Question

我试图在用户输入另一个结果的字符串后获取文本视图以进行更新。当使用下面的方法时，我得到的是编辑文本的代码地址。类似＆＃34; android.widget.Edittext（b142f388等等。＆＃34;无论用户在其他活动中输入什么内容。我在这里缺少什么？

从用户收集的字符串：

private void enterClicked() {

    Log.i(TAG,"Entered enterClicked()");

    //Save user provided input from the EditText field
    String result = mEditText.toString();

    //Create a new intent and save the input from the EditText field as an extra
    Intent i = new Intent(ExplicitlyLoadedActivity.this, ActivityLoaderActivity.class);
    i.putExtra("RESULT_STRING", result);

    //Set Activity's result with result code RESULT_OK
    setResult(RESULT_OK, i);

    //Finish the Activity
    finish();

}

活动结果：

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    Log.i(TAG, "Entered onActivityResult()");

    // RESULT_OK result code and a recognized request code
    // If so, update the Textview showing the user-entered text.

    if ( resultCode == RESULT_OK){
        if(requestCode == GET_TEXT_REQUEST_CODE){           
        String userData = data.getStringExtra("RESULT_STRING");
        mUserTextView.setText(userData);
    }    
}

}

Answer 1

String result = mEditText.getText().toString();

首先应用此项并检查结果

Answer 2

您需要使用getText()方法从editText获取文本：

尝试使用此代码：String result = mEditText.getText().toString();

private void enterClicked() {

Log.i(TAG,"Entered enterClicked()");

//Save user provided input from the EditText field
String result = mEditText.getText().toString();

//Create a new intent and save the input from the EditText field as an extra
Intent i = new Intent(ExplicitlyLoadedActivity.this, ActivityLoaderActivity.class);
i.putExtra("RESULT_STRING", result);

//Set Activity's result with result code RESULT_OK
setResult(RESULT_OK, i);

//Finish the Activity
finish();

}

相反：

private void enterClicked() {

    Log.i(TAG,"Entered enterClicked()");

    //Save user provided input from the EditText field
    String result = mEditText.toString();

    //Create a new intent and save the input from the EditText field as an extra
    Intent i = new Intent(ExplicitlyLoadedActivity.this, ActivityLoaderActivity.class);
    i.putExtra("RESULT_STRING", result);

    //Set Activity's result with result code RESULT_OK
    setResult(RESULT_OK, i);

    //Finish the Activity
    finish();

}

使用intent extras从另一个活动设置textview

2 个答案: