Im creating a app that takes in a string and divides it into words and reprints them while checking if there is a '#' in front of the words. If there is a '#' the color of that word is changed. The problem i am having is the String gets cut if the original String is too long.
any help?
public class MainActivity extends Activity {
String[] parts;
LinearLayout.LayoutParams layoutParams ;
int size;
LinearLayout L;
String s ="This is the test String that is divided #Testing ";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
L=(LinearLayout)findViewById(R.id.ll);
layoutParams= new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
parts = s.split(" ");
size = parts.length;
for(int i=0; i<size;i++)
{
TextView valueTV = new TextView(this);
String d= parts[i] + " ";
valueTV.setText(d);
// valueTV.setLayoutParams(layoutParams);
if(d.charAt(0)=='#')
{
valueTV.setTextColor(Color.CYAN);
}
L.addView(valueTV,layoutParams);
}
}
}
It is because you are having linear layout
and it takes horizontal orientation.
It will display the text views upto your phone edge and after that your data will not be visible.
You need to check the device display width and manually add another layout if the textView's width exceeds the display width.
Refer this link
It will help you resolve your problem.
Related
I'm adding programmatically TextViews in a ViewHolder which is added in a RecyclerView. The problem I'm facing is after it reaches the end of the screen and goes to new line the text is not align from the beginning of the screen.
mHolder.mAuthorsContainer.removeAllViews();
int size = mData.mAuthors.mAuthorsHMap.size(), count = 1;
Typeface typeface = ResourcesCompat.getFont(mContext, R.font.zillaslab_bold);
for(Map.Entry<String, String> entry : mData.mAuthors.mAuthorsHMap.entrySet()) {
String key = entry.getKey();
String value = entry.getValue();
TextView mAuthor_ = new TextView(mContext);
mAuthor_.setTextColor(Color.parseColor("#3100A2"));
mAuthor_.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT));
mAuthor_.setTypeface(typeface);
mAuthor_.setTextSize(TypedValue.COMPLEX_UNIT_SP, CustomPreferences.getInstance(mContext).getmSpArticlePublishSize());
mAuthor_.setLineSpacing(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, CustomPreferences.getInstance(mContext).getmSpArticleTextLineSpacing(), mMetrics), 1.0f);
mAuthor_.setText(value);
mHolder.mAuthorsContainer.addView(mAuthor_);
}
mAuthorsContainer is a LinearLayout and the parent layout is ConstraintLayout, that's all
Tried setLines, setMaxLines, setGravity to left, nothing works so far.
Thanks in advance.
I am creating a Table of buttons, to control a LED Matrix via Bluetooth.
I have found on the web Brian's Video Tutorials and followed his Dynamic Buttons and Images video to implement this.
Here is the code:
public class DrawerMode extends Activity {
private static final int NUMOFCOL = 15;
private static final int NUMOFROW = 8;
Button buttons[][] = new Button[NUMOFROW][NUMOFCOL];
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//Assign content
setContentView(R.layout.activity_draw_mod);
fillTable();
}
private void fillTable() {
TableLayout tableLayout = (TableLayout) findViewById(R.id.drawer_table);
for( int iter_R = 0; iter_R!= NUMOFROW; iter_R++){
TableRow tableRow = new TableRow(this);
tableRow.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.WRAP_CONTENT,TableLayout.LayoutParams.WRAP_CONTENT,1.0f));
tableLayout.addView(tableRow);
for(int iter_C = 0; iter_C != NUMOFCOL; iter_C++){
final int FINAL_COL = iter_C;
final int FINAL_ROW = iter_R;
Button button = new Button(this);
button.setLayoutParams(new TableRow.LayoutParams( TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT, 1.0f));
button.setText("" + iter_C + "," + iter_R);
button.setPadding(0, 0, 0, 0);
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
whenBtnClicked(FINAL_COL, FINAL_ROW);
}
});
tableRow.addView(button);
buttons[iter_R][iter_C] = button;
}
}
}
private void whenBtnClicked(int col, int row) {
//Toast.makeText(this, "Button clicked: " + FINAL_COL + "," + FINAL_ROW, Toast.LENGTH_SHORT).show();
Button button = buttons[row][col];
// Lock Button Sizes:
lockButtonSizes();
int newWidth = button.getWidth();
int newHeight = button.getHeight();
Bitmap originalBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.ic_dark_blue);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(originalBitmap, newWidth, newHeight, true);
Resources resource = getResources();
button.setBackground(new BitmapDrawable(resource, scaledBitmap)); // Change text on button:
button.setText(" ");
}
private void lockButtonSizes(){
for (int row = 0; row < NUMOFROW; row++){
for (int col = 0; col < NUMOFCOL; col++){
Button button = buttons[row][col];
int width = button.getWidth();
button.setMinWidth(width);
button.setMaxWidth(width);
int height = button.getHeight();
button.setMinHeight(height);
button.setMaxHeight(height);
}
}
}
}
It works great, but while testing I have found the following issue.
When I click random buttons it works great:
[img]http://i.imgur.com/OYFJ6zJ.png?1[/img]
But when I complete a row (all elements on row are clicked), and I mean any row it starts to rescale the buttons in the whole table:
[img]http://i.imgur.com/ttAz4U0.png?1[/img]
I was thinking that maybe the LayoutParams of the TableRow should be changed, but not sure about that. What am I missing here?
I think you're right about the layout parameters needing to change. This line
tableRow.setLayoutParams(new TableLayout.LayoutParams(TableLayout.LayoutParams.WRAP_CONTENT,TableLayout.LayoutParams.WRAP_CONTENT,1.0f));
would cause the row's height to shrink in size if no button had displayed text, which seems to be what's happening. The TableLayout.LayoutParams does support setting fixed width/height, which you could sensibly calculate by first getting the device's screen width/height and dividing accordingly.
Or, if that gets to cumbersome, you could set -- though this may be too much of a hack -- the default text in the TextViews in the "unset" buttons with some transparent text (e.g., "1,1") so that the height is the same as a set button. This SO answer answer shows how to make transparent text.
I am certain that this is not a good solution for all cases. But just as I thought, the problem was with
button.setLayoutParams(new TableRow.LayoutParams( TableRow.LayoutParams.MATCH_PARENT, TableRow.LayoutParams.MATCH_PARENT, 1.0f));
If I understand correctly after the entire row was clicked, since the LayoutParams change according to the MATCH_PARENT value, the TableRow rescales the whole row to meet this criteria,since the height of the entire row is the same now. Not sure if it happens exactly this way, but I think this is the case because of my solution.
My work around is to add specific values for the LayoutParams, instead of leaving it the system to figure it out:
button.setLayoutParams(new TableRow.LayoutParams( 75, 50, 1.0f));
I am aware this is not how it should be done. But since I have a deadline to met soon, I can't spend any more time with it. Most likely the correct way to do this is Jason's suggestion to get the screen size and calculate it. You can do this with:
Display display = getWindowManager().getDefaultDisplay(); Point size = new Point();
display.getSize(size);
int width = size.x;
int height = size.y;
The problem is to come up with a correct formula to calculate this values you can pass to the LayoutParam. If anyone can figure this out please do post your solution and I will accept that answer. At this point I accept Jason's suggestion.
I am trying to edit the width of a TextView before it is getting loaded on the screen based on some score value. The requirement is like, based on the relative score value the text view should have width.
I have written the below code in onCreate() method of the activity as below,
{{{
TextView graph = (TextView) findViewById(R.id.predictionScoreGraph);
graph.getViewTreeObserver().addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
int score = 60;
UserData data = UserData.getInstance();
score = data.overallScore();
TextView graph = (TextView) findViewById(R.id.predictionScoreGraph);
int grossWidth = graph.getWidth();
Log.d(TAG, "Existing width of the text view is "
+ grossWidth);
LayoutParams existing = graph.getLayoutParams();
int fillWidth = (grossWidth * score) / 100;
Log.d(TAG, "Modified width is " + fillWidth);
graph.setWidth(fillWidth);
existing.width = fillWidth;
graph.setLayoutParams(existing);
graph.setBackgroundColor(getResources().getColor(
android.R.color.holo_green_light));
graph.getViewTreeObserver()
.removeGlobalOnLayoutListener(this);
}
});
}}}
It works like a Gem!! But when I want to do it for more than one TextView objects, it is not changing the width of the TextView object.
Can somebody please help me on how to change width of multiple TextView objects?
Thanks,
Rather than using a GlobalLayoutListener, try overriding the onMeasure method of the Activity.
I’ve been trying to create a minesweeper game in android, and so far, all has gone accordingly. However, I’m currently stuck on the part where I have to randomly place the mines within the game board.
I’ve tried a few things that I could think of, but none of which worked, except one. However, it doesn’t give me the results that I want. Here is how I am drawing the game board (using a 2D array of buttons).
final Button currentButton = new Button(this);
final int bombState = R.drawable.bomb_state;
final Button[][] buttonArray = new Button[6][6];
final int mine = R.drawable.bomb;
final Random rand = new Random();
final int number = 36;
int button;
int row;
//create new Linear Layout
RelativeLayout linearLayout = new RelativeLayout(this);
//creating the layout Params
LayoutParams linLayoutParam = new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
//set layout background
linearLayout.setBackgroundDrawable(getWallpaper());
//set LinearLayout as a root element of the screen
setContentView(linearLayout, linLayoutParam);
//create a new Table Layout for the game grid
TableLayout mineGrid = new TableLayout(this);
/*
* creates TableRows and Buttons using the for loop
* then add the buttons into the rows and the rows
* into the TableLayout
*/
for(row = 0; row < 6; row++){
//create new Table Row
TableRow currentRow = new TableRow(this);
for(button = 0; button < 6; button++){
//create new Button
for(int id = 0; id < number; id++){
currentButton.setId(id);
}
currentButton.setText(" ");
//storing the buttons into the array of Buttons
buttonArray[row][button] = currentButton;
if(currentButton.isClickable()){
currentButton.setOnClickListener(new OnClickListener() {
/*
* (non-Javadoc)
* #see android.view.View.OnClickListener#onClick(android.view.View)
*/
public void onClick(View v) {
try
{
for(int i = 0; i < 10; i++){
if(rand.nextInt(10) == i){
currentButton.setBackgroundResource(mine);
restart.setBackgroundResource(bombState);
}
}
} catch(Exception e)
{
Toast.makeText(Game.this,e.getMessage() + "Error : ",
Toast.LENGTH_SHORT).show();
}
}
});
}
//store the button into the Table Row
currentRow.addView(currentButton);
}
//add the newly created row into the table
mineGrid.addView(currentRow);
}
linearLayout.addView(score, params3);
linearLayout.addView(mineGrid, params);
}
What the above code gives me, is a 6x6 grid made up of buttons.
And the following is where I’m trying to randomly place n amount of mines within the board.
try
{
for(int i = 0; i < 10; i++){
if(rand.nextInt(10) == i){
currentButton.setBackgroundResource(mine);
restart.setBackgroundResource(bombState);
}
}
}
Unfortunately, this fills the whole board with mines, instead of only placing n amount of mine on the board. I know am missing something when I try to randomly set the mines! Can anyone advise me as to where I’m going wrong and help point me in the right direction?
Please ask me anything for clarification.
Thanks in advance.
You basically, on every click of a button try to place a mine instead placing them when you create buttons. Maybe You could add to a list, id of a buttons which are mines and only check if user has clicked on one of those buttons.
ArrayList<Integer> mines = new ArrayList<Integer>();
.
.
.
currentButton.setText(" ");
if(rand.nextInt(2)==1)
mines.add(currentButton.id);
and in onClick() You check if currentButton.id is in mines list and if it is, display appropriate image.
I'm trying to display a bunch of text on the screen by placing TextViews inside rows of single-line LinearLayouts. Each word is stored in its own separate TextView, and I want to be able to place as many TextViews as will fit on a single LinearLayout line and detect when I've run out of horizontal space so that I can move to the next line.
The problem I'm facing is that I can't seem to find a way to measure the changing layout sizes as I create the display, because I can't get a reference width using getWidth() on the parent layout, and even after I add the TextViews, I can't seem to control the width.
We had a working version before, but it did everything using on hard-coded numbers based on the number of characters in a TextView at a fixed size. I'm trying to extend the app to work with all text and screen sizes. If this needs to be completely overhauled, I understand - I just want to be able to fill up the screen with an indefinite number of lines of text.
An obvious solution would be to just place all the text inside one TextView, but we need to be able to access each Word/Ponctuation object and its attributes through the displayed TextViews.
// layout_row is the current LinearLayout row I'm adding my TextViews to
// layout is the LinearLayout parent of all layout_rows
// text.text_content is a linked list of Word and Ponctuation objects
// each Word and Ponctuation object has a TextView attribute called view
private void display_views() {
if (text != null)
{
boolean prochainLigneSuivante; // if new line is to follow
int widthSoFar = 0;
int layoutWidth = layout_row.getWidth();
for (Object o : text.text_content) {
if (o instanceof Word ) {
Word w = (Word) o;
Object next = text.next(o);
if (noNeedForSpace(w)) {
// by default all TextViews have
// right padding to simulate spaces
w.view.setPadding(0, 0, 0, 0);
}
layout_row.addView(w.view);
widthSoFar += w.view.getWidth();
// Am I out of space?
prochainLigneSuivante = widthSoFar >= layoutWidth;
if(prochainLigneSuivante) {
layout_row.removeView(w.view);
widthSoFar = 0;
layout_row = new LinearLayout(context);
layout_row.setOrientation(LinearLayout.HORIZONTAL);
layout_row.addView(w.view);
layout_row.setBackgroundColor(Color.BLACK);
layout_row.setLayoutParams(new
LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.MATCH_PARENT));
layout.addView(layout_row);
}
}
else if (o instanceof Ponctuation) {
Ponctuation p = (Ponctuation) o;
if (p.text.contains("CR")) {
layout_row = new LinearLayout(context);
layout_row.setOrientation(LinearLayout.HORIZONTAL);
layout_row.setLayoutParams(new
LayoutParams(LayoutParams.WRAP_CONTENT,
LayoutParams.MATCH_PARENT));
widthSoFar = 0;
layout.addView(layout_row);
}
else {
if (p.view.getText().equals(" "))
p.view.setPadding(0, 0, 0, 0);
layout_row.addView(p.view);
if(!p.view.getText().equals(""))
widthSoFar += p.view.getWidth();
}
}
}
}
else {
Log.e("Text", "text est nul");
}
scroll.refreshDrawableState();
transition.startTransition(0);
}