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我正在使用Android Studio。我希望用戶輸入editText的值作爲全局變量存儲,以便我可以在不同的活動中使用它(我試圖製作一個籃子,並且用戶輸入的值是產品) 此處是我與EDITTEXT第一頁代碼調用,我想打一個全局變量)木:如何使輸入editText的值爲全局變量/字符串?
public class Letters extends AppCompatActivity {
int txtSize = 14;
EditText Wood;
Button bSize, bSize1, bSize2, bSize3, bBasket;
public int count = 5;
private LayoutInflater mInflater;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.content_letters);
Wood = (EditText) findViewById(R.id.Wood);
Button bSize = (Button) findViewById(R.id.bSize);
Button bSize1 = (Button) findViewById(R.id.bSize1);
Button bSize2 = (Button) findViewById(R.id.bSize2);
Button bSize3 = (Button) findViewById(R.id.bSize3);
Button bBasket = (Button) findViewById(R.id.bBasket);
final TextView price = (TextView) findViewById(R.id.price);
bSize.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Wood.setTextSize(40);
price.setText("£10");
}
});
bSize1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Wood.setTextSize(60);
price.setText("£20");
}
});
bSize2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Wood.setTextSize(100);
price.setText("£35");
}
});
bSize3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Wood.setTextSize(150);
price.setText("£50");
}
});
bBasket.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
EditText Wood = (EditText) findViewById(R.id.Wood);
String str = Wood.getText().toString();
if (str.length() == 0) {
Wood.requestFocus();
Wood.setError("FIELD CANNOT BE EMPTY");
} else if (str.length() >= 2) {
Wood.requestFocus();
Wood.setError("You can only type one letter!");
} else {
Intent intent2 = new Intent(Letters.this, Basket.class);
startActivity(intent2);
}
}
});
}
}
謝謝
謝謝你的回答。當我輸入intent2.putExtras(「MY_INFO」,str);它提出不能解決方法'putExtras(java.lang.String,java.lang.String) – 09Emi
編輯:putExtra()是正確的方法簽名,如果這解決了你的問題,請標記爲已回答。 – Talha
謝謝,你知道如何打印字符串嗎? – 09Emi