java 如何在 Android Studio 中检查字符串是否为空或 null
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how to check if a string is empty or null in Android Studio
提问by John Champion
In my project I have an edit textfield and its name is editTextalso I have assign mTextEmri = (EditText) findViewById(R.id.editText);I want to get its value and I have done it with the following statment String emridhene = mTextEmri.getText().toString();
在我的项目中，我有一个edit text字段，它的名称editText也是我指定的mTextEmri = (EditText) findViewById(R.id.editText);我想获取它的值，我已经使用以下语句完成了String emridhene = mTextEmri.getText().toString();
Now I want to check it if it is nullor emptyI have tried this code but it is not working
现在我想检查它是否是null或者empty我已经尝试过这段代码但它不起作用
if (emridhene.toString() == null || emridhene.toString() == "") {
mTextViewKonfirm.setText("Ju lutem shkruani nje Emer");
}
else{
mTextViewKonfirm.setText(emridhene);
}
How can I make it to work. Thanks.
我怎样才能让它工作。谢谢。
回答by Deepak Goyal
Just Use
就用
if(TextUtils.isEmpty(/* your String*/)){
// String is empty or null
}else {
// string has value
}
