SeekBar学习笔记

本文主要是介绍SeekBar学习笔记，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"android:paddingBottom="@dimen/activity_vertical_margin"android:paddingLeft="@dimen/activity_horizontal_margin"android:paddingRight="@dimen/activity_horizontal_margin"android:paddingTop="@dimen/activity_vertical_margin" ><SeekBarandroid:id="@+id/seek_bar"android:layout_width="match_parent"android:layout_height="wrap_content"android:maxHeight="1.5dp"android:minHeight="1.5dp"android:padding="0dp"android:progressDrawable="@drawable/seek_drawable"android:secondaryProgress="0"android:thumb="@drawable/seek_bar_thumb"android:thumbOffset="0dp" /><TextViewandroid:id="@+id/seek_bar_show"android:layout_width="match_parent"android:layout_height="0dp"android:layout_weight="1"android:textColor="#ff000000"android:textSize="16sp" /></LinearLayout>

drawable：

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" ><!-- 背景图 --><item android:id="@android:id/background"><shape><solid android:color="#ff51495e" /></shape></item><!-- 进和能量图 --><item android:id="@android:id/progress"><clip><shape><solid android:color="#ffffcc00" /></shape></clip></item><!-- 全部能量图 --><item android:id="@android:id/secondaryProgress"><clip><shape><solid android:color="#ff51495e" /></shape></clip></item></layer-list>

使用：

package com.bz.day02_seekbar;import com.example.day02_seekbar.R;import android.app.Activity;
import android.os.Bundle;
import android.text.method.ScrollingMovementMethod;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;public class MainActivity extends Activity implements OnSeekBarChangeListener {private SeekBar mSeekBar;private TextView mSeekBarText;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();  }private void initView() {mSeekBarText = (TextView) findViewById(R.id.seek_bar_show);mSeekBarText.setMovementMethod(ScrollingMovementMethod.getInstance());mSeekBar = (SeekBar) findViewById(R.id.seek_bar);mSeekBar.setMax(100);mSeekBar.setProgress(20);mSeekBar.setOnSeekBarChangeListener(this);}@Overridepublic void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {//seekBar progress changermSeekBarText.append("progressChanger: " + progress + "\r\n");}@Overridepublic void onStartTrackingTouch(SeekBar seekBar) {//开始拖动mSeekBarText.append("start: " + seekBar.getProgress() + "\r\n");}@Overridepublic void onStopTrackingTouch(SeekBar seekBar) {//停止拖动mSeekBarText.append("stop: " + seekBar.getProgress() + "\r\n");}}

效果图：

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