我在我的服务中回调了这个浮动图像的一张MyService.java
back = new ImageView(this);
back.setBackgroundResource(R.drawable.quick_launch_pressed_pink);
back.setImageResource(R.drawable.back);
我想通过在另一个类上调用MyService来更改ImageResource,但我的应用程序强制关闭了。这是我在MainActivity.java上的代码
public void addListenerOnCb() {
chb = (CheckBox) findViewById(R.id.cb);
final MyService ms = new MyService();
chb.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//is chkIos checked?
if (((CheckBox) v).isChecked()) {
ms.back.setImageResource(R.drawable.home);
}
}
});
}
答案 0 :(得分:0)
为check&添加两个不同的图像在drawable中未选中 在drawable文件夹中创建xml文件checkbox_selected.xml
<强> checkbox_selected.xml 强>
<?xml version="1.0" encoding="utf-8"?>
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/remember_me_selected" />
<item android:state_selected="true" android:drawable="@drawable/remember_me_selected" />
<item android:state_activated="true" android:drawable="@drawable/remember_me_selected" />
<item android:drawable="@drawable/remember_me" />
</selector>
url xml代码中的ImageView
<ImageView
android:id="@+id/remember_checkbox_img"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="0.3"
android:clickable="true"
android:src="@drawable/checkbox_selected" />
答案 1 :(得分:0)
将此用于CheckBox
checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if(b)
{
// do something
}
else
{
// do another something
}
}
});