Android圆角设置方法看着一篇文章就够了
~yportnE 人气:0方法1:Outline
getView(R.id.image_view_1).setClipToOutline(true); getView(R.id.image_view_1).setOutlineProvider(new ViewOutlineProvider() { @Override public void getOutline(View view, Outline outline) { outline.setRoundRect(0, 0, view.getWidth(), view.getHeight(), radius); } });
实现方法:
1) 要设置圆角的View.setClipToOutline(true)
2)要设置圆角的View.setOutlineProvider(ViewOutlineProvider provider)
ViewOutlineProvider 只有1个抽象方法,通过Outline.setRoundRect设置圆角:
public abstract void getOutline(View view, Outline outline);
方法特点:
1)对View设置,可View、ViewGroup
2)对4个角同时设置,不能单独设置单个角
方法2:CardView
<androidx.cardview.widget.CardView android:layout_width="match_parent" android:layout_height="100dp" android:layout_marginTop="@dimen/dp_6" app:cardCornerRadius="@dimen/dp_24" app:cardElevation="0dp" app:cardUseCompatPadding="false"> <ImageView android:id="@+id/image_view_2" android:layout_width="match_parent" android:layout_height="match_parent" android:src="#93D5DC"/> </androidx.cardview.widget.CardView>
实现方法:
1)对需要设置圆角的View,使用CardView包裹
2)对CardView设置,设置圆角、去除阴影和padding
app:cardCornerRadius="@dimen/dp_24" app:cardElevation="0dp" app:cardUseCompatPadding="false"
方法特点:
1)对View设置,可View、ViewGroup
2)对4个角同时设置,不能单独设置单个角
方法3:自定义Drawable
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle"> <corners android:radius="@dimen/dp_24"/> <solid android:color="#2A5CAA"/> </shape>
实现方法:
1)自定义shape,设置radius
<corners android:radius="@dimen/dp_24"/>
方法特点:
1)对生成的图片进行设置
2)可对4角同时设置,也可对4角单独设置
<corners android:bottomLeftRadius="@dimen/dp_24" android:bottomRightRadius="@dimen/dp_24" android:topLeftRadius="@dimen/dp_24" android:topRightRadius="@dimen/dp_24"/>
方法4:GradientDrawable和RoundedBitmapDrawable
//GradientDrawable if(true) { //同时设置四个角 GradientDrawable drawable = new GradientDrawable(); drawable.setShape(GradientDrawable.RECTANGLE); drawable.setCornerRadius(radius); drawable.setColor(0xFFEEA2A4); ((ImageView) getView(R.id.image_view_4)).setImageDrawable(drawable); } else { //单独设置四个角 GradientDrawable drawable = new GradientDrawable(); drawable.setShape(GradientDrawable.RECTANGLE); drawable.setColor(0xFFEEA2A4); float[] radii = new float[]{ radius, radius, 0F, 0F, 0F, 0F, radius, radius }; drawable.setCornerRadii(radii); ((ImageView) getView(R.id.image_view_4)).setImageDrawable(drawable); }
实现方法:GradientDrawable
1)对GradientDrawable设置圆角drawable.setCornerRadius(radius)
2)或者对GradientDrawable设置float[],对4角单独设置
float[] radii = new float[]{ radius, radius, 0F, 0F, 0F, 0F, radius, radius }; drawable.setCornerRadii(radii);
方法特点:GradientDrawable
1)对图片进行设置
2)可对4角同时设置,也可对4角单独设置
实现方法:RoundedBitmapDrawable
RoundedBitmapDrawable drawable = RoundedBitmapDrawableFactory.create(getResources(), ResourceUtils.drawable2Bitmap(ResourceUtils.getDrawable(R.drawable.drawable_90_corner_2))); drawable.setCornerRadius(radius); ((ImageView) getView(R.id.image_view_4_2)).setImageDrawable(drawable);
1)通过RoundedBitmapDrawableFactory创建RoundedBitmapDrawable,提供了三个实现方法:
public static RoundedBitmapDrawable create(@NonNull Resources res, @Nullable Bitmap bitmap) public static RoundedBitmapDrawable create(@NonNull Resources res, @NonNull String filepath) public static RoundedBitmapDrawable create(@NonNull Resources res, @NonNull InputStream is)
区别在于第2个参数:Bitmap、filepath、InputStream
2)对RoundedBitmapDrawable设置setCornerRadius(radius)
方法特点:RoundedBitmapDrawable
1)对图片进行设置
2)对4个角同时设置,不能单独设置单个角
方法5:3方库,本例用Glide
//Glide if(true) { //同时设置四个角 Glide.with(this) .asDrawable() .load(R.drawable.drawable_90_corner) .transform(new RoundedCorners(radius)) .into((ImageView) getView(R.id.image_view_5)); } else { //单独设置四个角 Glide.with(this) .asDrawable() .load(R.drawable.drawable_90_corner) .transform(new GranularRoundedCorners(radius, radius, radius, radius)) .into((ImageView) getView(R.id.image_view_5)); }
实现方法:
1)引入Glide,使用Glide加载图片
2)设置transform(new RoundedCorners(radius))或者transform(new GranularRoundedCorners(radius, radius, radius, radius))
方法特点:
1)对图片进行设置
2)可对4角同时设置,也可对4角单独设置,只是方法不同
不同方法效果对比:
代码地址:
AndroidJavaKotlin: 深度学习Android、Java、Kotlin (gitee.com)
总结
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