activity_main.xmlexample_menu.xmlMainActivity.javastyles.xml
<?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout 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="com.codinginflow.contextualactionmodeexample.MainActivity"> <TextView android:id="@+id/text_view" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" android:textSize="30sp" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toTopOf="parent" /> </android.support.constraint.ConstraintLayout>
<?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/option_1" android:icon="@drawable/ic_delete" android:title="Option 1" /> <item android:id="@+id/option_2" android:icon="@drawable/ic_share" android:title="Option 2" /> </menu>
package com.codinginflow.contextualactionmodeexample; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.support.v7.view.ActionMode; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends AppCompatActivity { private ActionMode mActionMode; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); TextView textView = findViewById(R.id.text_view); textView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { if (mActionMode != null) { return false; } mActionMode = startSupportActionMode(mActionModeCallback); return true; } }); } private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() { @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) { mode.getMenuInflater().inflate(R.menu.example_menu, menu); mode.setTitle("Choose your option"); return true; } @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) { return false; } @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) { switch (item.getItemId()) { case R.id.option_1: Toast.makeText(MainActivity.this, "Option 1 selected", Toast.LENGTH_SHORT).show(); mode.finish(); return true; case R.id.option_2: Toast.makeText(MainActivity.this, "Option 2 selected", Toast.LENGTH_SHORT).show(); mode.finish(); return true; default: return false; } } @Override public void onDestroyActionMode(ActionMode mode) { mActionMode = null; } }; }
<resources> <!-- Base application theme. --> <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> <!-- Customize your theme here. --> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> <item name="actionModeBackground">@color/colorPrimary</item> <item name="windowActionBarOverlay">true</item> </style> </resources>