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當我運行下面的代碼時，一切都變好，直到我改變seekBar的值。 onProgressChange更改myValue的文本值。我得到一個關閉的力量，它給了我下面的日誌貓條目。Android/Java變量超出範圍可能
在進行調試時，拋出的異常說它找不到ID 2，你可以告訴它是myValue，這是預期的。請讓我知道你在想什麼。 感謝
04-06 18:15:38.576: E/AndroidRuntime(25164):android.content.res.Resources$NotFoundException: String resource ID #0x2f
04-06 18:15:38.576: E/AndroidRuntime(25164): at android.content.res.Resources.getText(Resources.java:201)
04-06 18:15:38.576: E/AndroidRuntime(25164): at android.widget.TextView.setText(TextView.java:2877)
04-06 18:15:38.576: E/AndroidRuntime(25164): at thisPackage.Tabs.CustomSeekBar.onProgressChanged(CustomSeekBar.java:74)
ColorsActivity（主）
public class ColorsActivity extends Activity
{
CustomSeekBar red = new CustomSeekBar();
RelativeLayout theItem;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.seekbarlist);
RelativeLayout thisOne = (RelativeLayout)findViewById(R.id.mainLayout);
attachLayout(thisOne, red, "red", 1);
//attachLayout(thisOne, "blue", 2);
//attachLayout(thisOne, "green", 3);
// Amarino.connect(this, "00:11:11:21:05:53");
}
public void attachLayout(RelativeLayout layout, CustomSeekBar object, String label, int id)
{
theItem = object.createCustomSeekBar(this, label);
theItem.setId(id);
RelativeLayout.LayoutParams myLayoutParams = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
myLayoutParams.addRule(RelativeLayout.BELOW,id-1);
theItem.setLayoutParams(myLayoutParams);
layout.addView(theItem, id);
}
}
CustomSeekBar
public class CustomSeekBar implements SeekBar.OnSeekBarChangeListener {
Context myContext;
RelativeLayout myLayout;
TextView myValue;
TextView myLabel;
SeekBar mySeekBar;
public void CustomSeekBar(){
}
public RelativeLayout createCustomSeekBar(Context context, String label){
myContext = context;
myLayout = new RelativeLayout(myContext);
mySeekBar = new SeekBar(myContext);
myLabel = new TextView(myContext);
myValue = new TextView(myContext);
mySeekBar.setId(1);
myLabel.setId(2);
myValue.setId(3);
RelativeLayout.LayoutParams mySeekBarParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.FILL_PARENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams myLabelParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
RelativeLayout.LayoutParams myValueParams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, RelativeLayout.LayoutParams.WRAP_CONTENT);
int seekBarId = mySeekBar.getId();
int labelId = myLabel.getId();
myLabelParams.addRule(RelativeLayout.BELOW,seekBarId);
myValueParams.addRule(RelativeLayout.BELOW,seekBarId);
myValueParams.addRule(RelativeLayout.RIGHT_OF,labelId);
mySeekBar.setLayoutParams(mySeekBarParams);
myLabel.setLayoutParams(myLabelParams);
myValue.setLayoutParams(myValueParams);
myLabel.setText(label);
myValue.setText("hello");
mySeekBar.setOnSeekBarChangeListener(this);
myLayout.addView(myLabel);
myLayout.addView(myValue);
myLayout.addView(mySeekBar);
return myLayout;
}
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) {
myValue.setText(progress);
//Amarino.sendDataToArduino(myContext, "00:11:11:21:05:53", 'A', progress);
}
public void onStopTrackingTouch(SeekBar seekBar){
}
public void onStartTrackingTouch (SeekBar seekBar){
}
}