andorid 菜单 进度条

activity_ui2.xml

<?xml version="1.0" encoding="utf-8"?>
<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: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="com.hanqi.application3.UIActivity2"
    android:orientation="vertical">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="长按触发上下文菜单"
        android:id="@+id/bt_changan"/>

    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/pb_1"/>

    <ProgressBar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        style="?android:attr/progressBarStyleHorizontal"
        android:max="100"
        android:progress="50"
        android:secondaryProgress="70"
        android:id="@+id/pb_2"/>
    <!--progress  当前进度-->
    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="@android:style/Widget.ProgressBar.Small"/>
    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="@android:style/Widget.ProgressBar.Large"/>
    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="@android:style/Widget.ProgressBar.Inverse"/>
    <ProgressBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        style="@android:style/Widget.ProgressBar.Large.Inverse"/>

    <SeekBar
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:max="100"
        android:progress="20"
        android:secondaryProgress="40"
        android:id="@+id/sb_1"/>
    <RatingBar
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:numStars="6"
        android:rating="3"
        android:isIndicator="true"/>
    <!--numStars 设置几颗星

    isIndicator 是否不准修改-->

</LinearLayout>

UIActivity2.java

package com.hanqi.application3;

import android.app.Activity;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.SubMenu;
import android.view.View;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.Toast;

public class UIActivity2 extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_ui2);

        Button bt_changan=(Button)findViewById(R.id.bt_changan);
        // 创建上下文菜单监听
        bt_changan.setOnCreateContextMenuListener(this);

        //bt_changan.setOnContextClickListener();创建监听
        //进度条
        //final
        final ProgressBar pb_1 = (ProgressBar)findViewById(R.id.pb_1);
        final ProgressBar pb_2 = (ProgressBar)findViewById(R.id.pb_2);
        SeekBar sb_1=(SeekBar)findViewById(R.id.sb_1);

        sb_1.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            //进度被改变
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                pb_2.setProgress(progress);
            }
            //开始拖动
            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }
            //结束拖动
            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

                pb_2.setProgress(seekBar.getProgress());

                if(seekBar.getProgress() == seekBar.getMax())
                {
                    //设置不可见INVISIBLE  占有空间，但是隐藏
                    //GONE 直接取消
                    pb_1.setVisibility(View.GONE);
                }
                else
                {
                    //可见VISIBLE
                    pb_1.setVisibility(View.VISIBLE);
                }

            }
        });
    }

    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {

        menu.add(0,1,0,"添加");
        menu.add(0,2,1,"修改");
        menu.add(0, 3, 2, "删除");
        SubMenu m = menu.addSubMenu(0, 4, 3, "子菜单");

        m.add(0,41,0,"子菜单项1");
        m.add(0,42,0,"子菜单项2");
        m.add(0,43,0,"子菜单项3");

//        MenuInflater mi = getMenuInflater();
//        mi.inflate(R.menu.mymenu, menu);

        super.onCreateContextMenu(menu, v, menuInfo);
    }

    @Override
    public boolean onContextItemSelected(MenuItem item) {
        switch (item.getItemId())
        {
            case R.id.it2:
                Toast.makeText(UIActivity2.this, "触发了添加1功能", Toast.LENGTH_SHORT).show();
                break;
            case R.id.it1:
                Toast.makeText(UIActivity2.this, "触发了删除1功能", Toast.LENGTH_SHORT).show();
                break;
        }

        return super.onContextItemSelected(item);
    }

    @Override
    //重写  创建选项菜单的方法
    public boolean onCreateOptionsMenu(Menu menu) {
        //添加菜单项
        //纯编码模式
//        menu.add(0,1,0,"添加");
//        menu.add(0,2,2,"删除");
//        menu.add(0,3,1,"修改");
        //加载菜单文件模方式
        //1.获取一个菜单加载器
        MenuInflater mi = getMenuInflater();
        mi.inflate(R.menu.mymenu, menu);

        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        //item.getTitle() 加载标题
        //Toast.makeText(UIActivity2.this, "选中的菜单项是"+item.getTitle(), Toast.LENGTH_SHORT).show();
        //根据菜单项的不同相应不同的功能
        //获取Item的id
        switch (item.getItemId())
        {
            case 1:

                Toast.makeText(UIActivity2.this, "触发了添加功能", Toast.LENGTH_SHORT).show();
                break;
            case 2:
                Toast.makeText(UIActivity2.this, "触发了删除功能", Toast.LENGTH_SHORT).show();
                break;
            case 3:
                Toast.makeText(UIActivity2.this, "触发了修改功能", Toast.LENGTH_SHORT).show();
                break;

            case R.id.it1:
                Toast.makeText(UIActivity2.this, "触发了添加1功能", Toast.LENGTH_SHORT).show();
                break;
            case R.id.it2:
                Toast.makeText(UIActivity2.this, "触发了删除1功能", Toast.LENGTH_SHORT).show();
                break;
        }

        return super.onOptionsItemSelected(item);
    }
}