第一:要获取到输入的数字前必须获取到EditText中的所有数据,查看API,有如下方法
返回参数类型 方法名 方法的释义Editable getText() Return the text the TextView is displaying
通过该方法可以返回TextView正在显示的文字,而返回值的类型是Editable,这个类型看上去比较陌生
再看看Editable的API,如下:
public interfaceEditable
implements GetChars Spannable Appendable CharSequence
然后在CharSequence中有一个方法
abstract String toString() Returns a string with the same characters in the same order as in this sequence然后就可以获得一个String对象,然后对String的 *** 作是不是方便多了,通过取出每一个字符判断是否为数字,代码如下:
String str=et_inputgetText()toString();if(str != null && !""equals(str)){
for(int i=0;i<strlength();i++){
if(strcharAt(i)>=48 && strcharAt(i)<=57){//匹配数字
str2+=strcharAt(i);
}
}
Systemoutprintln(str2);
bbsetOnClickListener(
new ViewOnClickListener()
{
public void onClick(View view)
{
String s1=ttgetText()toString();
tvsetText(s1);
}
}
);
package comexampleqq;
import androidosBundle;
import androidappActivity;
import androidappAlertDialog;
import androidappDialog;
import androidcontentDialogInterface;
import androidcontentIntent;
import androidviewLayoutInflater;
import androidviewMenu;
import androidviewView;
import androidviewViewOnClickListener;
import androidwidgetButton;
import androidwidgetEditText;
public class MainActivity extends Activity {
private Button btn;
private EditText et;
private EditText et2;
@Override
protected void onCreate(Bundle savedInstanceState) {
superonCreate(savedInstanceState);
setContentView(Rlayoutactivity_main);
et = (EditText)findViewById(RideditText1);
et2 = (EditText)findViewById(RideditText2);
btn = (Button)findViewById(Ridbutton1);
btnsetOnClickListener(new OnClickListener(){
@Override
问题我自己解决了,发出来大家分享下子,我监听的事件如下:mEditTextlsetOnEditorActionListener(new onEditorActionListener() { @Override public boolean onEditorAction(TextView v, int actionId, keyEvent event) { Logd(TAG, mEditTextgetText()toString()); return false; }});如上方法,当在你按下键盘上的“完成”键时,就会打印出此时mEditText中的内容,也就达到我想要的目的了
您好:
package comexmythandroid;
public class ListEditorAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private List<Map<String, Object>> mData;// 存储的EditText值
public Map<String, String> editorValue = new HashMap<String, String>();//
public ListEditorAdapter(Context context, List<Map<String, Object>> data) {
mData = data;
mInflater = LayoutInflaterfrom(context);
init();
}
// 初始化
private void init() {
editorValueclear();
}
@Override
public int getCount() {
return mDatasize();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
private Integer index = -1;
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
// convertView为null的时候初始化convertView。
if (convertView == null) {
holder = new ViewHolder();
convertView = mInflaterinflate(Rlayoutlistview_item, null);
holdername = (TextView) convertView
findViewById(Ridlist_item_name);
holdertitle = (TextView) convertView
findViewById(Ridlist_item_title);
holdervalue = (EditText) convertView
findViewById(Ridlist_item_inputvalue);
holdervaluesetTag(position);
holderuserkey = (TextView) convertViewfindViewById(Riduser_key);
holdervaluesetOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (eventgetAction() == MotionEventACTION_UP) {
index = (Integer) vgetTag();
}
return false;
}
});
class MyTextWatcher implements TextWatcher {
public MyTextWatcher(ViewHolder holder) {
mHolder = holder;
}
private ViewHolder mHolder;
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
}
@Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
@Override
public void afterTextChanged(Editable s) {
if (s != null && !""equals(stoString())) {
int position = (Integer) mHoldervaluegetTag();
mDataget(position)put("list_item_inputvalue",
stoString());// 当EditText数据发生改变的时候存到data变量中
}
}
}
holdervalueaddTextChangedListener(new MyTextWatcher(holder));
convertViewsetTag(holder);
} else {
holder = (ViewHolder) convertViewgetTag();
holdervaluesetTag(position);
}
Object value = mDataget(position)get("list_item_name");
if (value != null) {
holdernamesetText((String) value);
}
value = mDataget(position)get("list_item_title");
if (value != null) {
holdertitlesetText(valuetoString());
}
value = mDataget(position)get("user_key");
if (value != null) {
holderuserkeysetText(valuetoString());
} else {
holderuserkeysetText("-1");
}
value = mDataget(position)get("list_item_inputvalue");
if (value != null && !""equals(value)) {
holdervaluesetText(valuetoString());
} else {
String key = mDataget(position)get("user_key")toString();
String inputValue = editorValueget(key);
holdervaluesetText(inputValue);
}
holdervalueclearFocus();
if (index != -1 && index == position) {
holdervaluerequestFocus();
}
return convertView;
}
public final class ViewHolder {
public TextView name;
public TextView title;
public EditText value;// ListView中的输入
public TextView userkey;// 用来定义的标志性主键,可不用关心
}
}
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