A simple example:
Dialog d=new Dialog(Activity.this);
LinearLayout linearLayout=new LinearLayout(Activity.this);
TextView textview1=new TextView(Activity.this);
TextView textview2=new TextView(Activity.this);
TextView textview3=new TextView(Activity.this);
TextView textview4=new TextView(Activity.this);
......
linearLayout.addView(textview1);
linearLayout.addView(textview2);
linearLayout.addView(textview3);
linearLayout.addView(textview4);
.....
d.setContentView(linearLayout);
d.show();
I just use Copy&Paste and change the 1, 2, 3, 4, ... at the end of the view-names, but if there is an OnClickListener and it opens a new dialog after click (and so on), I get huge classes which cointains only copy&paste-code. Is there a better way to do this?
what about an array?
Dialog d=new Dialog(Activity.this);
LinearLayout linearLayout=new LinearLayout(Activity.this);
int n=5;
TextView[] text_views = new TextView[n];
for(TextView text_view : text_views)
{
text_view=new TextView(Activity.this);
linearLayout.addView(text_view);
}
d.setContentView(linearLayout);
d.show();
Related
How can we create a button with a command to create an other object on Android ?
i mean, i press the button on the app and it create in the layout, a new object, for exemple a textView.
how could i proceed ?
thanks !
This is a way:
First you defined into your xml file a layout parent for your TextView and get it in your code:
final LinearLayout parentView = (LinearLayout) findViewById(R.id.parent_view_id);
Then you define create your TextView for example:
final TextView textView = new TextView(context);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.MATCH_PARENT
); // set height and width
textView.setMargins(left, top, right, bottom); // set margin if necessary
textView.setLayoutParams(layoutParams);
and in your listener :
myButton.setOnClickListener(new View.OnClickListener() {
#Override public void onClick(View view) {
parentView.addView(textView);
}
});
Hope this helps.
Sorry for my english.
first of all create a click listener on your button
button.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
}
}
and then this with add a new textview into your target layout
TextView tv = new TextView(this);
tv.setText("hello word!");
tv.setTextSize(18);
tv.setTextColor(Color.BLACK);
tv.setClickable(true);
tv.setPadding(0, 10, 0, 0);
tv.setGravity(Gravity.CENTER);
mainLayout.addView(tv);
in this ex mainLayout is the view that you want to add new object like textview, ....
I want to dynamically set the layout. I get a question (String type) as shown below :
Enter any two colors -------- and ---------
So using this string I have to create the view. Here the '---------' must be an EditText and the rest of the string can be a TextView. The blanks, i.e, EditText must appear inline as it appears in the question string. I am new to Android any suggestions would be helpful.
use this class for creating your dynamic views.may be it will help you.
public class MainActivity extends Activity {
LinearLayout l1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
l1=(LinearLayout)findViewById(R.id.linear_layout);
LinearLayout layout=new LinearLayout(this);
layout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
layout.setOrientation(LinearLayout.HORIZONTAL);
TextView text1=new TextView(this);
text1.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
text1.setText("Enter any two colors");
EditText edt1=new EditText(this);
edt1.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
edt1.setHint("COLOR1");
TextView text2=new TextView(this);
text2.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
text2.setText("and");
EditText edt2=new EditText(this);
edt2.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
edt2.setHint("COLOR2");
layout.addView(text1);
layout.addView(edt1);
layout.addView(text2);
layout.addView(edt2);
l1.addView(layout);
}
}
I have created edittext and textview without using xml attributes i have defined in java file only but i am unable get values entered in edittext how to get values.i have 2 edittexts if user enters the values i should add the values
public class JavacodeActivity extends Activity {
LinearLayout layout;
TextView view;
EditText edit;
Button btn;
EditText edit1;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
layout=new LinearLayout(this);
layout.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.FILL_PARENT));
layout.setOrientation(LinearLayout.VERTICAL);
view=new TextView(this);
view.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
view.setText("enter the value");
view.setGravity(Gravity.CENTER);
view.setTextColor(Color.BLUE);
view.setTextSize(20);
layout.addView(view);
edit1=new EditText(this);
edit1.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
edit1.setHint("enter the number");
edit1.setGravity(Gravity.CENTER);
edit1.setTextColor(Color.RED);
edit1.setTextSize(20);
edit1.setInputType(InputType.TYPE_CLASS_NUMBER);
layout.addView(edit1);
btn=new Button(this);
btn.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
btn.setText("add");
btn.setGravity(Gravity.CENTER_HORIZONTAL);
btn.setTextColor(Color.GREEN);
btn.setTextSize(20);
layout.addView(btn);
view=new TextView(this);
view.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
view.setText("addition of values");
view.setGravity(Gravity.CENTER);
view.setTextColor(Color.BLUE);
view.setTextSize(20);
layout.addView(view);
I don't know the attribute to retrieve values from edittext if the code is java I am unable to retrieve values. Please help me.
I don't know the attribute to retrieve values from edittext if the code is java I am unable to retrieve values
Read your EditText like any other EditText:
String text = edit.getText().toString();
I'm trying to add a TextView each time a button is pressed. But the thing is i want it to be added as in sms app.
The first time I click thebutton the TextView will be at the left of the screen. The next time the button is clicked the newly created TextView should be at the right side.
I tried with the following code, but it didn't work.
public void sendMessage(View view){
EditText editText=(EditText)findViewById(R.id.edit_message);
String message=editText.getText().toString();
LinearLayout layout=(LinearLayout)findViewById(R.id.layout01);
TextView text=new TextView(this);
text.setText(message);
text.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
layout.setOrientation(LinearLayout.VERTICAL);
if(flag){
text.setGravity(Gravity.LEFT);
}
else
text.setGravity(Gravity.RIGHT);
flag=!flag;
layout.addView(text);
}
'flag' is of boolean type which is declared at the beginning of the class.
EDIT -
Is it possible that i create two more layouts(one for displaying TextView on left and the other to display on right). But I don't know how to use different layouts in the same screen.
Thanks for your help
public void sendMessage(View view){
EditText editText=(EditText)findViewById(R.id.edit_message);
String message=editText.getText().toString();
LinearLayout layout=(LinearLayout)findViewById(R.id.layout01);
TextView text=new TextView(this);
text.setText(message);
text.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT));
layout.setOrientation(LinearLayout.VERTICAL);
if(flag){
text.setGravity(Gravity.LEFT);
flag=!flag;
}
else
{
text.setGravity(Gravity.RIGHT);
flag=!flag;
}
layout.addView(text);
}
I want to add edittext dynamically to the android display. I want to make something like in the android contacts where you can dynamically add fields and remove them if you dont need them.
Thank you for your help
See Everything dynamically
TextView tv=new TextView(this);
tv.setText("TaskID");
TextView tv1=new TextView(this);
task=new EditText(this);
task.setMaxWidth(100);
task.setMinHeight(100);
tv1.setText("Task");
id=new EditText(this);
id.setMaxHeight(10);
TextView tv2=new TextView(this);
name=new EditText(this);
name.setMaxHeight(1);
tv2.setText("Name");
LinearLayout l=new LinearLayout(this);
l.setOrientation(LinearLayout.VERTICAL);
l.setLayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
setContentView(l);
l.addView(tv);
l.addView(id);
l.addView(tv1);
l.addView(task);
l.addView(tv2);