我创建了一个简单的项目,它使用连接到声音的SeekBars并连接到按钮的颜色。
我没有声音问题,但使用RGB色标。我写了代码但是当我在手机上安装apk时,我发现了一个错误。当我将光标移动到最后时,色标不完整,如下所示:
如果您看到,比例不在其颜色范围的末尾。其他两个RGB SeekBars也存在问题。
有代码,我做错了什么?
final SeekBar r=(SeekBar)findViewById(R.id.seekBar3);
final SeekBar g=(SeekBar)findViewById(R.id.seekBar4);
final SeekBar b=(SeekBar)findViewById(R.id.seekBar5);
r.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
seekr = r.getProgress();
seekg = g.getProgress();
seekb = b.getProgress();
button1.setBackgroundColor(
0xff000000
+ seekr * 0x10000
+ seekg * 0x100
+ seekb
);
button2.setBackgroundColor(
0xff000000
+ seekr * 0x10000
+ seekg * 0x100
+ seekb
);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
//mplayer.start();
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
//mplayer.stop();
}
});
g.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
seekr = r.getProgress();
seekg = g.getProgress();
seekb = b.getProgress();
button1.setBackgroundColor(
0xff000000
+ seekr * 0x10000
+ seekg * 0x100
+ seekb
);
button2.setBackgroundColor(
0xff000000
+ seekr * 0x10000
+ seekg * 0x100
+ seekb
);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
//mplayer.start();
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
//mplayer.stop();
}
});
b.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
seekr = r.getProgress();
seekg = g.getProgress();
seekb = b.getProgress();
button1.setBackgroundColor(
0xff000000
+ seekr * 0x10000
+ seekg * 0x100
+ seekb
);
button2.setBackgroundColor(
0xff000000
+ seekr * 0x10000
+ seekg * 0x100
+ seekb
);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
//mplayer.start();
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
//mplayer.stop();
}
});
}
XML:
<SeekBar
android:id="@+id/seekBar3"
android:layout_width="305dp"
android:layout_height="31dp"
tools:layout_editor_absoluteX="59dp"
tools:layout_editor_absoluteY="365dp"
android:layout_marginTop="25dp"
android:layout_below="@+id/button2"
android:layout_alignStart="@+id/button" />
<SeekBar
android:id="@+id/seekBar4"
android:layout_width="309dp"
android:layout_height="27dp"
tools:layout_editor_absoluteX="59dp"
tools:layout_editor_absoluteY="459dp"
android:layout_marginTop="30dp"
android:layout_below="@+id/seekBar3"
android:layout_alignStart="@+id/button" />
<SeekBar
android:id="@+id/seekBar5"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="@+id/seekBar4"
android:layout_below="@+id/seekBar4"
android:layout_marginTop="19dp"
android:layout_alignEnd="@+id/seekBar4" />
答案 0 :(得分:0)
您应该使用xml文件中的android:max="255"
将搜索栏的最大值定义为255。
正如在android文档中所写:
默认情况下,进度条在达到100时已满。如有必要,您可以使用android:max属性调整最大值(完整条的值)。