Android - border for button

2019-01-03 08:26发布

How do I add a border to a button? Is it possible to do this without resorting to use of images?

8条回答
闹够了就滚
2楼-- · 2019-01-03 08:31

Create button_border.xml file in your drawable folder.

res/drawable/button_border.xml

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

    <solid android:color="#FFDA8200" />

    <stroke
        android:width="3dp"
        android:color="#FFFF4917" />

</shape>

And add button to your XML activity layout and set background android:background="@drawable/button_border".

        <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/button_border"
                android:text="Button Border" />
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爷、活的狠高调
3楼-- · 2019-01-03 08:38

create drawable/button_green.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle">
  <gradient
    android:startColor="#003000"
    android:centerColor="#006000"
    android:endColor="#003000"
    android:angle="270" />
  <corners android:radius="5dp" />
  <stroke android:width="2px" android:color="#007000" />
</shape>

and point it out as @drawable/button_green:

<Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:background="@drawable/button_green"
        android:text="Button" />
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劫难
4楼-- · 2019-01-03 08:38

If your button does not require a transparent background, then you can create an illusion of a border using a Frame Layout. Just adjust the FrameLayout's "padding" attribute to change the thickness of the border.

<FrameLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="1sp"
        android:background="#000000">
        <Button
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Your text goes here"
            android:background="@color/white"
            android:textColor="@color/black"
            android:padding="10sp"
            />
</FrameLayout>

I'm not sure if the shape xml files have dynamically-editable border colors. But I do know that with this solution, you can dynamically change the color of the border by setting the FrameLayout background.

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Evening l夕情丶
5楼-- · 2019-01-03 08:38

In your XML layout:

<Button
    android:id="@+id/cancelskill"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="25dp"
    android:layout_weight="1"
    android:background="@drawable/button_border"
    android:padding="10dp"
    android:text="Cancel"
    android:textAllCaps="false"
    android:textColor="#ffffff"
    android:textSize="20dp" />

In the drawable folder, create a file for the button's border style:

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >
    <stroke
        android:width="1dp"
        android:color="#f43f10" />
</shape>

And in your Activity:

    GradientDrawable gd1 = new GradientDrawable();
    gd1.setColor(0xFFF43F10); // Changes this drawbale to use a single color instead of a gradient
    gd1.setCornerRadius(5);
    gd1.setStroke(1, 0xFFF43F10);

    cancelskill.setBackgroundDrawable(gd1);

    cancelskill.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            cancelskill.setBackgroundColor(Color.parseColor("#ffffff"));
            cancelskill.setTextColor(Color.parseColor("#f43f10"));

            GradientDrawable gd = new GradientDrawable();

            gd.setColor(0xFFFFFFFF); // Changes this drawbale to use a single color instead of a gradient
            gd.setCornerRadius(5);
            gd.setStroke(1, 0xFFF43F10);
            cancelskill.setBackgroundDrawable(gd);

            finish();
        }
    });
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Rolldiameter
6楼-- · 2019-01-03 08:40

Step 1 : Create file named : my_button_bg.xml

Step 2 : Place this file in res/drawables.xml

Step 3 : Insert below code

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle">
  <gradient android:startColor="#FFFFFF" 
    android:endColor="#00FF00"
    android:angle="270" />
  <corners android:radius="3dp" />
  <stroke android:width="5px" android:color="#000000" />
</shape>

Step 4: Use code "android:background="@drawable/my_button_bg" where needed eg below:

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Your Text"
    android:background="@drawable/my_button_bg"
    />
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虎瘦雄心在
7楼-- · 2019-01-03 08:50

Please look here about creating a shape drawable http://developer.android.com/guide/topics/resources/drawable-resource.html#Shape

Once you have done this, in the XML for your button set android:background="@drawable/your_button_border"

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