Convert RadioGridGroup to kotlin
This commit is contained in:
FooIbar authored and tarsin committed
1 parent
4a0893c573
commit
e2bf887b94
1 file changed
+176
-194
@@ -13,252 +13,234 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.hippo.ehviewer.ui.legacy
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package com.hippo.ehviewer.ui.legacy;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.AttributeSet;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.CompoundButton;
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import android.widget.RadioButton;
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import androidx.annotation.IdRes;
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import com.hippo.ehviewer.yorozuya.ViewUtils;
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public class RadioGridGroup extends SimpleGridLayout {
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private static final int[] RADIO_ATTRS = new int[]{
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android.R.attr.checkedButton
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};
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// holds the checked id; the selection is empty by default
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private int mCheckedId = -1;
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// tracks children radio buttons checked state
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private CompoundButton.OnCheckedChangeListener mChildOnCheckedChangeListener;
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// when true, mOnCheckedChangeListener discards events
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private boolean mProtectFromCheckedChange = false;
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private OnCheckedChangeListener mOnCheckedChangeListener;
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private PassThroughHierarchyChangeListener mPassThroughListener;
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public RadioGridGroup(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context, attrs);
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}
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public RadioGridGroup(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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init(context, attrs);
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}
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private void init(Context context, AttributeSet attrs) {
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final TypedArray a = context.obtainStyledAttributes(attrs, RADIO_ATTRS);
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int value = a.getResourceId(0, View.NO_ID);
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if (value != View.NO_ID) {
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mCheckedId = value;
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}
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a.recycle();
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mChildOnCheckedChangeListener = new CheckedStateTracker();
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mPassThroughListener = new PassThroughHierarchyChangeListener();
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super.setOnHierarchyChangeListener(mPassThroughListener);
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}
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import android.content.Context
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import android.util.AttributeSet
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import android.view.View
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import android.widget.CompoundButton
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import android.widget.RadioButton
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import androidx.annotation.IdRes
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import com.hippo.ehviewer.yorozuya.ViewUtils
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class RadioGridGroup : SimpleGridLayout {
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/**
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* {@inheritDoc}
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*/
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@Override
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public void setOnHierarchyChangeListener(OnHierarchyChangeListener listener) {
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// the user listener is delegated to our pass-through listener
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mPassThroughListener.mOnHierarchyChangeListener = listener;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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protected void onFinishInflate() {
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super.onFinishInflate();
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// checks the appropriate radio button as requested in the XML file
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if (mCheckedId != -1) {
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mProtectFromCheckedChange = true;
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setCheckedStateForView(mCheckedId, true);
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mProtectFromCheckedChange = false;
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setCheckedId(mCheckedId);
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}
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}
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@Override
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public void addView(View child, int index, ViewGroup.LayoutParams params) {
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if (child instanceof final RadioButton button) {
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if (button.isChecked()) {
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mProtectFromCheckedChange = true;
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if (mCheckedId != -1) {
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setCheckedStateForView(mCheckedId, false);
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}
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mProtectFromCheckedChange = false;
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setCheckedId(button.getId());
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}
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}
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super.addView(child, index, params);
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}
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/**
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* <p>Sets the selection to the radio button whose identifier is passed in
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* parameter. Using -1 as the selection identifier clears the selection;
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* such an operation is equivalent to invoking {@link #clearCheck()}.</p>
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*
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* @param id the unique id of the radio button to select in this group
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* @see #getCheckedRadioButtonId()
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* @see #clearCheck()
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*/
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public void check(@IdRes int id) {
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// don't even bother
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if (id != -1 && (id == mCheckedId)) {
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return;
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}
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if (mCheckedId != -1) {
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setCheckedStateForView(mCheckedId, false);
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}
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if (id != -1) {
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setCheckedStateForView(id, true);
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}
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setCheckedId(id);
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}
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private void setCheckedId(@IdRes int id) {
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mCheckedId = id;
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if (mOnCheckedChangeListener != null) {
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mOnCheckedChangeListener.onCheckedChanged(this, mCheckedId);
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}
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}
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private void setCheckedStateForView(int viewId, boolean checked) {
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View checkedView = findViewById(viewId);
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if (checkedView instanceof RadioButton) {
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((RadioButton) checkedView).setChecked(checked);
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}
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}
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/**
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* <p>Returns the identifier of the selected radio button in this group.
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* Upon empty selection, the returned value is -1.</p>
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* Returns the identifier of the selected radio button in this group.
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* Upon empty selection, the returned value is -1.
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*
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* @return the unique id of the selected radio button in this group
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* @see #check(int)
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* @see #clearCheck()
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* @see .check
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* @see .clearCheck
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*/
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@IdRes
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public int getCheckedRadioButtonId() {
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return mCheckedId;
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// holds the checked id; the selection is empty by default
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@get:IdRes
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var checkedRadioButtonId = -1
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private set
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// tracks children radio buttons checked state
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private var mChildOnCheckedChangeListener: CompoundButton.OnCheckedChangeListener? = null
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// when true, mOnCheckedChangeListener discards events
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private var mProtectFromCheckedChange = false
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private var mOnCheckedChangeListener: OnCheckedChangeListener? = null
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private var mPassThroughListener: PassThroughHierarchyChangeListener? = null
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constructor(context: Context, attrs: AttributeSet?) : super(context, attrs) {
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init(context, attrs)
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}
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constructor(context: Context, attrs: AttributeSet?, defStyle: Int) : super(
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context,
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attrs,
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defStyle
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) {
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init(context, attrs)
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}
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private fun init(context: Context, attrs: AttributeSet?) {
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val a = context.obtainStyledAttributes(attrs, RADIO_ATTRS)
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val value = a.getResourceId(0, NO_ID)
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if (value != NO_ID) {
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checkedRadioButtonId = value
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}
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a.recycle()
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mChildOnCheckedChangeListener = CheckedStateTracker()
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mPassThroughListener = PassThroughHierarchyChangeListener()
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super.setOnHierarchyChangeListener(mPassThroughListener)
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}
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/**
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* {@inheritDoc}
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*/
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override fun setOnHierarchyChangeListener(listener: OnHierarchyChangeListener) {
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// the user listener is delegated to our pass-through listener
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mPassThroughListener!!.mOnHierarchyChangeListener = listener
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}
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/**
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* {@inheritDoc}
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*/
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override fun onFinishInflate() {
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super.onFinishInflate()
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// checks the appropriate radio button as requested in the XML file
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if (checkedRadioButtonId != -1) {
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mProtectFromCheckedChange = true
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setCheckedStateForView(checkedRadioButtonId, true)
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mProtectFromCheckedChange = false
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setCheckedId(checkedRadioButtonId)
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}
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}
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override fun addView(child: View, index: Int, params: LayoutParams) {
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if (child is RadioButton) {
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if (child.isChecked) {
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mProtectFromCheckedChange = true
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if (checkedRadioButtonId != -1) {
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setCheckedStateForView(checkedRadioButtonId, false)
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}
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mProtectFromCheckedChange = false
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setCheckedId(child.getId())
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}
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}
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super.addView(child, index, params)
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}
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/**
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* <p>Clears the selection. When the selection is cleared, no radio button
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* in this group is selected and {@link #getCheckedRadioButtonId()} returns
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* null.</p>
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*
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* @see #check(int)
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* @see #getCheckedRadioButtonId()
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* Sets the selection to the radio button whose identifier is passed in
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* parameter. Using -1 as the selection identifier clears the selection;
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* such an operation is equivalent to invoking [.clearCheck].
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*
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* @param id the unique id of the radio button to select in this group
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* @see .getCheckedRadioButtonId
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* @see .clearCheck
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*/
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public void clearCheck() {
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check(-1);
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fun check(@IdRes id: Int) {
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// don't even bother
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if (id != -1 && id == checkedRadioButtonId) {
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return
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}
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if (checkedRadioButtonId != -1) {
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setCheckedStateForView(checkedRadioButtonId, false)
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}
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if (id != -1) {
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setCheckedStateForView(id, true)
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}
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setCheckedId(id)
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}
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private fun setCheckedId(@IdRes id: Int) {
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checkedRadioButtonId = id
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if (mOnCheckedChangeListener != null) {
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mOnCheckedChangeListener!!.onCheckedChanged(this, checkedRadioButtonId)
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}
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}
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private fun setCheckedStateForView(viewId: Int, checked: Boolean) {
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val checkedView = findViewById<View>(viewId)
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if (checkedView is RadioButton) {
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checkedView.isChecked = checked
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}
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}
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/**
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* <p>Register a callback to be invoked when the checked radio button
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* changes in this group.</p>
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*
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* Clears the selection. When the selection is cleared, no radio button
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* in this group is selected and [.getCheckedRadioButtonId] returns
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* null.
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*
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* @see .check
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* @see .getCheckedRadioButtonId
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*/
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fun clearCheck() {
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check(-1)
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}
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/**
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*
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* Register a callback to be invoked when the checked radio button
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* changes in this group.
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*
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* @param listener the callback to call on checked state change
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*/
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public void setOnCheckedChangeListener(OnCheckedChangeListener listener) {
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mOnCheckedChangeListener = listener;
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fun setOnCheckedChangeListener(listener: OnCheckedChangeListener?) {
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mOnCheckedChangeListener = listener
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}
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/**
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* <p>Interface definition for a callback to be invoked when the checked
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* radio button changed in this group.</p>
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*
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* Interface definition for a callback to be invoked when the checked
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* radio button changed in this group.
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*/
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public interface OnCheckedChangeListener {
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interface OnCheckedChangeListener {
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/**
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* <p>Called when the checked radio button has changed. When the
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* selection is cleared, checkedId is -1.</p>
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*
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* Called when the checked radio button has changed. When the
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* selection is cleared, checkedId is -1.
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*
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* @param group the group in which the checked radio button has changed
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* @param checkedId the unique identifier of the newly checked radio button
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*/
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void onCheckedChanged(RadioGridGroup group, @IdRes int checkedId);
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fun onCheckedChanged(group: RadioGridGroup?, @IdRes checkedId: Int)
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}
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private class CheckedStateTracker implements CompoundButton.OnCheckedChangeListener {
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@Override
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public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
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private inner class CheckedStateTracker : CompoundButton.OnCheckedChangeListener {
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override fun onCheckedChanged(buttonView: CompoundButton, isChecked: Boolean) {
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// prevents from infinite recursion
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if (mProtectFromCheckedChange) {
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return;
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return
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}
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mProtectFromCheckedChange = true;
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if (mCheckedId != -1) {
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setCheckedStateForView(mCheckedId, false);
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mProtectFromCheckedChange = true
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if (checkedRadioButtonId != -1) {
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setCheckedStateForView(checkedRadioButtonId, false)
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}
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mProtectFromCheckedChange = false;
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int id = buttonView.getId();
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setCheckedId(id);
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mProtectFromCheckedChange = false
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val id = buttonView.id
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setCheckedId(id)
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}
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}
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/**
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* <p>A pass-through listener acts upon the events and dispatches them
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*
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* A pass-through listener acts upon the events and dispatches them
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* to another listener. This allows the table layout to set its own internal
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* hierarchy change listener without preventing the user to setup his.</p>
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* hierarchy change listener without preventing the user to setup his.
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*/
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private class PassThroughHierarchyChangeListener implements
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ViewGroup.OnHierarchyChangeListener {
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private ViewGroup.OnHierarchyChangeListener mOnHierarchyChangeListener;
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private inner class PassThroughHierarchyChangeListener : OnHierarchyChangeListener {
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var mOnHierarchyChangeListener: OnHierarchyChangeListener? = null
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/**
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* {@inheritDoc}
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*/
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@Override
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public void onChildViewAdded(View parent, View child) {
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if (parent == RadioGridGroup.this && child instanceof RadioButton) {
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int id = child.getId();
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override fun onChildViewAdded(parent: View, child: View) {
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if (parent === this@RadioGridGroup && child is RadioButton) {
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var id = child.getId()
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// generates an id if it's missing
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if (id == View.NO_ID) {
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id = ViewUtils.generateViewId();
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child.setId(id);
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if (id == NO_ID) {
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id = ViewUtils.generateViewId()
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child.setId(id)
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}
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((RadioButton) child).setOnCheckedChangeListener(
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mChildOnCheckedChangeListener);
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}
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if (mOnHierarchyChangeListener != null) {
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mOnHierarchyChangeListener.onChildViewAdded(parent, child);
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child.setOnCheckedChangeListener(
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mChildOnCheckedChangeListener
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)
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}
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mOnHierarchyChangeListener?.onChildViewAdded(parent, child)
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void onChildViewRemoved(View parent, View child) {
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if (parent == RadioGridGroup.this && child instanceof RadioButton) {
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((RadioButton) child).setOnCheckedChangeListener(null);
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}
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if (mOnHierarchyChangeListener != null) {
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mOnHierarchyChangeListener.onChildViewRemoved(parent, child);
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override fun onChildViewRemoved(parent: View, child: View) {
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if (parent === this@RadioGridGroup && child is RadioButton) {
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child.setOnCheckedChangeListener(null)
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}
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mOnHierarchyChangeListener?.onChildViewRemoved(parent, child)
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}
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}
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companion object {
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private val RADIO_ATTRS = intArrayOf(android.R.attr.checkedButton)
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}
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}
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Reference in new issue
Block a user