首先是文字可选，需要添加如下的属性
android:textIsSelectable="true"
edittext不能加这个属性，默认就是可选择的，加了以后无法编辑了。
系统默认的可能长这样
image.png
如果要修改这个弹框咋办？
需要给这个控件通过方法setCustomSelectionActionModeCallback设置如下回调，自己来处理
先看下这个方法的注释,注释里默认的item的id，如果你想单独删除哪个，可以通过menu的remove方法删掉
/**
* If provided, this ActionMode.Callback will be used to create the ActionMode when text
* selection is initiated in this View.
*
* <p>The standard implementation populates the menu with a subset of Select All, Cut, Copy,
* Paste, Replace and Share actions, depending on what this View supports.
*
* <p>A custom implementation can add new entries in the default menu in its
* {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, android.view.Menu)}
* method. The default actions can also be removed from the menu using
* {@link android.view.Menu#removeItem(int)} and passing {@link android.R.id#selectAll},
* {@link android.R.id#cut}, {@link android.R.id#copy}, {@link android.R.id#paste},
* {@link android.R.id#replaceText} or {@link android.R.id#shareText} ids as parameters.
*
* <p>Returning false from
* {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, android.view.Menu)}
* will prevent the action mode from being started.
*
* <p>Action click events should be handled by the custom implementation of
* {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode,
* android.view.MenuItem)}.
*
* <p>Note that text selection mode is not started when a TextView receives focus and the
* {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in
* that case, to allow for quick replacement.
*/
public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) {
createEditorIfNeeded();
mEditor.mCustomSelectionActionModeCallback = actionModeCallback;
}
我们的简单实现
//menu文件夹下弄个menu的资源文件select_menu2.xml
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/Informal22"
android:title="自定义11" />
<item
android:id="@+id/Informal33"
android:title="自定义111111" />
</menu>
et_1.customSelectionActionModeCallback = object : ActionMode.Callback2() {
override fun onActionItemClicked(mode: ActionMode, item: MenuItem): Boolean {
println("2==============onActionItemClicked===" + item.title)
if (item.itemId==android.R.id.selectAll) {
mode.invalidate() // 这样重新弹框，完事全选就没了，因为这时候已经是全选了。
} else {
mode.finish() //关闭弹框
}
return false
}
//长按文字这个方法最先执行
override fun onCreateActionMode(mode: ActionMode, menu: Menu): Boolean {
println("2==============onCreateActionMode===" + menu.size())
menu.clear()
mode.menuInflater.inflate(R.menu.select_menu2, menu)
return true //返回false就不会弹框了。。
}
//然后会执行这个方法，这个方法会执行5次。。
override fun onPrepareActionMode(mode: ActionMode, menu: Menu): Boolean {
println("2==============onPrepared===" + menu.size())
//上边的select_menu2里边只有2个，可这里打印的是3个，下边分析原因。
// 如果系统提供的一个都不要，那么把onCreateActionMode的代码写在这里
return true
}
override fun onDestroyActionMode(mode: ActionMode) {
println("2==============onDestroyActionMode===" + mode.title)
}
}
下边分析下为啥,上边的回调都是在一个Editor的类里调用的，如下边
Editor里有个private class TextActionModeCallback extends ActionMode.Callback2的类。
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
updateSelectAllItem(menu);
updateReplaceItem(menu);
updateAssistMenuItem(menu);
//上边3行代码，就是系统根据条件加上了这3个，所以我们在onCreateActionMode里明明清空之后加了2个，
//为啥到这里又多了一个。
Callback customCallback = getCustomCallback();
if (customCallback != null) {
return customCallback.onPrepareActionMode(mode, menu);
}
return true;
}
另外默认的选项的点击事件可以在textview里下边的方法里查到
return mTextView.onTextContextMenuItem(item.getItemId());
