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是否可以在按钮和文本视图中使用VectorDrawable，使用android：DrawableRight？

android java android-layout android-vectordrawable compound-drawables
2022-08-31 08:28:13

当我在文本视图或图像视图中使用VectorDrawable资源时，我在使用“android：DrawableRight”/“android：DrawableEnd”/“android：DrawableStart”/“android：DrawableLeft”时会出现运行时崩溃。

该应用程序将编译良好，没有任何警告。

我正在使用

  • 等级 1.5
  • 支持库 23.2 （'com.android.support：appcompat-v7：23.2.0'）

我发现，我可以在Java中以编程方式分配SVG，而不会像这样崩溃。

TextView tv = (TextView) findViewById(R.id.textView);
tv.setCompoundDrawablesWithIntrinsicBounds(null,null, getResources().getDrawable(R.drawable.ic_accessible_white_36px),null);

（我怀疑这是23.2的支持库错误。

但是是否可以对SVG资源使用drawableRight等？

这是我的布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="au.com.angryitguy.testsvg.MainActivity">


<TextView
    android:id="@+id/textView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:drawableRight="@drawable/ic_accessible_white_36px"
    android:background="@color/colorPrimary"
    android:textColor="#FFFFFF"
    android:textSize="22sp"
    android:text="Hello World!"/>
</RelativeLayout>

这是我的活动

package au.com.angryitguy.testsvg;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

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

        }
    }

这是来自Google材料设计网站的未经修改的VectorDrawable资产。

<vector android:height="24dp" android:viewportHeight="24.0"
    android:viewportWidth="24.0" android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
    <path android:fillColor="#FFFFFF" android:pathData="M12,4m-2,0a2,2 0,1 1,4 0a2,2 0,1 1,-4 0"/>
    <path android:fillColor="#FFFFFF" android:pathData="M19,13v-2c-1.54,0.02 -3.09,-0.75 -4.07,-1.83l-1.29,-1.43c-0.17,-0.19 -0.38,-0.34 -0.61,-0.45 -0.01,0 -0.01,-0.01 -0.02,-0.01L13,7.28c-0.35,-0.2 -0.75,-0.3 -1.19,-0.26C10.76,7.11 10,8.04 10,9.09L10,15c0,1.1 0.9,2 2,2h5v5h2v-5.5c0,-1.1 -0.9,-2 -2,-2h-3v-3.45c1.29,1.07 3.25,1.94 5,1.95zM12.83,18c-0.41,1.16 -1.52,2 -2.83,2 -1.66,0 -3,-1.34 -3,-3 0,-1.31 0.84,-2.41 2,-2.83L9,12.1c-2.28,0.46 -4,2.48 -4,4.9 0,2.76 2.24,5 5,5 2.42,0 4.44,-1.72 4.9,-4h-2.07z"/>
</vector>

这是我的应用程序 build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "au.com.angryitguy.testsvg"
        minSdkVersion 16
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        // Stops the Gradle plugin’s automatic rasterization of vectors
        generatedDensities = []
    }
    // Flag to tell aapt to keep the attribute ids around
    aaptOptions {
        additionalParameters "--no-version-vectors"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.2.0'
}

这是崩溃。（请注意引用文本视图的夸大错误。

java.lang.RuntimeException: Unable to start activity ComponentInfo{
    au.com.angryitguy.testsvg/au.com.angryitguy.testsvg.MainActivity}: 
    android.view.InflateException: Binary XML file line #13: 
    Error inflating class TextView

at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
at android.app.ActivityThread.access$600(ActivityThread.java:130)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4745)
...

Caused by: android.view.InflateException: 
    Binary XML file line #13: Error inflating class TextView
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:396)
at android.view.LayoutInflater.inflate(LayoutInflater.java:352)
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:267)
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:129)
at au.com.angryitguy.testsvg.MainActivity.onCreate(MainActivity.java:14)
at android.app.Activity.performCreate(Activity.java:5008)
...

Caused by: android.content.res.Resources$NotFoundException: 
    File res/drawable/ic_accessible_white_36px.xml from drawable resource ID #0x7f02004b
at android.content.res.Resources.loadDrawable(Resources.java:1918)
at android.content.res.TypedArray.getDrawable(TypedArray.java:601)
at android.widget.TextView.<init>(TextView.java:622)
at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:60)
at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:56)
at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:103)
at android.support.v7.app.AppCompatDelegateImplV7.createView(AppCompatDelegateImplV7.java:963)
at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:1022)
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:675)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:267) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:129) 
at au.com.angryitguy.testsvg.MainActivity.onCreate(MainActivity.java:14) 
at android.app.Activity.performCreate(Activity.java:5008) 
...

Caused by: org.xmlpull.v1.XmlPullParserException:
    Binary XML file line #1: invalid drawable tag vector
at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:877)
at android.graphics.drawable.Drawable.createFromXml(Drawable.java:818)
at android.content.res.Resources.loadDrawable(Resources.java:1915)
at android.content.res.TypedArray.getDrawable(TypedArray.java:601) 
at android.widget.TextView.<init>(TextView.java:622) 
at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:60) 
at android.support.v7.widget.AppCompatTextView.<init>(AppCompatTextView.java:56) 
at android.support.v7.app.AppCompatViewInflater.createView(AppCompatViewInflater.java:103) 
at android.support.v7.app.AppCompatDelegateImplV7.createView(AppCompatDelegateImplV7.java:963) 
at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:1022) 
at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44) 
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:675) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:746) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:489) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 
at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:267) 
at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:129) 
at au.com.angryitguy.testsvg.MainActivity.onCreate(MainActivity.java:14) 
at android.app.Activity.performCreate(Activity.java:5008) 
...

答案 1

是否可以对SVG资源使用可绘制的权利等？

是的

AppCompatTextView 现在支持 、 、 和复合可绘制对象，支持向后移植的可绘制对象类型，如 .app:drawableLeftCompatapp:drawableTopCompatapp:drawableRightCompatapp:drawableBottomCompatapp:drawableStartCompatapp:drawableEndCompatVectorDrawableCompat

将其包含在您的 gradle 文件中

implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'

在文本视图中，您可以使用

app:drawableLeftCompat
app:drawableStartCompat

如果您在使用 app：drawableLeftCompat 时遇到问题，app：drawableStartCompat 中的按钮，您需要将库更新到

androidx.appcompat：appcompat：1.2.0-alpha01

他们有一个错误

androidx.appcompat：appcompat：1.1.0-alpha01

您可以看到文档

或者，如果您还不想更新，则：

因为谷歌似乎不会很快对这个问题做任何事情，所以我不得不为我的所有应用程序想出一个更可靠的可重用解决方案：

  1. 首先在attrs中添加自定义TextView属性.xml应用程序的文件“res/values/attrs.xml”：

    <resources>
    <declare-styleable name="CustomTextView">
        <attr name="drawableStartCompat" format="reference"/>
        <attr name="drawableEndCompat" format="reference"/>
        <attr name="drawableTopCompat" format="reference"/>
        <attr name="drawableBottomCompat" format="reference"/>
    </declare-styleable>
</resources>

  2. 然后创建自定义 TextView 类，如下所示：

    import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.support.v7.content.res.AppCompatResources;
import android.support.v7.widget.AppCompatTextView;
import android.util.AttributeSet;

public class CustomTextView extends AppCompatTextView {
    public CustomTextView(Context context) {
        super(context);
    }    
    public CustomTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initAttrs(context, attrs);
    }
    public CustomTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        initAttrs(context, attrs);
    }

    void initAttrs(Context context, AttributeSet attrs) {
        if (attrs != null) {
            TypedArray attributeArray = context.obtainStyledAttributes(
                    attrs,
                    R.styleable.CustomTextView);

            Drawable drawableStart = null;
            Drawable drawableEnd = null;
            Drawable drawableBottom = null;
            Drawable drawableTop = null;
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                drawableStart = attributeArray.getDrawable(R.styleable.CustomTextView_drawableStartCompat);
                drawableEnd = attributeArray.getDrawable(R.styleable.CustomTextView_drawableEndCompat);
                drawableBottom = attributeArray.getDrawable(R.styleable.CustomTextView_drawableBottomCompat);
                drawableTop = attributeArray.getDrawable(R.styleable.CustomTextView_drawableTopCompat);
            } else {
                final int drawableStartId = attributeArray.getResourceId(R.styleable.CustomTextView_drawableStartCompat, -1);
                final int drawableEndId = attributeArray.getResourceId(R.styleable.CustomTextView_drawableEndCompat, -1);
                final int drawableBottomId = attributeArray.getResourceId(R.styleable.CustomTextView_drawableBottomCompat, -1);
                final int drawableTopId = attributeArray.getResourceId(R.styleable.CustomTextView_drawableTopCompat, -1);

                if (drawableStartId != -1)
                    drawableStart = AppCompatResources.getDrawable(context, drawableStartId);
                if (drawableEndId != -1)
                    drawableEnd = AppCompatResources.getDrawable(context, drawableEndId);
                if (drawableBottomId != -1)
                    drawableBottom = AppCompatResources.getDrawable(context, drawableBottomId);
                if (drawableTopId != -1)
                    drawableTop = AppCompatResources.getDrawable(context, drawableTopId);
            }

            // to support rtl
            setCompoundDrawablesRelativeWithIntrinsicBounds(drawableStart, drawableTop, drawableEnd, drawableBottom);
            attributeArray.recycle();
        }
    }
}

  3. 现在，您可以通过自定义属性在任何布局中轻松使用它：

    <YOUR_VIEW_PACKAGE.CustomTextView
    android:id="@+id/edt_my_edit_text"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:drawableStartCompat="@drawable/your_vector_drawable" <!-- vector drawable -->
    app:drawableEndCompat="@drawable/your_vector_drawable" <!-- vector drawable -->
    app:drawableTopCompat="@drawable/your_vector_drawable" <!-- vector drawable -->
    app:drawableBottomCompat="@drawable/your_vector_drawable" <!-- vector drawable -->
    />
    • 你可以用 Button、EditText 和 RadioButton 做类似的事情，因为它们派生自 TextView

希望这有助于:)


答案 2

我发现的最好的方法：

Drawable leftDrawable = AppCompatResources.getDrawable(this, R.drawable.ic_search);
search.setCompoundDrawablesWithIntrinsicBounds(leftDrawable, null, null, null);

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