所以我有一个视图，它有两个使用 textwatchers 作为文本更改侦听器的编辑文本。当第一个编辑文本的值发生更改时，计算一个新值并将其设置为第二个编辑文本，反之亦然。我在设置文本之前删除了文本观察器。我面临的问题是，当我在第一个或第二个编辑文本框中输入内容时，它只需要一个或两个数字并且停止接受任何输入。光标从结尾移动到开头。 这是课程
public class CurrencyView extends RelativeLayout implements ICustomView{
private class CustomOnClick implements OnClickListener{
@Override
public void onClick(View v) {
final TextView view = (TextView)v;
final String options[] = ConversionTypes.getCurrencyTypes();
AlertDialog.Builder builder = new AlertDialog.Builder(rContext);
builder.setItems(options, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
view.setText(options[which]);
convert(view.getId());
}
});
builder.show();
}
}
private class CustomTextWatcher implements TextWatcher{
int ID;
@Override
public void afterTextChanged(Editable s) {
convert(ID);
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
if(s.toString().equals(type1Value.getText().toString())){
ID=11;
}
else{
ID=22;
}
}
@Override
public void onTextChanged(CharSequence s, int start, int before,
int count) {}
}
private TextView currencyType1;
private LayoutParams currencyType1LP;
private TextView currencyType2;
private LayoutParams currencyType2LP;
private EditText type1Value;
private LayoutParams type1ValueLP;
private EditText type2Value;
private LayoutParams type2ValueLP;
private CustomTextWatcher fCustomTextWatcher = new CustomTextWatcher();
private ArrayList<Double> rates = new ArrayList<Double>();
private Context rContext;
private int screenWidth;
private ListView rPopularConversions;
private long lastRefreshed;
private TextView lastRefeshedView;
private void addListeners() {
currencyType1.setOnClickListener(new CustomOnClick());
currencyType2.setOnClickListener(new CustomOnClick());
addEditTextListeners();
}
private void addEditTextListeners() {
type1Value.addTextChangedListener(fCustomTextWatcher);
type2Value.addTextChangedListener(fCustomTextWatcher);
}
private void convert(int i) {
removeAllListeners();
if(i == 11 || i == 1 ){
if(!Formatting.isEmptyOrNull(type2Value)){
double from = rates.get(getLocation(currencyType2));
double to = rates.get(getLocation(currencyType1));
Currency c = new Currency(from,to, Double.valueOf(type2Value.getText().toString()));
type1Value.setText(String.valueOf(Formatting.roundOff(c.getResult())));
}
}
if(i == 22 || i==2 ){
if(!Formatting.isEmptyOrNull(type1Value)){
double from = rates.get(getLocation(currencyType1));
double to = rates.get(getLocation(currencyType2));
Currency c = new Currency(from, to, Double.valueOf(type1Value.getText().toString()));
type2Value.setText(String.valueOf(Formatting.roundOff(c.getResult())));
}
}
addEditTextListeners();
}
private int getLocation(TextView tv) {
for (int i = 0; i < ConversionTypes.getCurrencyTypes().length; i++) {
if(tv.getText().toString().equals(ConversionTypes.getCurrencyTypes()[i])){
return i;
}
}
return 0;
}
private void initialize() {
currencyType1 = CustomObject.getCustomTextView(rContext, 1, Color.parseColor("#63879F"), Color.WHITE, 16, ConversionTypes.getCurrencyTypes()[121]);
currencyType2 = CustomObject.getCustomTextView(rContext, 2, Color.parseColor("#63879F"), Color.WHITE, 16, ConversionTypes.getCurrencyTypes()[121]);
type1Value = CustomObject.getCustomInputBox(rContext, 35, "1", "Enter value", new int[]{}, 11);
type1Value.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
type2Value = CustomObject.getCustomInputBox(rContext, 35, "1", "Enter value", new int[]{}, 22);
type2Value.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
int orientation = ((WindowManager) rContext.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getRotation();
if (orientation == Surface.ROTATION_0 || orientation == Surface.ROTATION_180) {
loadPotraitView();
}
else {
loadLandscapeView();
}
}
@Override
public void loadLandscapeView() {
lastRefreshed = rContext.getSharedPreferences("com.rokzin.converto_preferences", 0).getLong("LastRefreshed", 0);
screenWidth = rContext.getResources().getDisplayMetrics().widthPixels;
removeAllViews();
rPopularConversions = new ListView(rContext);
RelativeLayout.LayoutParams listLP = CustomObject.getCustomParams(screenWidth, LayoutParams.WRAP_CONTENT, new int[]{});
listLP.addRule(RelativeLayout.BELOW, type2Value.getId());
currencyType1LP = CustomObject.getCustomParams(screenWidth * 9/20, 120, new int[]{RelativeLayout.ALIGN_PARENT_LEFT,RelativeLayout.ALIGN_PARENT_TOP});
currencyType2LP = CustomObject.getCustomParams(screenWidth * 9/20, 120, new int[]{RelativeLayout.ALIGN_PARENT_RIGHT,RelativeLayout.ALIGN_PARENT_TOP});
type1ValueLP = CustomObject.getCustomParams(screenWidth * 9/20, 120, new int[]{RelativeLayout.ALIGN_PARENT_LEFT});
type2ValueLP = CustomObject.getCustomParams(screenWidth * 9/20, 120, new int[]{RelativeLayout.ALIGN_PARENT_RIGHT});
type1ValueLP.addRule(RelativeLayout.BELOW, currencyType1.getId());
type2ValueLP.addRule(RelativeLayout.BELOW, currencyType2.getId());
this.addView(currencyType1, currencyType1LP);
TextView equalTo = CustomObject.getCustomTextView(rContext, 111, Color.TRANSPARENT, Color.parseColor("#63879F"), 24, "=");
RelativeLayout.LayoutParams params = CustomObject.getCustomParams(screenWidth*2/20, 240, new int[]{RelativeLayout.ALIGN_PARENT_TOP, RelativeLayout.CENTER_HORIZONTAL});
equalTo.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL);
this.addView(equalTo, params);
this.addView(currencyType2, currencyType2LP);
this.addView(type1Value,type1ValueLP);
this.addView(type2Value,type2ValueLP);
this.addView(rPopularConversions,listLP);
removeAllListeners();
addListeners();
}
@Override
public void loadPotraitView() {
lastRefreshed = rContext.getSharedPreferences("com.rokzin.converto_preferences", 0).getLong("LastRefreshed", 0);
screenWidth = rContext.getResources().getDisplayMetrics().widthPixels;
removeAllViews();
rPopularConversions = new ListView(rContext);
RelativeLayout.LayoutParams listLP = CustomObject.getCustomParams(screenWidth, LayoutParams.WRAP_CONTENT, new int[]{});
listLP.addRule(RelativeLayout.BELOW, currencyType2.getId());
currencyType1LP = CustomObject.getCustomParams(screenWidth * 1/3, 120, new int[]{RelativeLayout.ALIGN_PARENT_LEFT,RelativeLayout.ALIGN_PARENT_TOP});
currencyType2LP = CustomObject.getCustomParams(screenWidth * 1/3, 120, new int[]{});
type1ValueLP = CustomObject.getCustomParams(screenWidth * 2/3, 120, new int[]{RelativeLayout.ALIGN_PARENT_TOP});
type2ValueLP = CustomObject.getCustomParams(screenWidth * 2/3, 120, new int[]{});
type1ValueLP.addRule(RelativeLayout.RIGHT_OF, currencyType1.getId());
type2ValueLP.addRule(RelativeLayout.BELOW, currencyType1.getId());
currencyType2LP.addRule(RelativeLayout.RIGHT_OF, type2Value.getId());
currencyType2LP.addRule(RelativeLayout.BELOW, type1Value.getId());
this.addView(currencyType1, currencyType1LP);
this.addView(type1Value,type1ValueLP);
this.addView(type2Value,type2ValueLP);
this.addView(currencyType2, currencyType2LP);
this.addView(rPopularConversions,listLP);
removeAllListeners();
addListeners();
}
public void removeAllListeners(){
type1Value.removeTextChangedListener(fCustomTextWatcher);
type2Value.removeTextChangedListener(fCustomTextWatcher);
}
}