have a FrameLayout with no child. Then I add a list buttons programatically into this framelayout by this code below:
private void addNumbers(){ // Numbers is set with random position
for (int i = 1; i < 20; i++) {
Button btn = new Button(this);
btn.setText("" + i);
btn.setId(i);
FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(50, 50);
int leftMargin = new Random().nextInt(widthScreen - btnSize );
int topMargin = new Random().nextInt(heightScreen - btnSize);
lp.leftMargin = leftMargin;
lp.topMargin = topMargin;
btn.setLayoutParams(lp);
framelayout1.addView(btn);
//framelayout2.addView(btn);
}
}
And some buttons overlap together, I do not want to happen this. How to avoid this problem ? Thanks in advance.
P/s: Sorry I can not upload image from my company, all upload > 4K is reject, please tell me if the question is not clear.
I am trying to building a linear layout programmatically, in which, there are 4 buttons in all, each of the button simply positioned below the previous button. Just like the picture shows below:
And as you can see from the picture above, each button has exactly the same size but they have different layout_margins, the first button has a larger value in layout_marginTop while the other 3 buttons has the same value in layout_marginTop.
Basically to build a layout like this by xml is very simple but now I have really come across difficulties in building all this only through java code. I have gone through many posts and now I can easily add 4 buttons in proper sizes but I just could not find a proper way to programmatically set the layout_margin for each of the button.
To simple add four buttons, I could do like this:
public class mainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL); //Can also be done in xml by android:orientation="vertical"
for (int i = 0; i < 3; i++) {
LinearLayout row = new LinearLayout(this);
row.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
for (int j = 0; j < 4; j++) {
Button btnTag = new Button(this);
btnTag.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
btnTag.setText("Button " + (j + 1 + (i * 4 )));
btnTag.setId(j + 1 + (i * 4));
row.addView(btnTag);
}
layout.addView(row);
}
setContentView(layout);
//setContentView(R.layout.main);
}
}
And to programmatically set margins for each button(view), I could do like this:
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.setMargins(0, 2, 0, 0);
button.setLayoutParams(params);
But here comes the problem: as long as I setLayoutParams for the 4 buttons, and then add 4 buttons into Linearlayout by "addView(button)", only the first button could be displayed in the proper size with the proper margins. All the other 3 buttons just disappeared. And With many tests I just found it seems that only one layoutParams could be allowed in a linearlayout object. As a result, as long as I set different layout params for different buttons, only the first button could be displayed. But since here the margin params for my 4 buttons are definitely different thus I think I have to use different layoutparams for different buttons.
So pls anyone tell me how could I programmatically set the margin for my each of my buttons and make them display properlly? This has already sucked my life for two days, pls help! :)
linear = (LinearLayout) rootView.findViewById(R.id.linear);
.
.
.
RelativeLayout.LayoutParams layoutParam = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
LinearLayout layout = new LinearLayout(getActivity());
layout.setLayoutParams(layoutParam);
layout.setOrientation(LinearLayout.VERTICAL);
// Below will add three linear layout with 4 buttons in each
for (int i = 0; i < 3; i++) {
LinearLayout row = new LinearLayout(getActivity());
row.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
//Here is important
row.setOrientation(LinearLayout.VERTICAL);
for (int j = 0; j < 4; j++) {
Button btnTag = new Button(getActivity());
btnTag.setLayoutParams(new LayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT));
btnTag.setText("Button " + (j + 1 + (i * 4)));
btnTag.setId(j + 1 + (i * 4));
row.addView(btnTag);
}
layout.addView(row);
}
linear.addView(layout);
// You can set also
// setContentView(layout)