我试图根据TextView中的字符串更改ImageView中显示的图像(对于嵌套的if-else语句,请原谅)。在我运行的测试中,即使st1的值是“HKD”,从嵌套的if-else传出的flagName仍然是“@ drawable / foreign_exchange”。
我似乎无法找到问题。任何帮助都感激不尽。谢谢。
EditText etCurrency = findViewById(R.id.editTextCurrency);
String st1 = etCurrency.getText().toString();
if (st1=="HKD"){
flagName = "@drawable/flag_hong_kong";
}else if(st1=="IDR"){
flagName = "@drawable/flag_indonesia";
}else if(st1=="JPY"){
flagName = "@drawable/flag_japan";
}else if(st1=="KRW"){
flagName = "@drawable/flag_south_korea";
}else if(st1=="MYR"){
flagName = "@drawable/flag_malaysia";
}else if(st1=="NZD"){
flagName = "@drawable/flag_new_zealand";
}else if(st1=="PHP"){
flagName = "@drawable/flag_philippines";
}else if(st1=="THB"){
flagName = "@drawable/flag_thailand";
}else if(st1=="TWD"){
flagName = "@drawable/flag_taiwan";
}else flagName = "@drawable/foreign_exchange";
int imageResource = getResources().getIdentifier(flagName,null,this.getPackageName());
imageView.setImageResource(imageResource);
使用.equals而不是==
if (st1.equals("HKD"))