我正在开发一个非常简单的应用程序来在单击按钮时更改背景颜色,但我遇到了无法使用 MainActivity.java 文件更改背景颜色的错误。
package com.example.audio;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
public class MainActivity extends AppCompatActivity {
View view;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
view = this.getWindow().getDecorView();
view.setBackground(R.color.colorAccent);
}
}
颜色.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#008577</color>
<color name="colorPrimaryDark">#00574B</color>
<color name="colorAccent">#D81B60</color>
</resources>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:text="Button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>
在MainActivity.java文件中设置背景时,view.setBackground(R.color.colorAccent);行弹出如下错误
错误:类型不兼容:无法将 int 转换为 Drawable
我应该怎么做才能解决这个错误?
最佳答案
应该是view.setBackgroundResource(R.color.colorAccent);
关于java - 应用程序 setBackground() 错误 : incompatible types: int cannot be converted to Drawable,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/55460249/