when selected add border shape for textView and editText ,

问题

I want to create a border shape for TextView and EditText, and show it when a view is selected.

Just like in this picture.

回答1:

You should use drawable selector to achieve your UI.

First create a background_edit_text_default.xml which is the background of EditText when it is not selected by users.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <stroke
        android:width="1dp"
        android:color="#333D46" />

    <padding
        android:bottom="10dp"
        android:left="10dp"
        android:right="10dp"
        android:top="10dp" />
</shape>

Then create a background_edit_text_selected.xml which is the background of EditText when it is selected by users.

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <stroke
        android:width="1dp"
        android:color="#EDB90E" />

    <padding
        android:bottom="10dp"
        android:left="10dp"
        android:right="10dp"
        android:top="10dp" />
</shape>

Next create a background_edit_text.xml which will be used as background of the EditText.

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/background_edit_text_default" android:state_focused="false" />
    <item android:drawable="@drawable/background_edit_text_selected" android:state_focused="true" />

</selector>

Finally set background_edit_text.xml as background of your EditText in your layout file, such as activity_main.

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/conteiner"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_margin="20dp"
    android:orientation="vertical">

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/background_edit_text" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="10dp" />

    <EditText
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@drawable/background_edit_text" />

</LinearLayout>

You're done and no need to add anything in code.

回答2:

Try this way

MainActivity

public class MainActivity extends AppCompatActivity {

    EditText edtEmail, edtPassword;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        edtEmail = findViewById(R.id.edtEmail);
        edtPassword = findViewById(R.id.edtPassword);

        edtEmail.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus)
                    edtEmail.setBackground(ContextCompat.getDrawable(MainActivity.this, R.drawable.edt_focus_bg));
                else
                    edtEmail.setBackground(ContextCompat.getDrawable(MainActivity.this, R.drawable.edt_unfocus_bg));
            }
        });

        edtPassword.setOnFocusChangeListener(new View.OnFocusChangeListener() {
            public void onFocusChange(View v, boolean hasFocus) {
                if (hasFocus)
                    edtPassword.setBackground(ContextCompat.getDrawable(MainActivity.this, R.drawable.edt_focus_bg));
                else
                    edtPassword.setBackground(ContextCompat.getDrawable(MainActivity.this, R.drawable.edt_unfocus_bg));
            }
        });


    }

}

layout.activity_main

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimary"
    android:orientation="vertical"
    tools:context=".FirstFragment">


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:text="Email"
        android:textColor="#FFFFFF" />

    <EditText
        android:id="@+id/edtEmail"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:layout_marginTop="5dp"
        android:layout_marginEnd="10dp"
        android:background="@drawable/edt_focus_bg"
        android:imeOptions="actionNext"
        android:inputType="textEmailAddress" />


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:layout_marginTop="10dp"
        android:text="Password"
        android:textColor="#FFFFFF" />


    <EditText
        android:id="@+id/edtPassword"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:layout_marginTop="5dp"
        android:layout_marginEnd="10dp"
        android:background="@drawable/edt_unfocus_bg"
        android:imeOptions="actionNext"
        android:inputType="textPassword" />


    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="10dp"
        android:layout_marginTop="30dp"
        android:layout_marginEnd="10dp"
        android:background="@drawable/edt_focus_bg"
        android:gravity="center"
        android:text="Login"
        android:textColor="#fae81e" />


</LinearLayout>

drawable/edt_focus_bg

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <stroke
        android:width="1dp"
        android:color="#fae81e" />

    <padding
        android:bottom="10dp"
        android:left="10dp"
        android:right="10dp"
        android:top="10dp" />
</shape>

drawable/edt_unfocus_bg

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <stroke
        android:width="1dp"
        android:color="#333D46" />

    <padding
        android:bottom="10dp"
        android:left="10dp"
        android:right="10dp"
        android:top="10dp" />
</shape>

OUTPUT

https://www.youtube.com/watch?v=OvCqTc_y124

EDIT

if you want to add same effect in your login TextView than follow below steps

Create a tv_text_color.xml in res/color directory like

Create a tv_bg.xml in res/drawable directory like

Sample code for tv_text_color.xml

<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- Focused and not pressed -->
    <item android:state_focused="true"
        android:state_pressed="false"
        android:color="#000000" />
    <!-- Focused and pressed -->
    <item android:state_focused="true"
        android:state_pressed="true"
        android:color="#fae81e" />

    <!-- Unfocused and pressed -->
    <item android:state_focused="false"
        android:state_pressed="true"
        android:color="#fae81e" />

    <!-- Default color -->
    <item android:color="#000000" />
</selector>

Sample code for tv_bg.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/edt_focus_bg" 
        android:state_selected="true"/>
    <item android:drawable="@drawable/edt_focus_bg"
        android:state_pressed="true"/>
    <item android:drawable="@drawable/edt_unfocus_bg"/>

</selector>

Now use like this in your TextView

<TextView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginStart="10dp"
    android:layout_marginTop="30dp"
    android:layout_marginEnd="10dp"
    android:textColor="@color/tv_text_color"
    android:background="@drawable/tv_bg"
    android:clickable="true"
    android:gravity="center"
    android:text="Login"
    />

OUTPUT with textview

https://www.youtube.com/watch?v=Iu898vafXEk

EDIT 2

You can also do the same effect for EditText using selector

Create a edt_selector.xml file in res/drawable directory like below

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:drawable="@drawable/edt_focus_bg"
        android:state_focused="true"/>
    <item android:drawable="@drawable/edt_unfocus_bg"/>

</selector>

Now use in your editext like this

<EditText
    android:id="@+id/edtPassword"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginStart="10dp"
    android:layout_marginTop="5dp"
    android:layout_marginEnd="10dp"
    android:background="@drawable/edt_selector"
    android:imeOptions="actionNext"
    android:inputType="textPassword" />

回答3:

In Drawable create xml file and use this code:

       <shape xmlns:android="http://schemas.android.com/apk/res/android">
       <solid android:color="@android:color/transparent" />
       <corners android:radius="5dp" />
       <stroke
              android:width="3dp"
              android:color="@color/yellow" />
       </shape>

set it to background of EditText after it create another one with android:width="0dp" and when user clicked, you can simply change them.

.....

editText1.setOnClickListener{
  editText1.setBackground(shape1);
  editText2.setBackground(shape0);
}
editText2.setOnClickListener{
  editText1.setBackground(shape0);
  editText2.setBackground(shape1);

}

you can't copy and execute this code but this is a guide for you .!

回答4:

add this to your color folder:

selector:

<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:color="your_border_color"/>
<item android:color="@android:color/transparent"/>
</selector>

add this to your drawable folder:

background:

<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="back_ground_color" />
<corners android:radius="5dp" />
<stroke
    android:width="3dp"
    android:color="@color/selector" />
</shape>

to your edit text:

<EditText>
   android:background="@drawable/background"
</EditText>

来源：https://stackoverflow.com/questions/52353887/when-selected-add-border-shape-for-textview-and-edittext

标签

android

xml

android-layout

shapes