Android百度音乐滑动进度条SeekBar

Android百度音乐滑动进度条SeekBar

这种进度条是系统自带的

布局文件：activity_main.xml

<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:orientation="vertical"
tools:context=".MainActivity">

<SeekBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/sb_normal"
android:layout_gravity="center_horizontal" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/txt_cur" />
</LinearLayout>

展示视图控制文件：MainActivity

package com.example.lenovo.myapplication;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity{

private SeekBar sb_normal;
private TextView txt_cur;
private Context mContext;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = MainActivity.this;
bindViews();
}

private void bindViews() {
sb_normal = (SeekBar) findViewById(R.id.sb_normal);
txt_cur = (TextView) findViewById(R.id.txt_cur);
sb_normal.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
txt_cur.setText("当前进度值:" + progress + "  / 100 ");
}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
Toast.makeText(mContext, "触碰SeekBar", Toast.LENGTH_SHORT).show();
}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
Toast.makeText(mContext, "放开SeekBar", Toast.LENGTH_SHORT).show();
}
});
}
}

再来看一个

SeekBar定制的内容包括滑块，以及轨道

两个素材的名字

norm.png

press.png

布局文件：activity_main.xml

<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:orientation="vertical"
tools:context=".MainActivity">

<SeekBar
android:id="@+id/sb_normal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:maxHeight="5.0dp"
android:minHeight="5.0dp"
android:progressDrawable="@drawable/sb_bar"
android:thumb="@drawable/sb_thumb"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/txt_cur" />
</LinearLayout>

展示视图控制文件：MainActivity

package com.example.lenovo.myapplication;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.widget.SeekBar;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity{

private SeekBar sb_normal;
private TextView txt_cur;
private Context mContext;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = MainActivity.this;
bindViews();
}

private void bindViews() {
sb_normal = (SeekBar) findViewById(R.id.sb_normal);
txt_cur = (TextView) findViewById(R.id.txt_cur);
sb_normal.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
txt_cur.setText("当前进度值:" + progress + "  / 100 ");
}

@Override
public void onStartTrackingTouch(SeekBar seekBar) {
Toast.makeText(mContext, "触碰SeekBar", Toast.LENGTH_SHORT).show();
}

@Override
public void onStopTrackingTouch(SeekBar seekBar) {
Toast.makeText(mContext, "放开SeekBar", Toast.LENGTH_SHORT).show();
}
});
}
}

滑块状态Drawable：sb_thumb.xml

norm.png 和 press.png

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/press"/>
<item android:state_pressed="false" android:drawable="@drawable/norm"/>
</selector>

条形栏Bar的Drawable：sb_bar.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<solid android:color="#FFFFD042" />
</shape>
</item>
<item android:id="@android:id/secondaryProgress">
<clip>
<shape>
<solid android:color="#FFFFFFFF" />
</shape>
</clip>
</item>
<item android:id="@android:id/progress">
<clip>
<shape>
<solid android:color="#FF96E85D" />
</shape>
</clip>
</item>
</layer-list>