Android在recycleview中进行全选和取消全选

[{"title":"（ 1590 个子文件 23.35MB ） Android在recycleview中进行全选和取消全选","children":[{"title":"gradlew <span style='color:#111;'> 5.17KB </span>","children":null,"spread":false},{"title":"settings.gradle <span style='color:#111;'> 15B </span>","children":null,"spread":false},{"title":"MyAllSelect.iml <span style='color:#111;'> 888B </span>","children":null,"spread":false},{"title":"Gradle__com_android_support_versionedparcelable_28_0_0.xml <span style='color:#111;'> 536B </span>","children":null,"spread":false},{"title":"Gradle__com_android_support_customview_28_0_0.xml <span style='color:#111;'> 509B </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]