具有选定状态的Android ImageButton？

If I was using an ImageButton with a selector for its background, is there a state I can change which will make it change its appearance? Right now I can get it to change images when pressed, but there seems to be no "highlighted" or "selected" or similar state which lets me toggle its appearance at will.

如果我使用带有选择器的ImageButton作为其背景，是否有一种状态我可以改变它会改变它的外观？现在我可以让它在按下时更改图像，但似乎没有“突出显示”或“选中”或类似状态，这让我可以随意切换其外观。

Here's my XML; it only changes appearance when pressed.

这是我的XML;它只会在按下时改变外观。

 <selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/map_toolbar_details_selected" />
<item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/map_toolbar_details_selected" />
<item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/map_toolbar_details_selected" />
<item android:drawable="@drawable/map_toolbar_details" />

5 个解决方案

#1

This works for me:

这对我有用：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- NOTE: order is important (the first matching state(s) is what is rendered) -->
    <item 
        android:state_selected="true" 
        android:drawable="@drawable/info_icon_solid_with_shadow" />
    <item 
        android:drawable="@drawable/info_icon_outline_with_shadow" />
 </selector>

And then in java:

然后在java中：

//assign the image in code (or you can do this in your layout xml with the src attribute)
imageButton.setImageDrawable(getBaseContext().getResources().getDrawable(R.drawable....));

//set the click listener
imageButton.setOnClickListener(new OnClickListener() {

    public void onClick(View button) {
        //Set the button's appearance
        button.setSelected(!button.isSelected());

        if (button.isSelected()) {
            //Handle selected state change
        } else {
            //Handle de-select state change
        }

    }

});

For smooth transition you can also mention animation time:

为了平滑过渡，您还可以提到动画时间：

<selector xmlns:android="http://schemas.android.com/apk/res/android" android:exitFadeDuration="@android:integer/config_mediumAnimTime">

#2

ToggleImageButton which implements Checkable interface and supports OnCheckedChangeListener and android:checked xml attribute:

ToggleImageButton实现了Checkable接口并支持OnCheckedChangeListener和android：checked xml属性：

public class ToggleImageButton extends ImageButton implements Checkable {
    private OnCheckedChangeListener onCheckedChangeListener;

    public ToggleImageButton(Context context) {
        super(context);
    }

    public ToggleImageButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        setChecked(attrs);
    }

    public ToggleImageButton(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        setChecked(attrs);
    }

    private void setChecked(AttributeSet attrs) {
        TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.ToggleImageButton);
        setChecked(a.getBoolean(R.styleable.ToggleImageButton_android_checked, false));
        a.recycle();
    }

    @Override
    public boolean isChecked() {
        return isSelected();
    }

    @Override
    public void setChecked(boolean checked) {
        setSelected(checked);

        if (onCheckedChangeListener != null) {
            onCheckedChangeListener.onCheckedChanged(this, checked);
        }
    }

    @Override
    public void toggle() {
        setChecked(!isChecked());
    }

    @Override
    public boolean performClick() {
        toggle();
        return super.performClick();
    }

    public OnCheckedChangeListener getOnCheckedChangeListener() {
        return onCheckedChangeListener;
    }

    public void setOnCheckedChangeListener(OnCheckedChangeListener onCheckedChangeListener) {
        this.onCheckedChangeListener = onCheckedChangeListener;
    }

    public static interface OnCheckedChangeListener {
        public void onCheckedChanged(ToggleImageButton buttonView, boolean isChecked);
    }
}

res/values/attrs.xml:

RES /值/ attrs.xml：

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="ToggleImageButton">
        <attr name="android:checked" />
    </declare-styleable>
</resources>

#3

The best way to do this without more images :

没有更多图像的最佳方法：

public static void buttonEffect(View button){
    button.setOnTouchListener(new OnTouchListener() {

        public boolean onTouch(View v, MotionEvent event) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN: {
                    v.getBackground().setColorFilter(0xe0f47521,PorterDuff.Mode.SRC_ATOP);
                    v.invalidate();
                    break;
                }
                case MotionEvent.ACTION_UP: {
                    v.getBackground().clearColorFilter();
                    v.invalidate();
                    break;
                }
            }
            return false;
        }
    });
}

#4

Try this:

尝试这个：

 <item
   android:state_focused="true"
   android:state_enabled="true"
   android:drawable="@drawable/map_toolbar_details_selected" />

Also for colors i had success with

也是我成功的颜色

<selector
        xmlns:android="http://schemas.android.com/apk/res/android">
        <item
            android:state_selected="true"

            android:color="@color/primary_color" />
        <item
            android:color="@color/secondary_color" />
</selector>

#5

Create an XML-file in a res/drawable folder. For instance, "btn_image.xml":

在res / drawable文件夹中创建XML文件。例如，“btn_image.xml”：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/bg_state_1"
          android:state_pressed="true"
          android:state_selected="true"/>
    <item android:drawable="@drawable/bg_state_2"
          android:state_pressed="true"
          android:state_selected="false"/>
    <item android:drawable="@drawable/bg_state_selected"
          android:state_selected="true"/>
    <item android:drawable="@drawable/bg_state_deselected"/>
</selector>

You can combine those files you like, for instance, change "bg_state_1" to "bg_state_deselected" and "bg_state_2" to "bg_state_selected".

您可以组合您喜欢的文件，例如，将“bg_state_1”更改为“bg_state_deselected”，将“bg_state_2”更改为“bg_state_selected”。

In any of those files you can write something like:

在任何这些文件中，您可以编写如下内容：

<shape xmlns:android="http://schemas.android.com/apk/res/android"
       android:shape="rectangle">
    <solid android:color="#ccdd00"/>
    <corners android:radius="5dp"/>
</shape>

Create in a layout file an ImageView or ImageButton with the following attributes:

在布局文件中创建具有以下属性的ImageView或ImageButton：

<ImageView
    android:id="@+id/image"
    android:layout_width="50dp"
    android:layout_height="50dp"
    android:adjustViewBounds="true"
    android:background="@drawable/btn_image"
    android:padding="10dp"
    android:scaleType="fitCenter"
    android:src="@drawable/star"/>

Later in code:

后来的代码：

image.setSelected(!image.isSelected());