如何使位图适合圆角正方形？
How to fit a bitmap in a rounded square?
我正在使用 Android Studio，我希望能够从图库中获取图像，调整它的大小并通过保持正确的纵横比使其适合圆角正方形（大约 300x300 像素）比率。
目前，我可以调整它的大小并将其显示为一个圆圈。
FixBitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
bitmap_to_save = scaleBitmapAndKeepRation(FixBitmap, 320, 320);
RoundedBitmapDrawable roundDrawable = RoundedBitmapDrawableFactory.create(getResources(), bitmap_to_save);
roundDrawable.setCircular(true);
p_avatar.setImageDrawable(roundDrawable);
但是，我想知道是否可以使位图看起来像我附加的图像。此外，在不丢失原始宽高比的情况下调整图像大小对我来说很重要。
这不是一个完全正方形的圆角图形，所以我不确定是否可以在 Android 中完成。
请记住，我根据用户操作动态更改了代码中的图像视图。所以这不是静态图片，如果用户上传新图片，我会用新内容替换原来的内容。
5 月 20 日编辑 1
这是我的 XML 图像视图代码 "avatar":
<?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:id="@+id/ll_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="loginpackage.social.com.ui.profile.ProfileActivity">
<include layout="@layout/custom_toolbar_shadow" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:paddingTop="@dimen/_20sdp">
<ImageView
android:id="@+id/avatar"
android:layout_width="137dp"
android:layout_height="150dp"
android:layout_gravity="center"
android:clickable="true"
android:paddingBottom="@dimen/_10sdp"
android:paddingTop="@dimen/_10sdp"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_20sdp"
android:orientation="vertical"
android:paddingLeft="@dimen/_16sdp"
android:paddingRight="@dimen/_16sdp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/profileActivity_name"
android:textSize="@dimen/_14sdp" />
<EditText
android:id="@+id/et_fullname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_5sdp"
android:background="@color/colorWhite"
android:hint="@string/signActivity_fullname"
android:imeOptions="actionDone"
android:inputType="textNoSuggestions"
android:maxLines="1"
android:padding="@dimen/_10sdp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_10sdp"
android:text="@string/profileActivity_email"
android:textSize="@dimen/_14sdp" />
<EditText
android:id="@+id/et_email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_5sdp"
android:background="@drawable/editext_back_login"
android:hint="@string/mainActivity_email"
android:imeOptions="actionNext"
android:inputType="textEmailAddress|textNoSuggestions"
android:maxLines="1"
android:padding="@dimen/_10sdp" />
<Button
android:id="@+id/btn_update"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_20sdp"
android:background="@color/colorSignuoBtn"
android:text="@string/profileActivity_update"
android:textColor="@color/colorWhite"
android:textSize="@dimen/_12sdp"
android:visibility="invisible" />
<TextView
android:id="@+id/txt_logout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="@dimen/_10sdp"
android:layout_marginTop="@dimen/_20sdp"
android:background="@drawable/button_logout_profile"
android:foreground="?attr/selectableItemBackgroundBorderless"
android:gravity="center"
android:paddingBottom="@dimen/_12sdp"
android:paddingTop="@dimen/_12sdp"
android:text="@string/profileActivity_logout"
android:textSize="@dimen/_12sdp" />
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>
编辑 2
目前，我正在使用 Picasso 对图像进行圆角处理，它似乎效果很好。
问题是我想始终保持相同的图片尺寸 (350x350px) 和纵横比。怎么可能呢？
Transformation transformation = new RoundedTransformationBuilder()
.borderColor(Color.GREEN)
.borderWidthDp(2)
.cornerRadiusDp(15)
.oval(false)
.build();
Picasso.get().load("http://www.server.com/uploads/avatars/"+Conts.USERINFO.getId()).transform(transformation).memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE).networkPolicy(NetworkPolicy.NO_CACHE) .into(p_avatar);
编辑3：
<com.makeramen.roundedimageview.RoundedImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/avatar"
android:layout_width="160dp"
android:layout_height="160dp"
android:src="@drawable/adduserprofile"
android:scaleType="centerCrop"
app:riv_border_width="2dip"
app:riv_border_color="#333333"
app:riv_mutate_background="true"
app:riv_oval="false"
app:riv_corner_radius_bottom_left="20dp"
app:riv_corner_radius_top_right="20dp"
/>
为什么如果我为 riv_corner_radius_top_right 设置不同的值，应用程序会崩溃？
例如，如果我设置：
app:riv_corner_radius_bottom_left="20dp"
app:riv_corner_radius_top_right="10dp"
我收到这个错误：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: loginpackage.social.com, PID: 25495
java.lang.RuntimeException: Unable to start activity ComponentInfo{loginpackage.social.com/loginpackage.social.com.ui.profile.ProfileActivity}: android.view.InflateException: Binary XML file line #24: Error inflating class com.makeramen.roundedimageview.RoundedImageView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2689)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: android.view.InflateException: Binary XML file line #24: Error inflating class com.makeramen.roundedimageview.RoundedImageView
at android.view.LayoutInflater.createView(LayoutInflater.java:640)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at loginpackage.social.com.ui.profile.ProfileActivity.onCreate(ProfileActivity.java:93)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at android.view.LayoutInflater.createView(LayoutInflater.java:614)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at loginpackage.social.com.ui.profile.ProfileActivity.onCreate(ProfileActivity.java:93)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.IllegalArgumentException: Multiple nonzero corner radii not yet supported.
at com.makeramen.roundedimageview.RoundedDrawable.setCornerRadius(RoundedDrawable.java:507)
at com.makeramen.roundedimageview.RoundedImageView.updateAttrs(RoundedImageView.java:368)
at com.makeramen.roundedimageview.RoundedImageView.updateDrawableAttrs(RoundedImageView.java:318)
at com.makeramen.roundedimageview.RoundedImageView.<init>(RoundedImageView.java:163)
at com.makeramen.roundedimageview.RoundedImageView.<init>(RoundedImageView.java:86)
at java.lang.reflect.Constructor.newInstance(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at android.view.LayoutInflater.createView(LayoutInflater.java:614)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at loginpackage.social.com.ui.profile.ProfileActivity.onCreate(ProfileActivity.java:93)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
如果你在公司做项目，你不应该花时间来管理这些类型的逻辑。
相反，您可以只使用已经做得很好的库。
参见 https://github.com/vinc3m1/RoundedImageView
你的 ImageView 会像
<com.makeramen.roundedimageview.RoundedImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/imageView1"
android:src="@drawable/photo1"
android:scaleType="centerCrop"
app:riv_corner_radius="30dip"
app:riv_border_width="2dip"
app:riv_border_color="#333333"
app:riv_mutate_background="true"
app:riv_tile_mode="repeat"
app:riv_oval="true" />
和依赖
repositories {
mavenCentral()
}
dependencies {
compile 'com.makeramen:roundedimageview:2.3.0'
}
更新
您似乎是 android 的新手，如果您不了解 id 和 src，不用担心！
Basically id is an unique id that you have created and you refer to
imageView1 if you do findViewById(R.id.imageView1) in your java code.
有关 id 的更多信息：Difference between "@id/" and "@+id/" in Android
src is the source image file for that image, that is located in your drawables directory.
关于您的问题
您可以使用符合您要求的不同 ImageView ScaleType。
我认为您使用 android:scaleType="centerCrop" 适合您在 imageView 上的图像。
我还在上面的答案中编辑了scaleType。如果这不符合您的要求，您可以使用其中任何一个 scale type
更新2设置宽高，可以设置layout_width和layout_height属性。如下所示。
<com.makeramen.roundedimageview.RoundedImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/imageView1"
android:src="@drawable/photo1"
android:scaleType="centerCrop"
app:riv_corner_radius="30dip"
app:riv_border_width="2dip"
app:riv_border_color="#333333"
app:riv_mutate_background="true"
app:riv_tile_mode="repeat"
app:riv_oval="true"
android:layout_width="350dp"
android:layout_height="350dp"/>
有关 android 中 sp、dp、px 的更多详细信息，请参阅 What is the difference between "px", "dip", "dp" and "sp"?。
我写了一个 MaskView 可以让您将图像蒙版成任何形状，包括中间的孔和部分透明。这是很多代码，而且我很久以前就写了它，所以如果不检查它，我什至不会自己使用它。但它的本质是一个采用 alpha 掩码的 ImageView。当它绘制自己时，它会为自己和它后面的任何东西绘制两个位图，并使用掩码将它们组合起来。
我正在使用 Android Studio，我希望能够从图库中获取图像，调整它的大小并通过保持正确的纵横比使其适合圆角正方形（大约 300x300 像素）比率。 目前，我可以调整它的大小并将其显示为一个圆圈。
FixBitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), uri);
bitmap_to_save = scaleBitmapAndKeepRation(FixBitmap, 320, 320);
RoundedBitmapDrawable roundDrawable = RoundedBitmapDrawableFactory.create(getResources(), bitmap_to_save);
roundDrawable.setCircular(true);
p_avatar.setImageDrawable(roundDrawable);
但是，我想知道是否可以使位图看起来像我附加的图像。此外，在不丢失原始宽高比的情况下调整图像大小对我来说很重要。
这不是一个完全正方形的圆角图形，所以我不确定是否可以在 Android 中完成。
请记住，我根据用户操作动态更改了代码中的图像视图。所以这不是静态图片，如果用户上传新图片，我会用新内容替换原来的内容。
5 月 20 日编辑 1
这是我的 XML 图像视图代码 "avatar":
<?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:id="@+id/ll_main"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="loginpackage.social.com.ui.profile.ProfileActivity">
<include layout="@layout/custom_toolbar_shadow" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:paddingTop="@dimen/_20sdp">
<ImageView
android:id="@+id/avatar"
android:layout_width="137dp"
android:layout_height="150dp"
android:layout_gravity="center"
android:clickable="true"
android:paddingBottom="@dimen/_10sdp"
android:paddingTop="@dimen/_10sdp"
/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_20sdp"
android:orientation="vertical"
android:paddingLeft="@dimen/_16sdp"
android:paddingRight="@dimen/_16sdp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/profileActivity_name"
android:textSize="@dimen/_14sdp" />
<EditText
android:id="@+id/et_fullname"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_5sdp"
android:background="@color/colorWhite"
android:hint="@string/signActivity_fullname"
android:imeOptions="actionDone"
android:inputType="textNoSuggestions"
android:maxLines="1"
android:padding="@dimen/_10sdp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_10sdp"
android:text="@string/profileActivity_email"
android:textSize="@dimen/_14sdp" />
<EditText
android:id="@+id/et_email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_5sdp"
android:background="@drawable/editext_back_login"
android:hint="@string/mainActivity_email"
android:imeOptions="actionNext"
android:inputType="textEmailAddress|textNoSuggestions"
android:maxLines="1"
android:padding="@dimen/_10sdp" />
<Button
android:id="@+id/btn_update"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/_20sdp"
android:background="@color/colorSignuoBtn"
android:text="@string/profileActivity_update"
android:textColor="@color/colorWhite"
android:textSize="@dimen/_12sdp"
android:visibility="invisible" />
<TextView
android:id="@+id/txt_logout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="@dimen/_10sdp"
android:layout_marginTop="@dimen/_20sdp"
android:background="@drawable/button_logout_profile"
android:foreground="?attr/selectableItemBackgroundBorderless"
android:gravity="center"
android:paddingBottom="@dimen/_12sdp"
android:paddingTop="@dimen/_12sdp"
android:text="@string/profileActivity_logout"
android:textSize="@dimen/_12sdp" />
</LinearLayout>
</LinearLayout>
</ScrollView>
</LinearLayout>
编辑 2
目前，我正在使用 Picasso 对图像进行圆角处理，它似乎效果很好。 问题是我想始终保持相同的图片尺寸 (350x350px) 和纵横比。怎么可能呢？
Transformation transformation = new RoundedTransformationBuilder()
.borderColor(Color.GREEN)
.borderWidthDp(2)
.cornerRadiusDp(15)
.oval(false)
.build();
Picasso.get().load("http://www.server.com/uploads/avatars/"+Conts.USERINFO.getId()).transform(transformation).memoryPolicy(MemoryPolicy.NO_CACHE, MemoryPolicy.NO_STORE).networkPolicy(NetworkPolicy.NO_CACHE) .into(p_avatar);
编辑3：
<com.makeramen.roundedimageview.RoundedImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/avatar"
android:layout_width="160dp"
android:layout_height="160dp"
android:src="@drawable/adduserprofile"
android:scaleType="centerCrop"
app:riv_border_width="2dip"
app:riv_border_color="#333333"
app:riv_mutate_background="true"
app:riv_oval="false"
app:riv_corner_radius_bottom_left="20dp"
app:riv_corner_radius_top_right="20dp"
/>
为什么如果我为 riv_corner_radius_top_right 设置不同的值，应用程序会崩溃？
例如，如果我设置：
app:riv_corner_radius_bottom_left="20dp"
app:riv_corner_radius_top_right="10dp"
我收到这个错误：
E/AndroidRuntime: FATAL EXCEPTION: main
Process: loginpackage.social.com, PID: 25495
java.lang.RuntimeException: Unable to start activity ComponentInfo{loginpackage.social.com/loginpackage.social.com.ui.profile.ProfileActivity}: android.view.InflateException: Binary XML file line #24: Error inflating class com.makeramen.roundedimageview.RoundedImageView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2689)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: android.view.InflateException: Binary XML file line #24: Error inflating class com.makeramen.roundedimageview.RoundedImageView
at android.view.LayoutInflater.createView(LayoutInflater.java:640)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at loginpackage.social.com.ui.profile.ProfileActivity.onCreate(ProfileActivity.java:93)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at android.view.LayoutInflater.createView(LayoutInflater.java:614)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at loginpackage.social.com.ui.profile.ProfileActivity.onCreate(ProfileActivity.java:93)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by: java.lang.IllegalArgumentException: Multiple nonzero corner radii not yet supported.
at com.makeramen.roundedimageview.RoundedDrawable.setCornerRadius(RoundedDrawable.java:507)
at com.makeramen.roundedimageview.RoundedImageView.updateAttrs(RoundedImageView.java:368)
at com.makeramen.roundedimageview.RoundedImageView.updateDrawableAttrs(RoundedImageView.java:318)
at com.makeramen.roundedimageview.RoundedImageView.<init>(RoundedImageView.java:163)
at com.makeramen.roundedimageview.RoundedImageView.<init>(RoundedImageView.java:86)
at java.lang.reflect.Constructor.newInstance(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:288)
at android.view.LayoutInflater.createView(LayoutInflater.java:614)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:750)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:287)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:139)
at loginpackage.social.com.ui.profile.ProfileActivity.onCreate(ProfileActivity.java:93)
at android.app.Activity.performCreate(Activity.java:6288)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2642)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2754)
at android.app.ActivityThread.access0(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5938)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
如果你在公司做项目，你不应该花时间来管理这些类型的逻辑。
相反，您可以只使用已经做得很好的库。 参见 https://github.com/vinc3m1/RoundedImageView
你的 ImageView 会像
<com.makeramen.roundedimageview.RoundedImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/imageView1"
android:src="@drawable/photo1"
android:scaleType="centerCrop"
app:riv_corner_radius="30dip"
app:riv_border_width="2dip"
app:riv_border_color="#333333"
app:riv_mutate_background="true"
app:riv_tile_mode="repeat"
app:riv_oval="true" />
和依赖
repositories {
mavenCentral()
}
dependencies {
compile 'com.makeramen:roundedimageview:2.3.0'
}
更新
您似乎是 android 的新手，如果您不了解 id 和 src，不用担心！
Basically
idis an unique id that you have created and you refer to imageView1 if you do findViewById(R.id.imageView1) in your java code.
有关 id 的更多信息：Difference between "@id/" and "@+id/" in Android
srcis the source image file for that image, that is located in your drawables directory.
关于您的问题
您可以使用符合您要求的不同 ImageView ScaleType。
我认为您使用 android:scaleType="centerCrop" 适合您在 imageView 上的图像。
我还在上面的答案中编辑了scaleType。如果这不符合您的要求，您可以使用其中任何一个 scale type
更新2设置宽高，可以设置layout_width和layout_height属性。如下所示。
<com.makeramen.roundedimageview.RoundedImageView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/imageView1"
android:src="@drawable/photo1"
android:scaleType="centerCrop"
app:riv_corner_radius="30dip"
app:riv_border_width="2dip"
app:riv_border_color="#333333"
app:riv_mutate_background="true"
app:riv_tile_mode="repeat"
app:riv_oval="true"
android:layout_width="350dp"
android:layout_height="350dp"/>
有关 android 中 sp、dp、px 的更多详细信息，请参阅 What is the difference between "px", "dip", "dp" and "sp"?。
我写了一个 MaskView 可以让您将图像蒙版成任何形状，包括中间的孔和部分透明。这是很多代码，而且我很久以前就写了它，所以如果不检查它，我什至不会自己使用它。但它的本质是一个采用 alpha 掩码的 ImageView。当它绘制自己时，它会为自己和它后面的任何东西绘制两个位图，并使用掩码将它们组合起来。