本文介紹了通過按鈕將輸入的文本保存在editText中的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！
問題描述
限時送ChatGPT賬號..
我想使用 sharedPreferences 保存 EditText 中輸入的 String 值.并在活動開始時顯示文本
i want to save a String's value that is entenred in EditText using sharedPreferences.
and show text when activity starts
public class enteredText extends Activity
{
private Button savenotebutton1;
private SharedPreferences savednotes;
private EditText editText1;
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.x1);
savenotebutton1 = (Button) findViewById(R.id.savenotebutton1);
editText1 = (EditText) findViewById(R.id.noteEditText1);
savednotes = getSharedPreferences("notes",MODE_PRIVATE);
savenotebutton1.setOnClickListener(saveButtonListener);
}
private void makeTag(String tag)
{
String or = savednotes.getString(tag, null);
SharedPreferences.Editor preferencesEditor = savednotes.edit();
preferencesEditor.putString(tag,null);
preferencesEditor.commit();
}
public OnClickListener saveButtonListener = new OnClickListener(){
@Override
public void onClick(View v) {
if(editText1.getText().length()>0){
makeTag(editText1.getText().toString());
((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(editText1.getWindowToken(),0);
}
}
};
}
推薦答案
你必須用下面兩行注釋來改變你的代碼:
You have to change your code with two new lines with comments below:
public class enteredText extends Activity{
private Button savenotebutton1;
private SharedPreferences savednotes;
private EditText editText1;
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.x1);
savenotebutton1 = (Button) findViewById(R.id.savenotebutton1);
editText1 = (EditText) findViewById(R.id.noteEditText1);
savednotes = getSharedPreferences("notes",MODE_PRIVATE);
editText1.setText(savednotes.getString("tag", "Default Value")); //add this line
savenotebutton1.setOnClickListener(saveButtonListener);
}
private void makeTag(String tag){
String or = savednotes.getString(tag, null);
SharedPreferences.Editor preferencesEditor = savednotes.edit();
preferencesEditor.putString("tag",tag); //change this line to this
preferencesEditor.commit();
}
public OnClickListener saveButtonListener = new OnClickListener(){
@Override
public void onClick(View v) {
if(editText1.getText().length()>0){
makeTag(editText1.getText().toString());
((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(editText1.getWindowToken(),0);
}
}
};
}
這篇關于通過按鈕將輸入的文本保存在editText中的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！
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