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);

    }

}