Android custom compound views, how to re-use attributes?

Question

Hello I made this compound view that contains a text view (to display error or advice) and a edit text (for input)

 <TextView android:id="@+id/guidanceOrError" android:gravity="center" android:padding="10dp" android:text="Please input 6 characters and 1 number" android:layout_marginBottom="10dp" android:background="@drawable/input_guidance_background" android:layout_width="match_parent" android:layout_height="wrap_content" /> <EditText android:id="@+id/inputField" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@drawable/rectangle_border" android:padding="@dimen/login_editText_padding" tools:hint="@string/user_name"/> </merge>

And this is me using it in an activity layout

 <com.ersen.test.widgets.ValidationInputField android:id="@+id/password" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="@dimen/login_editText_top_margin" android:hint="@string/password" android:inputType="textPassword" />

My problem is that attributes like hint and inputType are being ignored. This is because in my init(AttributeSet attrs) method I am not getting the attributes out

 if(attrs != null){ TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.???); a.recycle(); }

My question is how can I use attributes that already exist? I do not want to re-create them

Please help me and thanks for reading

Edit 1 My compound view extends LinearLayout

marcerv · Accepted Answer · 2016-04-22 10:08:00Z

Guess you're talking about a CustomView.

However you should declare-styleable in attrs.xml and use it like this:

<?xml version="1.0" encoding="utf-8"?> <resources> <declare-styleable name="ValidationInputField"> <attr name="android:hint"/> <attr name="android:inputType"/> </declare-styleable> </resources>

So, edit your init method like this:

 if(attrs != null){ TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.ValidationInputField); String hint = a.getString(R.styleable.ValidationInputField_android_hint); int inputType = a.getInt(R.styleable.ValidationInputField_android_inputType,0); // set these two values in your EditText programmatically EditText editText = (EditText) findViewById(R.id.inputField); editText.setHint(hint); editText.setInputType(inputType); a.recycle(); }

Collectives™ on Stack Overflow

Android custom compound views, how to re-use attributes?

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related