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Last active September 11, 2015 02:35
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<resources>
<declare-styleable name="ToogleImageButton">
<attr name="checked" format="boolean"/>
</declare-styleable>
</resources>
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Checkable;
import android.widget.ImageButton;
public class ToggleImageButton extends ImageButton implements Checkable {
private static final int[] CHECKED_STATE_SET = {
android.R.attr.state_checked
};
private final OnClickListener onClickListener = new OnClickListener() {
@Override
public void onClick(View view) {
toggle();
}
};
private boolean isChecked;
private boolean isBroadCasting;
private OnCheckedChangeListener onCheckedChangeListener;
public ToggleImageButton(Context context) {
super(context);
}
public ToggleImageButton(Context context, AttributeSet attrs) {
super(context, attrs);
}
public ToggleImageButton(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initAttr(context, attrs, defStyle);
}
private void initAttr(Context context, AttributeSet attrs, int defStyle) {
TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.ToogleImageButton, defStyle, 0);
boolean checked = a.getBoolean(R.styleable.ToogleImageButton_checked, false);
setChecked(checked);
a.recycle();
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
setOnClickListener(onClickListener);
}
@Override
public boolean performClick() {
toggle();
return super.performClick();
}
@Override
public boolean isChecked() {
return isChecked;
}
@Override
public void setChecked(boolean checked) {
if (isChecked == checked) {
return;
}
isChecked = checked;
refreshDrawableState();
if (isBroadCasting) {
return;
}
isBroadCasting = true;
if (onCheckedChangeListener != null) {
onCheckedChangeListener.onCheckedChanged(this, isChecked);
}
isBroadCasting = false;
}
@Override
public int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
if (isChecked()) {
mergeDrawableStates(drawableState, CHECKED_STATE_SET);
}
return drawableState;
}
public void setOnCheckedChangeListener(OnCheckedChangeListener onCheckedChangeListener) {
this.onCheckedChangeListener = onCheckedChangeListener;
}
@Override
public void toggle() {
setChecked(!isChecked);
}
@Override
public Parcelable onSaveInstanceState() {
Bundle bundle = new Bundle();
bundle.putParcelable("instanceState", super.onSaveInstanceState());
bundle.putBoolean("state", isChecked);
return bundle;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
if (state instanceof Bundle) {
Bundle outState = (Bundle) state;
setChecked(outState.getBoolean("state"));
state = outState.getParcelable("instanceState");
}
super.onRestoreInstanceState(state);
}
public interface OnCheckedChangeListener {
void onCheckedChanged(ToggleImageButton buttonView, boolean isChecked);
}
}
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