Android Material Design：PopupMenu

Android Material Design 引入的PopupMenu类似过去的上下文菜单，但是更灵活。 如图所示：

现在给出实现上图PopupMenu的代码。 本例是一个普通的Button触发弹出PopupMenu。

测试的MainActivity.java ：

package zhangphil.materialdesign; import android.app.Activity; import android.os.Bundle; import android.support.v.widget.PopupMenu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final Button button = (Button) findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showPopupMenu(button); } }); } private void showPopupMenu(View view) { // View当前PopupMenu显示的相对View的位置 PopupMenu popupMenu = new PopupMenu(this, view); // menu布局 popupMenu.getMenuInflater().inflate(R.menu.main, popupMenu.getMenu()); // menu的item点击事件 popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { Toast.makeText(getApplicationContext(), item.getTitle(), Toast.LENGTH_SHORT).show(); return false; } }); // PopupMenu关闭事件 popupMenu.setOnDismissListener(new PopupMenu.OnDismissListener() { @Override public void onDismiss(PopupMenu menu) { Toast.makeText(getApplicationContext(), "关闭PopupMenu", Toast.LENGTH_SHORT).show(); } }); popupMenu.show(); } } package zhangphil.materialdesign; import android.app.Activity; import android.os.Bundle; import android.support.v7.widget.PopupMenu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); final Button button = (Button) findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showPopupMenu(button); } }); } private void showPopupMenu(View view) { // View当前PopupMenu显示的相对View的位置 PopupMenu popupMenu = new PopupMenu(this, view); // menu布局 popupMenu.getMenuInflater().inflate(R.menu.main, popupMenu.getMenu()); // menu的item点击事件 popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem item) { Toast.makeText(getApplicationContext(), item.getTitle(), Toast.LENGTH_SHORT).show(); return false; } }); // PopupMenu关闭事件 popupMenu.setOnDismissListener(new PopupMenu.OnDismissListener() { @Override public void onDismiss(PopupMenu menu) { Toast.makeText(getApplicationContext(), "关闭PopupMenu", Toast.LENGTH_SHORT).show(); } }); popupMenu.show(); } }

MainActivity.java需要的activity_main布局文件只含一个普通的Android Button，在次不再赘述。

位于menu目录下的main.xml：

<menu 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" > <item android:id="@+id/action_open" android:orderInCategory=" android:title="打开" app:showAsAction="never"/> <item android:id="@+id/action_new" android:orderInCategory=" android:title="新建" app:showAsAction="never"/> <item android:id="@+id/action_del" android:orderInCategory=" android:title="删除" app:showAsAction="never"/> </menu>

以上内容给大家分享基于Android实现点击某个按钮让菜单选项从按钮周围指定位置弹出的相关知识，希望大家喜欢。