自定义文本选择菜单

TextSelection变更
1.展示效果：对比5.0的文本选择，6.0系统文本选择显示的菜单项可以被修改。
2.创建布局，添加TextView
3.获取TextView对象，注册回调监听
tv.setCustomSelectionActionModeCallBack()
4.自定义类实现监听接口 ActionMode.CallBack2
5.ActionMode.CallBack2的onCreateActionMode方法创建Meu对象
5.1创建MenuInflate对象
MenuInflate menuInflate = actionMode.getMenuInflater();
5.2填充menu对象
menuInflate.inflate(R.menu.main, menu);

5.3方法返回值设置为true，说明该方法已被拦截

主布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="欢迎来到我的世界"
        android:textIsSelectable="true" />

</LinearLayout>

菜单布局：

<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
    <item android:title="复制"
        android:id="@+id/copy"/>
    <item android:title="剪切"
        android:id="@+id/cut"/>
    <item android:title="粘贴"
        android:id="@+id/past"/>
    <group>
        <item android:title="我的世界" />
        <item android:title="Android" />
        <item android:title="IT程序员" />
    </group>
</menu>

MainActivity：

package com.example.testselection;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.widget.TextView;
import android.widget.Toast;


public class MainActivity extends Activity {

    private  ActionMode.Callback2 callback2 = new ActionMode.Callback2() {

        @Override
        public boolean onCreateActionMode(ActionMode actionMode, Menu menu) {
            //将菜单(menu)进行初始化转换成view操作
            MenuInflater menuInflater = actionMode.getMenuInflater();
            menuInflater.inflate(R.menu.menu_main,menu);
            return true;
        }

        @Override
        public boolean onPrepareActionMode(ActionMode actionMode, Menu menu) {
            return false;
        }

        @Override
        public boolean onActionItemClicked(ActionMode actionMode, MenuItem menuItem) {
            int id = menuItem.getItemId();

            if (id == R.id.copy) {
                Toast.makeText(getApplicationContext(),"复制copy",Toast.LENGTH_SHORT).show();
                Log.d("复制","copy");
            } else if (id == R.id.cut) {
                Toast.makeText(getApplicationContext(),"剪切cut",Toast.LENGTH_SHORT).show();
            } else if (id == R.id.past) {
                Toast.makeText(getApplicationContext(),"粘贴past",Toast.LENGTH_SHORT).show();
            }
            
            return true;
        }

        @Override
        public void onDestroyActionMode(ActionMode actionMode) {
        }

    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView tv = (TextView) findViewById(R.id.tv);
        tv.setCustomSelectionActionModeCallback(callback2);
    }
}

展示：