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点击按钮弹出菜单 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

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想了解基于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内容吗,0代码狂人0在本文为您仔细讲解点击按钮弹出菜单的相关知识和一些Code实例,欢迎阅读和指正,我们先划重点:点击按钮弹出菜单,android按钮弹出菜单,点击按钮弹出菜单,下面大家一起来学习吧。

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。

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