如何使用默认值在android中设置搜索栏..？
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how to set seek bar in android with default values..?
提问by krishnan
The maximum value of SeekBaris 100 then How to set a Seekbarvalues default as 50 (starting at 50%). The seek bar will be start at 50.
的最大值SeekBar为 100，然后如何将Seekbar值设置为默认值 50（从 50% 开始）。搜索栏将从 50 开始。
I got a sample code but it will start at 0 to 100. Please answer me if you have any idea... Thank you.
我有一个示例代码，但它会从 0 到 100 开始。如果您有任何想法，请回答我...谢谢。
public class MainActivity extends Activity implements OnSeekBarChangeListener{
private SeekBar bar; // declare seekbar object variable
// declare text label objects
private TextView textProgress,textAction;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
// load the layout
setContentView(R.layout.activity_main);
bar = (SeekBar)findViewById(R.id.seekBar1); // make seekbar object
bar.setOnSeekBarChangeListener(this); // set seekbar listener.
// since we are using this class as the listener the class is "this"
// make text label for progress value
textProgress = (TextView)findViewById(R.id.textViewProgress);
// make text label for action
textAction = (TextView)findViewById(R.id.textViewAction);
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
// TODO Auto-generated method stub
// change progress text label with current seekbar value
textProgress.setText("The value is: "+progress);
// change action text label to changing
textAction.setText("changing");
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
textAction.setText("starting to track touch");
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
seekBar.setSecondaryProgress(seekBar.getProgress());
textAction.setText("ended tracking touch");
}
}
回答by Muhammed Refaat
in XML :
在 XML 中：
android:progress="50" // or any other value
in Java :
在 Java 中：
mSeekbar.setProgress(50); // or any other value
and if you don't know what's the Max Value and just want to make it 50%:
如果您不知道 Max Value 是多少而只想将其设为50%：
mSeekbar.setProgress(mSeekbar.getMax()/2);
回答by Syed Raza Mehdi
回答by shellym
Set the MaxValue once before you set the progress value . In that way the system knows what proportion of the seekbar has to be colored.
在设置进度值之前设置一次 MaxValue。通过这种方式，系统知道必须对搜索栏的多大比例进行着色。
