I am trying to create a viewGroup that takes the form of a 'post' and I need this view to have an image in the upper left and then a username and content to the right of that post, aligned with eachother however I can not seem to get the layouts to move. They just stay overlapping.
public ViewGroup generateViewGroup(Context context){
RelativeLayout rl = new RelativeLayout(context);
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Point p = new Point();
wm.getDefaultDisplay().getSize(p);
TextView tvUsername = new TextView(context);
tvUsername.setText(userName);
TextView tvPostContent = new TextView(context);
tvPostContent.setText(postContent);
ImageView iv = new ImageView(context);
RelativeLayout.LayoutParams lpTvUsername = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
lpTvUsername.addRule(RelativeLayout.RIGHT_OF,0);
lpTvUsername.addRule(RelativeLayout.ALIGN_TOP,0);
tvUsername.setLayoutParams(lpTvUsername);
RelativeLayout.LayoutParams lpTvPostContent = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
lpTvPostContent.addRule(RelativeLayout.RIGHT_OF,0);
lpTvPostContent.addRule(RelativeLayout.BELOW,1);
tvPostContent.setLayoutParams(lpTvPostContent);
LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
if (userPic==null) Log.e("generateViewGroup","userPic is null");
iv.setImageDrawable(userPic);
rl.addView(iv, 0);
rl.addView(tvUsername,1);
rl.addView(tvPostContent);
rl.setLayoutParams(lp);
}
I have modified the code in the following way and set it as the content view of a blank Activity:
RelativeLayout rl = new RelativeLayout(context);
WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
Point p = new Point();
wm.getDefaultDisplay().getSize(p);
//
// integer ID's for all the Views;
int ivID = 0x0FD;
int tvUserNameID = 0x0FE;
int tvPostContentID = 0x0FF;
//
TextView tvUsername = new TextView(context);
//
tvUsername.setId(tvUserNameID); // Set the ID
//
tvUsername.setText(userName);
TextView tvPostContent = new TextView(context);
//
tvPostContent.setId(tvPostContentID); // Set the ID
//
tvPostContent.setText(postContent);
ImageView iv = new ImageView(context);
//
iv.setId(ivID); // Set the ID
//
RelativeLayout.LayoutParams lpTvUsername = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
//
//lpTvUsername.addRule(RelativeLayout.RIGHT_OF,0);
//lpTvUsername.addRule(RelativeLayout.ALIGN_TOP,0);
//
// Reference the ID not the Index;
lpTvUsername.addRule(RelativeLayout.RIGHT_OF,ivID);
lpTvUsername.addRule(RelativeLayout.ALIGN_TOP,ivID);
//
tvUsername.setLayoutParams(lpTvUsername);
RelativeLayout.LayoutParams lpTvPostContent = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
//
// lpTvPostContent.addRule(RelativeLayout.RIGHT_OF,0);
// lpTvPostContent.addRule(RelativeLayout.BELOW,1);
//
// Reference the ID not the Index;
lpTvPostContent.addRule(RelativeLayout.RIGHT_OF,ivID);
lpTvPostContent.addRule(RelativeLayout.BELOW,tvUserNameID);
//
tvPostContent.setLayoutParams(lpTvPostContent);
LayoutParams lp = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
if (userPic==null) Log.e("generateViewGroup","userPic is null");
iv.setImageDrawable(userPic);
rl.addView(iv, 0);
rl.addView(tvUsername,1);
rl.addView(tvPostContent);
rl.setLayoutParams(lp);
setContentView(rl);
Mainly the problem was taking place because while setting the LayoutParams you were referencing the index not the Views ID.
Related
I have programmatically added Card View. I just want to make it clickable and show animation while it is clicked. Here is my Code
CardView cardView = new CardView(this);
LayoutParams layoutParams = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
cardView.setLayoutParams(layoutParams);
cardView.setRadius(15);
cardView.setPadding(25, 25, 25, 25);
cardView.setCardBackgroundColor(Color.MAGENTA);
TextView textView = new TextView(this);
textView.setLayoutParams(layoutParams);
textView.setText("Programmatically set");
textView.setGravity(Gravity.CENTER);
textView.setTextColor(Color.WHITE);
cardView.addView(textView);
LinearLayout linearLayout = findViewById(R.id.linearLayout1);
linearLayout.addView(cardView);
int[] attrs = new int[]{R.attr.selectableItemBackground};
TypedArray typedArray = this.obtainStyledAttributes(attrs);
int selectableItemBackground = typedArray.getResourceId(0, 0);
typedArray.recycle();
cardView.setForeground(this.getDrawable(selectableItemBackground));
cardView.setClickable(true);
With the Material Components Library just use:
cardView.setRippleColor(ContextCompat.getColorStateList(this,R.color.selector_card));
You can use this:
cardView.setClickable(true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
TypedValue typedValue = new TypedValue();
getContext().getTheme().resolveAttribute(android.R.attr.selectableItemBackground, typedValue, true);
cardView.setBackgroundResource(typedValue.resourceId);
}
I want to make a customAlertDialog that shows the title, message and button centered, but I cannot make the size of the title and message of my customAlertDialog take the size of the parent
This is what my customAlertDialog currently looks like1
LinearLayout layout = new LinearLayout(context);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setBackgroundColor(Color.RED);
layout.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
final TextView header = new TextView(context);
final TextView body = new TextView(context);
final SpannableString formatHeader = new SpannableString(title);
final StyleSpan negrita = new StyleSpan(android.graphics.Typeface.BOLD);
formatHeader.setSpan(negrita,0, title.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
header.setText(formatHeader);
header.setGravity(Gravity.CENTER);
header.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 20);
header.setTextColor(Color.BLACK);
body.setPadding(8, 0, 8, 10);
body.setText(message);
body.setGravity(Gravity.CENTER);
body.setPadding(8, 0, 8, 0);
body.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
body.setTextColor(Color.BLACK);
layout.addView(header);
layout.addView(body);
view = layout;
break;
You can change the default LayoutParams of Dialog to make your dialog full screen like this:
Window window = yourDialog.getWindow();
if (window != null) {
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(window.getAttributes());
//This makes the dialog take up the full width
lp.width = WindowManager.LayoutParams.MATCH_PARENT;
lp.height = WindowManager.LayoutParams.MATCH_PARENT;
window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
window.setAttributes(lp);
}
So I am creating headers and input fields programmatically in a loop. As it stands with the following code, all the elements appear bunched together on top of one another:
RelativeLayout mRlayout = (RelativeLayout) findViewById(R.id.checkFieldsLayout);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
Bundle extras = getIntent().getExtras();
List<String> fields = extras.getStringArrayList("checkList");
for (int i = 0; i < fields.size(); i++) {
TextView header = new TextView(this); // Pass it an Activity or Context
header.setText(fields.get(i).toString());
header.setLayoutParams(params);
EditText field = new EditText(this);
field.setLayoutParams(params);
mRlayout.addView(header);
mRlayout.addView(field);
}
How do I programmatically lay out these elements so they match the width of the screen and dock one beneath the other? Thank you!
Try This:
RelativeLayout mRlayout = (RelativeLayout) findViewById(R.id.checkFieldsLayout);
Bundle extras = getIntent().getExtras();
List<String> fields = extras.getStringArrayList("checkList");
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
TextView header1 = new TextView(this); // Pass it an Activity or Context
header.setText(fields.get(0).toString());
header.setLayoutParams(params);
header1.setId(0);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params2.addRule(RelativeLayout.BELOW,0);
EditText field1 = new EditText(this);
field.setLayoutParams(params2);
field1.setId(fields.size());
mRlayout.addView(header);
mRlayout.addView(field);
for (int i = 1; i < fields.size(); i++) {
RelativeLayout.LayoutParams params1 = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params2.addRule(RelativeLayout.BELOW,fields.size()+i -1);
TextView header = new TextView(this); // Pass it an Activity or Context
header.setText(fields.get(i).toString());
header.setId(i);
header.setLayoutParams(params1);
RelativeLayout.LayoutParams params2 = new RelativeLayout.LayoutParams(
RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
params2.addRule(RelativeLayout.BELOW, i);
EditText field = new EditText(this);
field.setLayoutParams(params2);
field.setId(fields.size()+i);
mRlayout.addView(header);
mRlayout.addView(field);
}
I'm trying to create with code, 3 linearlayout with weight. Put them in a linearlayout, and put this last in a RelativeLayout. At the end I use this RelativeLayout in a Spinner (I say this in case is relevant).
The problem is when I try to put the weights, the RelativeLayout I obtain don't display anything (When I create the parameters, if I put WRAP_CONTENT instead 0, then is displayed, but of course ignores the weight).
public RelativeLayout createRL (final object objectSel, boolean opcion)
{
if(opcion)
{
objectSel.setTimes(1);
}
RelativeLayout rl = new RelativeLayout(this);
LinearLayout llayout = new LinearLayout(this);
llayout.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout f0 = new LinearLayout(this);
f0.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout f1 = new LinearLayout(this);
f1.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout f2 = new LinearLayout(this);
f2.setOrientation(LinearLayout.HORIZONTAL);
final TextView t0 = new TextView(this);
final TextView t1 = new TextView(this);
ImageButton ib1 = new ImageButton(this);
ImageButton ib2 = new ImageButton(this);
LinearLayout.LayoutParams param = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
param.setMargins(0, 10, 0, 10);
llayout.setLayoutParams(new ViewGroup.LayoutParams(param));
LinearLayout.LayoutParams param0 = new LinearLayout.LayoutParams(
0,
LinearLayout.LayoutParams.MATCH_PARENT);
param0.weight=0.1f;
f0.setLayoutParams(new ViewGroup.LayoutParams(param0));
LinearLayout.LayoutParams param1 = new LinearLayout.LayoutParams(
0,
LinearLayout.LayoutParams.MATCH_PARENT);
param1.weight=0.7f;
f1.setLayoutParams(new ViewGroup.LayoutParams(param1));
LinearLayout.LayoutParams param2 = new LinearLayout.LayoutParams(
0,
LinearLayout.LayoutParams.MATCH_PARENT);
param2.weight=0.2f;
f2.setLayoutParams(new ViewGroup.LayoutParams(param2));
t0.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
t0.setTypeface(null,Typeface.BOLD);
LinearLayout.LayoutParams param3 = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
param2.weight=1.0f;
t1.setLayoutParams(new ViewGroup.LayoutParams(param3));
t1.setTextSize(TypedValue.COMPLEX_UNIT_SP, 16);
LinearLayout.LayoutParams param4 = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT,1.0f);
ib1.setLayoutParams(new ViewGroup.LayoutParams(param4));
ib1.setBackgroundResource(R.drawable.boton_mas_xml);
LinearLayout.LayoutParams param5 = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT,1.0f);
ib2.setLayoutParams(new ViewGroup.LayoutParams(param5));
ib2.setBackgroundResource(R.drawable.boton_menos_xml);
f0.setGravity(Gravity.CENTER_VERTICAL);
f1.setGravity(Gravity.CENTER_VERTICAL);
f2.setGravity(Gravity.RIGHT);
t0.setText(Integer.toString(objectSel.getTimes())+" ");
t1.setText(objectSel.getNombre());
f0.addView(t0);
f1.addView(t1);
f2.addView(ib1);
f2.addView(ib2);
llayout.addView(f0);
llayout.addView(f1);
llayout.addView(f2);
rl.setPadding(0, 0, 1, 3);
rl.addView(llayout);
return rl;
}
For linear layous you need to use LinearLayout.LayoutParams object.
MATCH_PARENT property breaks weight. Basicly use 0px fixed size to avoid calculations.
String[] textArray={"one","two","asdasasdf asdf dsdaa"};
int length=textArray.length;
RelativeLayout layout = new RelativeLayout(this);
RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
for(int i=0;i<length;i++){
TextView tv=new TextView(getApplicationContext());
tv.setText(textArray[i]);
relativeParams.addRule(RelativeLayout.BELOW, tv.getId());
layout.addView(tv, relativeParams);
}
I need to do something like that.. so it would display as
one
two
asdfasdfsomething
on the screen..
If it's not important to use a RelativeLayout, you could use a LinearLayout, and do this:
LinearLayout linearLayout = new LinearLayout(this);
linearLayout.setOrientation(LinearLayout.VERTICAL);
Doing this allows you to avoid the addRule method you've tried. You can simply use addView() to add new TextViews.
Complete code:
String[] textArray = {"One", "Two", "Three", "Four"};
LinearLayout linearLayout = new LinearLayout(this);
setContentView(linearLayout);
linearLayout.setOrientation(LinearLayout.VERTICAL);
for( int i = 0; i < textArray.length; i++ )
{
TextView textView = new TextView(this);
textView.setText(textArray[i]);
linearLayout.addView(textView);
}
Try this code:
final String[] str = {"one","two","three","asdfgf"};
final RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);
final TextView[] tv = new TextView[10];
for (int i=0; i<str.length; i++)
{
tv[i] = new TextView(this);
RelativeLayout.LayoutParams params=new RelativeLayout.LayoutParams
((int)LayoutParams.WRAP_CONTENT,(int)LayoutParams.WRAP_CONTENT);
params.leftMargin = 50;
params.topMargin = i*50;
tv[i].setText(str[i]);
tv[i].setTextSize((float) 20);
tv[i].setPadding(20, 50, 20, 50);
tv[i].setLayoutParams(params);
rl.addView(tv[i]);
}
public View recentView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Create a relative layout and add a button
relativeLayout = new RelativeLayout(this);
btn = new Button(this);
btn.setId((int)System.currentTimeMillis());
recentView = btn;
btn.setText("Click me");
relativeLayout.addView(btn);
setContentView(relativeLayout);
btn.setOnClickListener(new View.OnClickListener() {
#Overr ide
public void onClick(View view) {
//Create a textView, set a random ID and position it below the most recently added view
textView = new TextView(ActivityName.this);
textView.setId((int)System.currentTimeMillis());
layoutParams = new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
layoutParams.addRule(RelativeLayout.BELOW, recentView.getId());
textView.setText("Time: "+System.currentTimeMillis());
relativeLayout.addView(textView, layoutParams);
recentView = textView;
}
});
}
This can be modified to display each element of a String array in different TextViews.
You're not assigning any id to the text view, but you're using tv.getId() to pass it to the addRule method as a parameter. Try to set a unique id via tv.setId(int).
You could also use the LinearLayout with vertical orientation, that might be easier actually. I prefer LinearLayout over RelativeLayouts if not necessary otherwise.