Android 编辑文本框需要保存状态。请帮忙!
我有一个EditText的代码,但我不知道如何为位于同一页的第二个EditText框生成相同的代码。这是我的密码:Android 编辑文本框需要保存状态。请帮忙!,android,text,edit,Android,Text,Edit,我有一个EditText的代码,但我不知道如何为位于同一页的第二个EditText框生成相同的代码。这是我的密码: package tryone.now.forfreenow; import android.app.Activity; import android.content.SharedPreferences; import android.os.Bundle; import android.widget.EditText; import android.widget.TextView;
package tryone.now.forfreenow;
import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
public class notepad extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
editBox =(EditText)findViewById(R.id.editText1);
}
protected void onResume() {
super.onResume();
SharedPreferences prefs = getPreferences(0);
String restoredText = prefs.getString("text", null);
if (restoredText != null) {
editBox.setText(restoredText, TextView.BufferType.EDITABLE);
int selectionStart = prefs.getInt("selection-start", -1);
int selectionEnd = prefs.getInt("selection-end", -1);
if (selectionStart != -1 && selectionEnd != -1) {
editBox.setSelection(selectionStart, selectionEnd);
}
}
}
protected void onPause() {
super.onPause();
SharedPreferences.Editor editor = getPreferences(0).edit();
editor.putString("text", editBox.getText().toString());
editor.putInt("selection-start", editBox.getSelectionStart());
editor.putInt("selection-end", editBox.getSelectionEnd());
editor.commit();
}
private EditText editBox;
}
我在回答我自己的问题。在两个编辑文本框上保存状态100%有效
package tryone.now.forfreenow;
import android.app.Activity;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.widget.EditText;
import android.widget.TextView;
public class notepad extends Activity
{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
editBox = (EditText) findViewById(R.id.editText1);
editBox2 = (EditText) findViewById(R.id.editText2);
}
protected void onResume() {
super.onResume();
SharedPreferences prefs = getPreferences(0);
String restoredText = prefs.getString("text", null);
if (restoredText != null)
{
editBox.setText(restoredText, TextView.BufferType.EDITABLE);
int selectionStart = prefs.getInt("selection-start", -1);
int selectionEnd = prefs.getInt("selection-end", -1);
if (selectionStart != -1 && selectionEnd != -1)
{
editBox.setSelection(selectionStart, selectionEnd);
}
SharedPreferences prefs2 = getPreferences(1);
String restoredText2 = prefs2.getString("text2", null);
if (restoredText2 != null)
{
editBox2.setText(restoredText2, TextView.BufferType.EDITABLE);
int selectionStart2 = prefs2.getInt("selection-start2", -1);
int selectionEnd2 = prefs2.getInt("selection-end2", -1);
if (selectionStart2 != -1 && selectionEnd2 != -1)
{
editBox2.setSelection(selectionStart2, selectionEnd2);
}
}
}
}
protected void onPause() {
super.onPause();
SharedPreferences.Editor editor = getPreferences(0).edit();
editor.putString("text", editBox.getText().toString());
editor.putInt("selection-start", editBox.getSelectionStart());
editor.putInt("selection-end", editBox.getSelectionEnd());
editor.commit();
SharedPreferences.Editor editor2 = getPreferences(1).edit();
editor2.putString("text2", editBox2.getText().toString());
editor2.putInt("selection-start2", editBox2.getSelectionStart());
editor2.putInt("selection-end2", editBox2.getSelectionEnd());
editor2.commit();
}
private EditText editBox;
private EditText editBox2;
}
您在实现第二个
EditText
时遇到了什么具体问题?如何创建EditText
对象或实际保存第二个EditText
的状态?问题缺乏详细信息。写下你的目标。是的,保存第二个编辑文本的状态。我无法编写代码来保存第二个编辑文本的状态。你在这里看到的代码只保存一个编辑文本,而不是第二个…@Andy:你的问题毫无意义。代码仅显示一个EditText-将第二个EditText添加到布局中(如editText2
),并使用editBox1
处理第一个,使用editBox2
处理第二个。