我想在点击按钮时动态创建EditText和ImageView。
ImageView从联系人列表中选择单个联系人并设置为EditText。 EditText也从用户那里获取价值。我想获取所有EditText的数据，并将值存储在SharedPreference。
HelpAlertActivity
public class HelpAlertActivity extends AppCompatActivity implements View.OnClickListener {
public SharedPreferences sharedpreference;
LinearLayout add_new_layout, mainLayout, image_btn_layout, buttonLayout;
FrameLayout frameLayout;
Button btn_one, bt_submit;
MyEditText et_one, et_two, etAdd;
ImageView image_one, image_two;
ImageButton imageButton;
FloatingActionButton fab;
SharedPreferences.Editor editor;
List<MyEditText> allEds;
List<ImageView> allImg;
ImageView imageView;
String contactOne, contactTwo, number1, number2, number3, number4, number5, number6, number7, number8, number9, number10, number11,
number12, number13;
StringBuilder stringBuilder;
GetContact mGetContact;
private int counter = 2, many = 1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_help_alert);
initialization();
}
private void initialization() {
sharedpreference = getSharedPreferences("preference", Context.MODE_APPEND);
editor = sharedpreference.edit();
mainLayout = (LinearLayout) findViewById(R.id.main_layout);
image_btn_layout = (LinearLayout) findViewById(R.id.image_btn_layout);
/* buttonLayout = (LinearLayout) findViewById(R.id.buttonLayout);
add_new_layout = (LinearLayout) findViewById(R.id.newLayout);
fab = (FloatingActionButton) findViewById(R.id.fab);*/
mGetContact = new GetContact();
et_one = (MyEditText) findViewById(R.id.contact_one);
et_two = (MyEditText) findViewById(R.id.contact_two);
image_one = (ImageView) findViewById(R.id.image_one);
image_two = (ImageView) findViewById(R.id.image_two);
// btn_one = (Button) findViewById(R.id.btn_one);
bt_submit = (Button) findViewById(R.id.bt_submit);
image_one.setOnClickListener(this);
image_two.setOnClickListener(this);
// btn_one.setOnClickListener(this);
bt_submit.setOnClickListener(this);
stringBuilder = new StringBuilder();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_one:
if (this.counter < 10) {
LinearLayout parentView = (LinearLayout) this.findViewById(R.id.main_layout);
LinearLayout childView = new LinearLayout(getApplicationContext());
etAdd = generateEditText(counter+1);
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(45, 45);
layoutParams.setMargins(0, 25, 20, 0);
imageView = new ImageView(this);
imageView.setBackgroundResource(R.drawable.add_contact);
imageView.setId(counter+1);
imageView.setAdjustViewBounds(true);
imageView.setLayoutParams(layoutParams);
imageView.setOnClickListener(handler);
/* imageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), counter+1);
}
});*/
//getValue(imageView);
allEds.add(etAdd);
allImg.add(imageView);
childView.addView(etAdd);
childView.addView(imageView);
parentView.addView(childView);
counter++;
//many++;
//editor.putInt("no_of_layouts", many);
} else {
// v.setEnabled(false);
}
break;
case R.id.image_one:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 1);
break;
case R.id.image_two:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 2);
break;
case R.id.bt_submit:
String ctone = et_one.getText().toString();
String ct_two = et_two.getText().toString();
//int size = allEds.size();
// String[] strings = new String[size];
/* for (int i = 0; i < allEds.size(); i++) {
strings[i] = allEds.get(i).getText().toString();
editor.putString("contact" + i, strings[i]);
Log.e("Added number", "" + i);
// Toast.makeText(this, "contact" + i, Toast.LENGTH_SHORT).show();
}*/
if (ctone.equals("") && ctone.isEmpty() || ct_two.equals("") && ct_two.isEmpty()) {
Toast.makeText(this, "Please enter mobile", Toast.LENGTH_SHORT).show();
} else {
editor.putString("contactOne", ctone);
editor.putString("contactTwo", ct_two);
editor.apply();
Toast.makeText(this, "Contact Saved ", Toast.LENGTH_SHORT).show();
startActivity(new Intent(this, MainActivity.class));
// }
break;
}
/*case R.id.fab:
buttonLayout.setVisibility(View.VISIBLE);
image_btn_layout.setVisibility(View.VISIBLE);
fab.setVisibility(View.INVISIBLE);
break;*/
}
}
View.OnClickListener handler = new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case 3:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 3);
break;
case 4:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 4);
break;
case 5:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 5);
break;
case 6:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 6);
break;
case 7:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 7);
break;
case 8:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 8);
break;
case 9:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 9);
break;
case 10:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 10);
break;
case 11:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 11);
break;
case 12:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 12);
break;
case 13:
startActivityForResult(new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI), 13);
break;
}
}
};
@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
super.onActivityResult(reqCode, resultCode, data);
switch (reqCode) {
case 1:
if (resultCode == RESULT_OK) {
String num = mGetContact.getdetails(data, getApplicationContext());
Log.e("ADDED NUMBER", num);
et_one.setText(num.replaceAll("[- ]", ""));
}
break;
case 2:
if (resultCode == RESULT_OK) {
number2 = mGetContact.getdetails(data, getApplicationContext());
Log.e("ADDED NUMBERo", number2);
et_two.setText(number2.replaceAll("[- ]", ""));
}
break;
case 3:
if (resultCode == RESULT_OK) {
number3 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number3.replaceAll("[- ]", ""));
}
break;
case 4:
if (resultCode == RESULT_OK) {
number4 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number4.replaceAll("[- ]", ""));
}
break;
case 5:
if (resultCode == RESULT_OK) {
number5 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number5.replaceAll("[- ]", ""));
}
break;
case 6:
if (resultCode == RESULT_OK) {
number6 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number6.replaceAll("[- ]", ""));
}
break;
case 7:
if (resultCode == RESULT_OK) {
number7 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number7.replaceAll("[- ]", ""));
}
break;
case 8:
if (resultCode == RESULT_OK) {
number8 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number8.replaceAll("[- ]", ""));
}
break;
case 9:
if (resultCode == RESULT_OK) {
number9 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number9.replaceAll("[- ]", ""));
}
break;
case 10:
if (resultCode == RESULT_OK) {
number10 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number10.replaceAll("[- ]", ""));
}
break;
case 11:
if (resultCode == RESULT_OK) {
number11 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number11.replaceAll("[- ]", ""));
}
break;
case 12:
if (resultCode == RESULT_OK) {
number12 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number12.replaceAll("[- ]", ""));
}
break;
case 13:
if (resultCode == RESULT_OK) {
number13 = mGetContact.getdetails(data, getApplicationContext());
etAdd.setText(number13.replaceAll("[- ]", ""));
}
break;
}
}
public MyEditText generateEditText(int id) {
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(0, 90, 1.0f);
layoutParams.setMargins(15, 10, 0, 0);
MyEditText et = new MyEditText(this);
et.setFilters(new InputFilter[]{new InputFilter.LengthFilter(13)});
et.setBackgroundResource(R.drawable.login_textfield_background);
et.setHint("Enter or Select number");
et.setInputType(InputType.TYPE_CLASS_NUMBER);
et.setPadding(35, 0, 30, 0);
et.setId(id);
et.setLayoutParams(layoutParams);
return et;
}
/* @Override
protected void onResume() {
super.onResume();
}*/
@Override
protected void onPause() {
super.onPause();
contactOne = sharedpreference.getString("contactOne", null);
contactTwo = sharedpreference.getString("contactTwo", null);
//*for (int i = 0; i < allEds.size(); i++) {
// stringBuilder.append(sharedpreference.getString("contact" + i, "") + ",");
}
@Override
protected void onResume() {
super.onResume();
et_one.setText(contactOne);
et_two.setText(contactTwo);
//* int size = allEds.size();
// String[] strings = new String[size];
// String[] lines = stringBuilder.toString().split(",");
// for (String s : lines) {
// etAdd.setText(s);
/**//* strings[i] = allEds.get(i).getText().toString();
sharedpreference.getString("contact" + i, "");*//**//*
}*//*
}*/
}
}
/* public ImageView generateImageView(int id) {
LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(45, 45);
layoutParams.setMargins(0, 25, 20, 0);
ImageView imageView = new ImageView(this);
imageView.setBackgroundResource(R.drawable.add_contact);
imageView.setId(id);
imageView.setAdjustViewBounds(true);
imageView.setLayoutParams(layoutParams);
return imageView;
}*/
<?xml version="1.0" encoding="utf-8"?>
<ScrollView android:layout_height="match_parent"
android:layout_width="match_parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:focusable="true"
android:focusableInTouchMode="true"
>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<test.com.helpalert.MyEditText
android:id="@+id/contact_one"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_weight="1.0"
android:freezesText="true"
android:background="@drawable/login_textfield_background"
android:hint="@string/contact_hint"
android:inputType="number"
android:paddingLeft="30dp"
android:paddingRight="30dp"
android:layout_marginLeft="10dp" />
<ImageView
android:id="@+id/image_one"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginEnd="10dp"
android:layout_marginTop="35dp"
android:adjustViewBounds="true"
android:background="@drawable/add_contact"
tools:ignore="ContentDescription"
android:layout_marginRight="10dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<test.com.helpalert.MyEditText
android:id="@+id/contact_two"
android:layout_width="0dp"
android:layout_height="60dp"
android:layout_marginStart="10dp"
android:layout_marginTop="10dp"
android:layout_weight="1.0"
android:freezesText="true"
android:background="@drawable/login_textfield_background"
android:hint="@string/contact_hint"
android:inputType="number"
android:paddingLeft="30dp"
android:paddingRight="30dp"
android:layout_marginLeft="10dp" />
<ImageView
android:id="@+id/image_two"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginEnd="10dp"
android:layout_marginTop="25dp"
android:adjustViewBounds="true"
android:background="@drawable/add_contact"
tools:ignore="ContentDescription"
android:layout_marginRight="10dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/main_layout"
android:orientation="horizontal"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:id="@+id/image_btn_layout"
android:orientation="vertical">
<Button
android:id="@+id/btn_one"
android:layout_width="50dp"
android:layout_height="50dp"
android:layout_marginBottom="10dp"
android:layout_marginTop="20dp"
android:adjustViewBounds="true"
android:background="@drawable/add_circular_button"
tools:ignore="ContentDescription" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:gravity="center"
>
<Button
android:id="@+id/bt_submit"
android:layout_width="wrap_content"
android:layout_height="46dp"
android:layout_gravity="center_horizontal"
android:background="@color/colorAccent"
android:text="@string/btn_submit"
android:layout_marginStart="20dp"
android:layout_marginEnd="30dp"
android:textColor="@color/white"
android:layout_marginLeft="20dp"
android:layout_marginRight="30dp" />
</LinearLayout>
</LinearLayout>
public class GetContact {
String num = "";
public String getdetails(Intent data, Context applicationContext) {
Cursor c = null;
Cursor numbers = null;
try {
Uri contactData = data.getData();
c = applicationContext.getContentResolver().query(contactData, null, null, null, null);
if (c.moveToFirst()) {
String contactId = c.getString(c.getColumnIndex(ContactsContract.Contacts._ID));
String hasNumber = c.getString(c.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));
if (Integer.valueOf(hasNumber) == 1) {
numbers = applicationContext.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId, null, null);
while (numbers.moveToNext())
num = numbers.getString(numbers.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
}
}
}finally {
if(c!=null ){
c.close();
}
}
return num;
}
}
答案 0 :(得分：1)
当您点击提交时，您应该循环搜索所有已添加的EditText并从中获取值。
试试这个：
String ct_one = et_one.getText().toString();
String ct_two = et_two.getText().toString();
List<String> strings = new ArrayList<>();
int index = 3; // the first dynamic id
MyEditText editText = (MyEditText) findViewById(index);
while (editText != null) {
strings.add(editText.getText().toString());
}
Log.d("found strings: " + ct_one + ", " + ct_two + ", and: " + Arrays.toString(strings));
<强>更新
您的SharedPreferences代码有点奇怪，首先您应该使用PreferenceManager.getDefaultSharedPreferences，除非您有充分的理由使用其他文件。
第二，您应该在编辑后立即commit / apply进行编辑，而不是保留一个打开的编辑器对象。
写入值：
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
Editor editor = prefs.edit();
editor.putString("value_one", ct_one);
editor.putString("value_two", ct_two);
for (int i = 0; i < strings.size(); i++) {
editor.putString("value" + i, strings.get(i));
}
editor.apply(); // actually saves the edits into the prefs file
读取值：
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
String ct_one = prefs.getString("value_one");
String ct_two = prefs.getString("value_two");
List<String> strings = new ArrayList<>();
int i = 0;
while (prefs.contains("value" + i)) {
strings.add(prefs.getString("value" + i));
}
顺便说一句，如果字符串的顺序不重要，您可以使用putStringSet / getStringSet代替循环代码
答案 1 :(得分：0)
我有一个创建食谱的项目。当我添加食谱时，我可以具有多种成分和多种准备状态。
最大的问题是要知道多少个并将所有编辑文本存储在一个字符串中（我只存储一个带有换行符的字符串）。
我在此网站上找到了另一种解决方案：https://prasans.info/add-edittexts-dynamically-and-retrieve-values-android/。
最简单的证明是从编辑文本的创建列表中进行，每次创建时都添加一个。最好的是，我现在可以为成分创建两个列表，为状态创建一个列表。
在活动开始时：
private ArrayList<EditText> ListEditText = new ArrayList<>();
创建新的编辑文本时（仅使用.addView）：
ListEditText.add(new_editText);
要获取信息时：
String text = "";
for (EditText editText : ListEditText) {
text += editText.getText().toString() + "\n";
}
// display text