Develop Reference

Hide and show layout on click of dynamic image

I have created a dynamic layout for edittext with add and minus icons. When i click on add, layout should recreated again and in place of add image, minus should shown.Add icon is changed to minus on first click but minus is not changed to plus.When i clicked on minus, sub layout is removed but not able to change icon.
This is my dynamic layout:
public void dLayout(){
count++;
lay_frame = new LinearLayout(this);
lay_frame.setOrientation(LinearLayout.VERTICAL);
lay_frame.setId(count);
for (int i =0; i<numClass; i++){
lay_main = new LinearLayout(this);
lay_uncle = new LinearLayout(this);
lay_cousin = new LinearLayout(this);
lay_main.setOrientation(LinearLayout.VERTICAL);
lay_uncle.setOrientation(LinearLayout.HORIZONTAL);
lay_uncle.setGravity(Gravity.CENTER);
lay_cousin.setOrientation(LinearLayout.HORIZONTAL);
lay_cousin.setGravity(Gravity.CENTER);
txt_uncle = new TextView(this);
txt_uncle.setText("Uncle Name");
txt_uncle.setTextColor(Color.BLACK);
txt_uncle.setPadding(0, 20 , 0, 20);
txt_uncle.setTextSize(14);
txt_cousin = new TextView(this);
txt_cousin.setText("Cousin Name");
txt_cousin.setTextColor(Color.BLACK);
txt_cousin.setPadding(0, 20 , 0, 0);
txt_cousin.setTextSize(14);
img_add = new ImageView(this);
img_add.setImageResource(R.drawable.add01);
img_add.setPadding(8, 0, 0 ,0);
img_minus = new ImageView(this);
img_minus.setImageResource(R.drawable.minus);
img_minus.setPadding(8, 0, 0 ,0);
img_minus.setVisibility(View.GONE);
img_cousinadd = new ImageView(this);
img_cousinadd.setImageResource(R.drawable.add01);
img_cousinadd.setPadding(8, 0, 0 ,0);
img_cousinminus = new ImageView(this);
img_cousinminus.setImageResource(R.drawable.minus);
img_cousinminus.setPadding(8, 0, 0 ,0);
ed_uncle = new EditText(this);
ed_uncle.setInputType(InputType.TYPE_CLASS_TEXT);
ed_uncle.setPadding(12, 8 ,8 ,8);
ed_uncle.setTextColor(Color.BLACK);
ed_uncle.setTextSize(14);
ed_uncle.setBackgroundResource(R.drawable.border);
ed_cousin = new EditText(this);
ed_cousin.setInputType(InputType.TYPE_CLASS_TEXT);
ed_cousin.setPadding(12, 8 ,8 ,8);
ed_cousin.setTextColor(Color.BLACK);
ed_cousin.setTextSize(14);
ed_cousin.setBackgroundResource(R.drawable.border);
final LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, 80, 8.5f
);
params.setMargins(80, 0, 0, 0);
ed_cousin.setLayoutParams(params);
txt_cousin.setLayoutParams(params);
LinearLayout.LayoutParams params1 = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, 80, 8.5f
);
params.setMargins(40, 0, 0, 0);
ed_uncle.setLayoutParams(params1);
img_add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
img_add.setVisibility(View.GONE);
img_minus.setVisibility(View.VISIBLE);
dLayout();
}
});
img_minus.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (count > 0) {
final LinearLayout temp = (LinearLayout) mainLayout.findViewById(count);
mainLayout.removeView(temp);
count--;
}
img_minus.setVisibility(View.GONE);
img_add.setVisibility(View.VISIBLE);
}
});
lay_main.addView(txt_uncle);
lay_uncle.addView(ed_uncle);
lay_uncle.addView(img_add);
lay_uncle.addView(img_minus);
lay_main.addView(lay_uncle);
lay_main.addView(txt_cousin);
lay_cousin.addView(ed_cousin);
lay_cousin.addView(img_cousinadd);
lay_main.addView(lay_cousin);
lay_frame.addView(lay_main);
}
mainLayout.addView(lay_frame);
}

Change your btn add click logic to this
img_add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
dLayout();
img_add.setVisibility(View.GONE);
img_minus.setVisibility(View.VISIBLE);
}
});
Because after setting visibility again your setting the minus button visibility gone in the dLayout(); which means the property is overridden by next value

In onClick listener for minus button,lay_frame LinearLayout been removed from the main layout. Minus button is child of lay_frame layout, which is no more attached to view tree. If you are removing the view on click on minus button,changing the icon from minus to plus image doesn't make any sense.

Edittext hidden by softkeyboard

i have created a layout programmatically and set it into secontentview within oncreate i am create chat layout using simple edittext and a send image button right from edittext whenever user click on edittext suddenly hide by softkeyboard i tried all option which is required to mention in menifest like adjustPan or screenresize etc but no effect the edittext still hidden by keyboard
here is my layout code that contain the edittext
private LinearLayout getTextChatViewTest() {
// MainActivity.this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
// LibraryMainActivity.this.getActionBar().show();
LinearLayout linWrapperLayout;
LinearLayout.LayoutParams linWrapperLayoutParams;
LinearLayout linHeaderLayout;
LinearLayout.LayoutParams linHeaderParams;
TextView txtHeaderText;
linWrapperLayout = new LinearLayout(MainActivity.this);
linWrapperLayout.setOrientation(LinearLayout.VERTICAL);
linWrapperLayoutParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT);
linWrapperLayout.setLayoutParams(linWrapperLayoutParams);
linWrapperLayout.setBackgroundColor(Color.parseColor("#ffffff"));
linHeaderLayout = new LinearLayout(MainActivity.this);
linHeaderLayout.setBackgroundColor(Color.parseColor("#E3E9F3"));
linHeaderLayout.setPadding(pixToDp(10), pixToDp(5), pixToDp(10), pixToDp(5));
linHeaderParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
linHeaderLayout.setLayoutParams(linHeaderParams);
txtHeaderText = new TextView(MainActivity.this);
txtHeaderText.setTextSize(TypedValue.COMPLEX_UNIT_SP, 24);
txtHeaderText.setPadding(pixToDp(5), pixToDp(10), pixToDp(10), pixToDp(10));
txtHeaderText.setTextColor(Color.parseColor("#004A8F"));
linHeaderLayout.addView(txtHeaderText);
txtHeaderText.setText("Text Chat");
RelativeLayout rel = new RelativeLayout(MainActivity.this);
rel.setBackgroundColor(Color.parseColor("#ffffff"));
RelativeLayout.LayoutParams relPArams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.MATCH_PARENT);
rel.setLayoutParams(relPArams);
linWrapperLayout.addView(rel);
rel.addView(linHeaderLayout);
txtChatArea = new TextView(MainActivity.this);
txtChatArea.setId(011);
txtChatArea.setBackgroundColor(Color.parseColor("#ffffff"));
txtChatArea.setGravity(Gravity.BOTTOM);
int scroll_amount = (int) (txtChatArea.getLineCount() * txtChatArea.getLineHeight()) - (txtChatArea.getBottom() - txtChatArea.getTop());
txtChatArea.setLinksClickable(true);
txtChatArea.setAutoLinkMask(Linkify.WEB_URLS);
txtChatArea.setText("Anything");
txtChatArea.scrollTo(0, scroll_amount);
txtChatArea.setTextSize(TypedValue.COMPLEX_UNIT_SP, 17);
txtChatArea.setScrollY(0);
txtChatArea.setMovementMethod(new ScrollingMovementMethod());
/** for allowing copy from text chat area */
txtChatArea.setOnLongClickListener(new OnLongClickListener() {
#Override
public boolean onLongClick(View v) {
txtChatArea.setCursorVisible(true);
return true;
}
});
// Button btn = new Button (this);
android.view.Display display = ((android.view.WindowManager)getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
// btn.setHeight((int)(display.getHeight()*0.68));
int height = display.getHeight();
RelativeLayout.LayoutParams relImageParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
(MainActivity.getPixelHeight(MainActivity.this))/2+60);
relImageParams.setMargins(pixToDp(15), pixToDp(100), pixToDp(15), 0);
relImageParams.addRule(RelativeLayout.BELOW, 111);
txtChatArea.setLayoutParams(relImageParams);
rel.addView(txtChatArea);
/* The following section was copied from incoming call view */
relIncomingBottomLayout = new RelativeLayout(MainActivity.this);
relIncomingBottomLayoutParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
RelativeLayout.LayoutParams.WRAP_CONTENT);
relIncomingBottomLayoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
//relIncomingBottomLayoutParams.addRule(RelativeLayout.BELOW, 011);
relIncomingBottomLayoutParams.setMargins(pixToDp(10), 0, pixToDp(10), pixToDp(10));
relIncomingBottomLayout.setLayoutParams(relIncomingBottomLayoutParams);
rel.addView(relIncomingBottomLayout);
/* Now add a linearlayout with vertical orientation, which will contain two linearlayouts with horizontal orientation */
LinearLayout linBottomHolder = new LinearLayout(MainActivity.this);
linBottomHolder.setOrientation(LinearLayout.VERTICAL);
LinearLayout.LayoutParams linHolderParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
linBottomHolder.setLayoutParams(linHolderParams);
relIncomingBottomLayout.addView(linBottomHolder);
/* an warning view on characters left for end users */
txtWarning = new TextView(MainActivity.this);
txtWarning.setBackgroundColor(Color.parseColor("#ffffff"));
txtWarning.setTextSize(TypedValue.COMPLEX_UNIT_SP, 13);
txtWarning.setText("150 characters left");
txtWarning.setTextColor(Color.GRAY);
linBottomHolder.addView(txtWarning);
/* Now add the first linear layout to contain an edittext to get message and an imageview */
LinearLayout linWriteHolder = new LinearLayout(MainActivity.this);
linWriteHolder.setOrientation(LinearLayout.HORIZONTAL);
LinearLayout.LayoutParams linWriteHolderPArams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f);
linWriteHolder.setLayoutParams(linWriteHolderPArams);
linBottomHolder.addView(linWriteHolder);
/* Now add an edittext and an imageview inside this linearlayout */
GradientDrawable gd = new GradientDrawable();
gd.setStroke(2, Color.parseColor("#E3E9F3"));
gd.setShape(GradientDrawable.RECTANGLE);
gd.setColor(Color.WHITE);
gd.setCornerRadius(5);
edtWriteMesage = new EditText(MainActivity.this);
edtWriteMesage.setHint("Type text here");
edtWriteMesage.setBackgroundColor(Color.parseColor("#ffffff"));
edtWriteMesage.setBackground(gd);
edtWriteMesage.setSingleLine(true);
/** filtering inputs */
InputFilter[] filters = new InputFilter[1];
filters[0] = new InputFilter.LengthFilter(150);
edtWriteMesage.setFilters(filters); /** now a maximum of 150 characters can be taken as input */
edtWriteMesage.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
int currentLength = edtWriteMesage.getText().toString().length();
int remainingLength = 150 - currentLength;
if(remainingLength <= 15){
txtWarning.setTextColor(Color.RED);
}else{
txtWarning.setTextColor(Color.GRAY);
}
txtWarning.setText(""+remainingLength + " characters left");
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void afterTextChanged(Editable s) {
}
});
LinearLayout.LayoutParams linWriteParams = new LinearLayout.LayoutParams(0,
ViewGroup.LayoutParams.WRAP_CONTENT, 0.9f);
linWriteParams.gravity = Gravity.CENTER_VERTICAL;
edtWriteMesage.setLayoutParams(linWriteParams);
linWriteHolder.addView(edtWriteMesage);
/* Now add an imageview with an arrow in it by the edittext's side */
imgSendArrow = new ImageView(MainActivity.this);
byte[] sendArrow = Base64.decode(SecondImageStore.send, Base64.DEFAULT);
//byte[] sendArrow = Base64.decode(SecondImageStore.papersend, Base64.DEFAULT);
imgSendArrow.setImageBitmap(BitmapFactory.decodeByteArray(sendArrow, 0, sendArrow.length));
LinearLayout.LayoutParams linSendParams = new LinearLayout.LayoutParams(0,
ViewGroup.LayoutParams.WRAP_CONTENT, 0.1f);
linSendParams.gravity = Gravity.CENTER;
linSendParams.setMargins(pxToDp(3), 0, pxToDp(2), 0);
imgSendArrow.setLayoutParams(linSendParams);
linWriteHolder.addView(imgSendArrow);
/* Now add the Second relative layout to contain two buttons */
LinearLayout linTextChatButtonHolder = new LinearLayout(MainActivity.this);
LinearLayout.LayoutParams linTextChatButtonHolderParams = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.WRAP_CONTENT, 1.0f);
linTextChatButtonHolderParams.setMargins(0, pixToDp(10), 0, 0);
linTextChatButtonHolder.setLayoutParams(linTextChatButtonHolderParams);
linBottomHolder.addView(linTextChatButtonHolder);
/* Button to end ongoing conference */
btnTextChatEndCall = new Button(MainActivity.this);
btnTextChatEndCall.setText("Call Held");
btnTextChatEndCall.setBackgroundColor(Color.parseColor("#C11E0F"));
btnTextChatEndCall.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
btnTextChatEndCall.setGravity(Gravity.CENTER);
btnTextChatEndCall.setTextColor(Color.parseColor("#ffffff"));
LinearLayout.LayoutParams linTextChatEndCallParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT, 0.5f);
linTextChatEndCallParams.setMargins(0, pixToDp(10), 0, 0);
btnTextChatEndCall.setLayoutParams(linTextChatEndCallParams);
linTextChatButtonHolder.addView(btnTextChatEndCall);
/* Button to display menu in chat mode */
btnTextChatMenu = new Button(MainActivity.this);
btnTextChatMenu.setText("Menu");
btnTextChatMenu.setGravity(Gravity.CENTER);
btnTextChatMenu.setBackgroundColor(Color.parseColor("#014A8E"));
btnTextChatMenu.setTextSize(TypedValue.COMPLEX_UNIT_SP, 20);
btnTextChatMenu.setTextColor(Color.parseColor("#ffffff"));
LinearLayout.LayoutParams linTextChatMenuParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT, 0.5f);
linTextChatMenuParams.setMargins(pixToDp(10), pixToDp(10), 0, 0);
btnTextChatMenu.setLayoutParams(linTextChatMenuParams);
linTextChatButtonHolder.addView(btnTextChatMenu);
btnTextChatEndCall.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
try{
}catch(Exception e){
e.printStackTrace();
}
}
});
edtWriteMesage.setOnEditorActionListener(new OnEditorActionListener() {
#Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
int result = actionId & EditorInfo.IME_MASK_ACTION;
switch (result) {
case EditorInfo.IME_ACTION_DONE:
break;
case EditorInfo.IME_ACTION_NEXT:
break;
}
return false;
}
});
return linWrapperLayout;
// setContentView(linWrapperLayout);
}

Try on this way to hide keyboard
// Check if no view has focus:
View view = this.getCurrentFocus();
if (view != null) {
InputMethodManager imm =(InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}

In your Manifest.xml add this to you activity
<activity
android:windowSoftInputMode="adjustResize|stateHidden" ... >
...
</activity>
for Click here for more details about handling Input Methods

i have just remove getWindow().setFlags(
WindowManager.LayoutParams.FLAG_FULLSCREEN
| WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS,
WindowManager.LayoutParams.FLAG_FULLSCREEN
| WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); after that edittext comming below the edittext whenever soft keyboard appear

Object chang size(android)

Sorry for my English. I have a dynamically created TextView and ImageView, they are added to the LinearLayout. But when I start to write a TextView that it changes its size and thus reduces the ImageView. The picture below is an example of how the size of the
final LinearLayout row = new LinearLayout(this);
row.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
row.setOrientation(LinearLayout.HORIZONTAL);
//params editTExt
android.widget.LinearLayout.LayoutParams paramsEtext = new android.widget.LinearLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 1f);
paramsEtext.gravity = Gravity.LEFT;
//params image View
LinearLayout.LayoutParams paramsImageView = new LinearLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0.25f);
paramsImageView.gravity = Gravity.CENTER_VERTICAL;
//create edit text
final EditText etext = new EditText(QuicklyCreateQwestions.this);
etext.setLayoutParams(paramsEtext);
//add et in ArrayList
et.add(etext);
//set text in textView
etext.setText(qwestions.get(i).toString());
row.addView(etext);
//add ImageView in edit text
final ImageView imV = new ImageView(this);
imV.setLayoutParams(paramsImageView);
imV.setImageResource(R.drawable.t_del_poll);
imV.setId(i);
//set button in layaut
row.addView(imV);
//action if button click
imV.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
row.removeView(etext);
row.removeView(imV);
}
});
//add editText and button in layaut
LinearLayoutTextQwestions.addView(row);

How to resize the button progmmatically in android

I want Ui to be done programmatically ,i am using simple button,and it occupies the full width of screen,how should i be resizing the button width.
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_main);
TextView label = new TextView(this);
label.setText("Hello");
label.setTextSize(20);
Button but = new Button(this);
but.setText("Click Me");
but.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Perform action on click
System.out.println("Button Clicked");
Intent myIntent = new Intent(v.getContext(), SecondActivity.class);
startActivityForResult(myIntent, 0);
}
});
LinearLayout ll = new LinearLayout(this);
ll.setOrientation(LinearLayout.VERTICAL);
ll.addView(label);
ll.addView(but);
setContentView(ll);
}
Is there any separate layout to which i should be adding this button?Any tutorials regarding deeping understanding of layout programmatically will be useful.
Regards
Rakesh Shankar.P

check this for Resize Button programmatically using Java Code
(or)
final float scale = getResources().getDisplayMetrics().density;
int heightDp = (int) (33 * scale + 0.5f);
ViewGroup.LayoutParams params = b.getLayoutParams();//b========>ur button
params.height = heightDp;
b.setLayoutParams(params);
b.requestLayout();

You can add params to button
LinearLayout.LayoutParams lp_l = new LinearLayout.LayoutParams(
(LayoutParams.WRAP_CONTENT), (LayoutParams.WRAP_CONTENT));
but.setLayoutParams(rel_lp);

See this link for resize Button Programatically http://android-coding.blogspot.in/2011/05/resize-button-programmatically-using.html

LayoutParams params =new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT);
LinearLayout layout = new LinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
Button btn = new Button(this);
btn.setText("login");
btn.setLayoutParams(params);
layout.addView(btn);

ClickEvent on animated ImageView fires only at the start position

Android:
I have an animated ImageView with an onClickEvent registered. I want the ImageView to move around the screen and then click on the ImageView. But when I click on the moving imageView, nothing happens. When I click at the position of the screen, where the imageView was at the beginning, the clickEvent is fired. So the real position of the ImageView does not move with the animation. Has anybody an idea how to get the event when someone clicks the image which is moving on the screen?
My code so far:
public class OnePlayer extends Activity {
private ImageView imageView;
private int points;
private TextView timeTextView;
private TextView pointsTextView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.oneplayer);
timeTextView = (TextView) findViewById(R.id.time);
timeTextView.setText("01:00");
points = 0;
pointsTextView = (TextView) findViewById(R.id.points);
pointsTextView.setText("0/500");
Animation animation = new TranslateAnimation(0, 100, 0, 200);
animation.setDuration(2000);
animation.setRepeatCount(-1);
animation.initialize(10, 10, 10, 10);
imageView = new ImageView(this);
imageView.setImageResource(R.drawable.plus10);
imageView.setAdjustViewBounds(true);
imageView.setLayoutParams(new RelativeLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
imageView.startAnimation(animation);
imageView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
v.clearAnimation();
v.setVisibility(View.GONE);
points += 10;
pointsTextView.setText(points + "/500");
}
});
RelativeLayout layout = (RelativeLayout) findViewById(R.id.oneplayergame);
layout.addView(imageView);
}
}

I have shared my solution here. Hope this helps.