[英]Update Value For TextView using EditText
I am trying to sent the text in an EditText from one activity through an intent extra to another activity. 我试图将EditText中的文本从一个活动通过一个额外的意图发送到另一个活动。 The text will then be used to update a TextView in the second Activity. 然后,该文本将用于更新第二个Activity中的TextView。 The EditText activity was invoked using startActivityForResult(). EditText活动是使用startActivityForResult()调用的。 I have the following code. 我有以下代码。
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.explicitly_loaded_activity);
// Get a reference to the EditText field
mEditText = (EditText) findViewById(R.id.editText);
// Declare and setup "Enter" button
Button enterButton = (Button) findViewById(R.id.enter_button);
enterButton.setOnClickListener(new OnClickListener() {
// Call enterClicked() when pressed
@Override
public void onClick(View v) {
enterClicked();
}
});
}
// Sets result to send back to calling Activity and finishes
private void enterClicked() {
Log.i(TAG,"Entered enterClicked()");
// TODO - Save user provided input from the EditText field
mEditText = (EditText) findViewById(R.id.editText);
CharSequence userInput = mEditText.getText();
// TODO - Create a new intent and save the input from the EditText field as an extra
Intent returnIntent = new Intent(ExplicitlyLoadedActivity.this, ActivityLoaderActivity.class);
returnIntent.putExtra("returnInput", userInput);
// TODO - Set Activity's result with result code RESULT_OK
setResult(RESULT_OK);
// TODO - Finish the Activity
finish();
}
This is then sent back to the following code. 然后将其发送回以下代码。
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Log.i(TAG, "Entered onActivityResult()");
// TODO - Process the result only if this method received both a
// RESULT_OK result code and a recognized request code
// If so, update the Textview showing the user-entered text.
if(resultCode == RESULT_OK && requestCode == GET_TEXT_REQUEST_CODE) {
mUserTextView.setText(data.getCharSequenceExtra("returnInput"));
}
}
Where mUserTextView is the TextView I want to update. 其中mUserTextView是我要更新的TextView。 Thanks. 谢谢。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.