複数のチップの選択を処理したいのですが、Chipgroup.setOnCheckedChangedListener(); app:singleSelection = "true"を追加するとメソッドが機能し、そうすると複数のチップを選択できなくなります。chipgroup から複数のチップを選択する方法がわかりません。
MainActivity.java
private ChipGroup chipGroup;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
chipGroup = findViewById(R.id.chipg);
for (int i = 0; i < 10; i++) {
ChipMaking(String.valueOf(i));
}
chipGroup.setOnCheckedChangeListener(new ChipGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(ChipGroup chipGroup, @IdRes int i) {
Chip chip = chipGroup.findViewById(i);
Toast.makeText(getApplicationContext(), "Chip is " + chip.getText().toString(), Toast.LENGTH_SHORT).show();
}
});
}
public void ChipMaking(String tag) {
Chip chip = new Chip(this);
chip.setId(Integer.parseInt(tag));
chip.setText(tag);
chip.setTextAppearanceResource(R.style.ChipTextStyle);
chip.setPaddingRelative(5, 5, 5, 5);
chip.setElevation(5);
chip.setCheckable(true);
chip.setClickable(true);
chipGroup.addView(chip);
}
MainActivity.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="20dp">
<com.google.android.material.chip.ChipGroup
android:id="@+id/chipg"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
style="@style/Widget.MaterialComponents.Chip.Choice"
android:layout_marginTop="20dp"
android:foregroundGravity="center">
</com.google.android.material.chip.ChipGroup>
</ScrollView>
<!--app:singleSelection="true"-->
</RelativeLayout>