Java 从 android 中的 SeekBar 获取值
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原文地址: http://stackoverflow.com/questions/19227722/
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Getting values from SeekBar in android
提问by
How do I get values from a SeekBar?
我如何从 a 中获取值SeekBar？
- I have a code of a class that has three SeekBars (
PRICEbar) - I want to pass the values of these SeekBars to next Activity (screen) as Intents
- I know how toimplement OnClickListener but how can I extract the values from the SeekBars?
- 我有一个包含三个 SeekBars (
PRICEbar)的类的代码 - 我想将这些 SeekBars 的值作为 Intent 传递给下一个 Activity（屏幕）
- 我知道如何实现 OnClickListener 但如何从 SeekBars 中提取值？
ex:if PRICEbaris pointing to value 10 ... I need to get the value of 10
例如：如果PRICEbar指向值 10 ...我需要获得 10 的值
Filters.java
过滤器.java
public class Filters extends Activity implements OnSeekBarChangeListener{
// declare text objects variables
private SeekBar PRICEbar;
private TextView PRICEtextProgress,DISTANCEtextProgress, RATINGtextProgress;
Button back;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// load the layout
setContentView(R.layout.filters);
PRICEbar = (SeekBar)findViewById(R.id.PRICEseekBarID); // make seekbar object
PRICEbar.setOnSeekBarChangeListener(this);
PRICEbar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
PRICEtextProgress = (TextView)findViewById(R.id.PRICEtextViewProgressID);
PRICEtextProgress.setText("Price:: Rs "+progress);
seekBar.setMax(100);
}
});
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (seekBar == PRICEbar)
PRICEtextProgress.setText("Price:: Rs "+progress);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
}
采纳答案by Bryan Herbst
The SeekBarclass is a subclass of ProgressBar, which contains a getProgress()method.
的SeekBar类是的一个子类ProgressBar，其中包含一个getProgress()方法。
Calling PRICEbar.getProgress()will return the value you are looking for.
调用PRICEbar.getProgress()将返回您要查找的值。
