Java 保存来自两个站点的信息使用SharedReferences从按钮单击编辑文本
我正在尝试使用SharedReferences从一个活动的2个edittext获取另一个活动的2个文本视图。 虽然我已经成功地使用了这个方法,但它只是一个edittext对一个textview。 这次我不知道出了什么问题,因为我无法访问我定义的字符串,只能获取我输入的默认值。 希望你们能帮助我 提前谢谢 第一项活动:Java 保存来自两个站点的信息使用SharedReferences从按钮单击编辑文本,java,android,Java,Android,我正在尝试使用SharedReferences从一个活动的2个edittext获取另一个活动的2个文本视图。 虽然我已经成功地使用了这个方法,但它只是一个edittext对一个textview。 这次我不知道出了什么问题,因为我无法访问我定义的字符串,只能获取我输入的默认值。 希望你们能帮助我 提前谢谢 第一项活动: eActname = (EditText) findViewById(R.id.eACTName); eActbud = (EditTe
eActname = (EditText) findViewById(R.id.eACTName);
eActbud = (EditText) findViewById(R.id.eACTBud);
nameData = getSharedPreferences(namefilename, 0);
budData = getSharedPreferences(budfilename, 0);
bCreate = (Button) findViewById(R.id.bCreateActivity);
bCreate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent o = new Intent(ActivityCreate.this, ActView.class);
String[] actstrings = new String[] {
eActname.getText().toString(),
eActbud.getText().toString() };
o.putExtra("string", actstrings);
switch (v.getId()) {
case R.id.bCreateActivity:
bCreateClick();
break;
}
}
private void bCreateClick() {
// TODO Auto-generated method stub
String namestringData = eActname.getText().toString();
SharedPreferences.Editor editor = nameData.edit();
editor.putString("namesharedString", namestringData);
editor.commit();
String budstringData = eActbud.getText().toString();
SharedPreferences.Editor budeditor = budData.edit();
budeditor.putString("budsharedString", budstringData);
budeditor.commit();
tvActName = (TextView) findViewById(R.id.tvActName);
tvActBud = (TextView) findViewById(R.id.tvActBud);
Intent o = getIntent();
o.getStringArrayExtra("strings");
tvActName.setText(o.getStringExtra("text"));
tvActBud.setText(o.getStringExtra("text"));
nameData = getSharedPreferences(namefilename, 0);
budData = getSharedPreferences(budfilename, 0);
String [] actdataReturned = {nameData.getString("namesharedString", "Error"), budData.getString("budsharedString", "Error")} ;
tvActName.setText(actdataReturned[0]);
tvActBud.setText(actdataReturned[1]);
现在是第二个活动的代码:
eActname = (EditText) findViewById(R.id.eACTName);
eActbud = (EditText) findViewById(R.id.eACTBud);
nameData = getSharedPreferences(namefilename, 0);
budData = getSharedPreferences(budfilename, 0);
bCreate = (Button) findViewById(R.id.bCreateActivity);
bCreate.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent o = new Intent(ActivityCreate.this, ActView.class);
String[] actstrings = new String[] {
eActname.getText().toString(),
eActbud.getText().toString() };
o.putExtra("string", actstrings);
switch (v.getId()) {
case R.id.bCreateActivity:
bCreateClick();
break;
}
}
private void bCreateClick() {
// TODO Auto-generated method stub
String namestringData = eActname.getText().toString();
SharedPreferences.Editor editor = nameData.edit();
editor.putString("namesharedString", namestringData);
editor.commit();
String budstringData = eActbud.getText().toString();
SharedPreferences.Editor budeditor = budData.edit();
budeditor.putString("budsharedString", budstringData);
budeditor.commit();
tvActName = (TextView) findViewById(R.id.tvActName);
tvActBud = (TextView) findViewById(R.id.tvActBud);
Intent o = getIntent();
o.getStringArrayExtra("strings");
tvActName.setText(o.getStringExtra("text"));
tvActBud.setText(o.getStringExtra("text"));
nameData = getSharedPreferences(namefilename, 0);
budData = getSharedPreferences(budfilename, 0);
String [] actdataReturned = {nameData.getString("namesharedString", "Error"), budData.getString("budsharedString", "Error")} ;
tvActName.setText(actdataReturned[0]);
tvActBud.setText(actdataReturned[1]);
当您将数据写入您将其命名为“字符串”的意图时,当您读取将其命名为“字符串”的数据时。这并不能解决问题,我一直获得默认值,因为我认为出于某种原因,它无法访问字符串