Android：更改背景颜色 View onClick Button
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Android: change background color View onClick Button
提问by Charlie
How I can change the background color to a Viewthis under a button when I click the button? I've tried a selectordoes not work because the View not change the color. What is the problem?
View单击button?时，如何将按钮下的背景颜色更改为this ？我试过一个selector不起作用，因为视图不会改变颜色。问题是什么？
This is my code:
这是我的代码：
XML
XML
...
<View
android:id="@+id/viewPlanos2"
android:layout_width="match_parent"
android:layout_height="3dp"
android:layout_gravity="center" />
<Button
android:id="@+id/button"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:layout_weight="1"
android:background="@color/transparente"
android:drawableTop="@drawable/buttonimage"
android:gravity="center"
android:paddingTop="50dp" />
<View
android:id="@+id/viewPlanos1"
android:layout_width="match_parent"
android:layout_height="3dp"
android:layout_gravity="center" />
...
JAVA
爪哇
View linea2 = (View)findViewById(R.id.viewPlanos2);
linea2.setBackgroundColor(getResources().getColor(R.drawable.linea_verde));
linea_verde
linea_verde
<item android:state_pressed="true"><shape>
<gradient android:angle="90" android:endColor="@color/azul" android:startColor="@color/azulOscuro" />
</shape></item>
<item android:state_focused="true"><shape>
<gradient android:angle="90" android:endColor="@color/azul" android:startColor="@color/azulOscuro" />
</shape></item>
<item><shape>
<solid android:color="@color/rojo" />
</shape></item>
EDIT:
编辑：
I have tried:
我试过了：
public void onClick(View v) {
if(v == botonMetro) {
linea2.setBackgroundResource(R.drawable.linea_verde);
and
linea2.setBackgroundColor(getResources().getColor(R.drawable.linea_verde));
}
}
But the code not work
但代码不起作用
回答by Naveen Kumar
You are wrongly using drawable use this one one
你错误地使用 drawable 使用这个一个
view.setBackgroundResource(R.drawable.linea_verde)
回答by MilapTank
as you say change the background color to a View this under a button when I click the button
正如你所说，当我单击按钮时，将背景颜色更改为在按钮下查看
do like this
这样做
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// change color of your view here
linea2.setBackgroundColor(getResources().getColor(R.drawable.linea_verde));
}
});
回答by FD_
setBackgroundColor()is for colors only, but it seems your using a state list drawable. If you are sure you want to use a different color depending on the Button's state, set the state list drawable using this code:
setBackgroundColor()仅用于颜色，但似乎您使用的是可绘制的状态列表。如果您确定要根据Button的状态使用不同的颜色，请使用以下代码设置可绘制的状态列表：
view.setBackgroundDrawable(R.drawable.linea_verde);
Otherwise, just set the background color using
否则，只需使用设置背景颜色
view.setBackgroundColor(getResources().getColor(R.drawable.yourcolor);
But in this case, use a click listener, and also make sure to actually use a color resource, e.g.:
但在这种情况下，请使用点击侦听器，并确保实际使用颜色资源，例如：
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="opaque_red">#f00</color>
<color name="translucent_red">#80ff0000</color>
</resources>
回答by Bhavik Kamdar
You can also do like this.
你也可以这样做。
android:background="@drawable/linea_verde"
回答by Rafal Enden
If you would like to apply default background of selected item you could use backgroundattribute with android ?attr.
如果您想应用所选项目的默认背景，您可以将background属性与 android 一起使用?attr。
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="?attr/selectableItemBackground" />
selectableItemBackgroundattribute will use proper drawable according to Android version. On pre-lollipop it will use solid background, but on lollipop devices the ripple effect will be used.
selectableItemBackground属性将根据 Android 版本使用适当的 drawable。在棒棒糖之前，它将使用纯色背景，但在棒棒糖设备上，将使用涟漪效应。
Code from: com.android.support/appcompat-v7/23.0.0/res/values/values.xml
代码来自：com.android.support/appcompat-v7/23.0.0/res/values/values.xml
<item name="selectableItemBackground">@drawable/abc_item_background_holo_dark</item>
回答by VayuDev
public void onClick(View v) {
int id = v.getId();
if(id == R.id.button) {
linea2.setBackgroundResource(R.drawable.linea_verde);
}
}
I think you were comparing the view the wrong way. I just happened to stumble to this question and since it is not marked as answered, this might help others.
我认为您以错误的方式比较视图。我碰巧偶然发现了这个问题，并且由于它没有被标记为已回答，这可能对其他人有所帮助。
回答by Skullper
Create two separate files for your shapes and change the background of your view after button click:
为您的形状创建两个单独的文件，并在单击按钮后更改视图的背景：
private boolean isPressed = false;
public void onClick(View v) {
if(v == botonMetro) {
if(isPressed){
linea2.setBackgroundResource(R.drawable.pressed_shape);
} else{
linea2.setBackgroundResource(R.drawable.un_pressed_shape);
}
isPressed = !isPressed;
}
}
