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我希望使用程序代碼設置微調器項目,而不是在xml佈局中使用android:條目。 但我沒有這樣做。 我想根據條件設置微調項目,所以不能使用靜態的xml來設置它,所以善意地幫助我動態設置。 下面的代碼: 公共類轉換器擴展AppCompatActivity {如何以編程方式填充微調器選項(不使用xml)
EditText et2;
TextView tv;
Spinner spr2,spr3;
ArrayAdapter adap2,adap3;
String []spr_2;
String []spr_3;
Button btn2;
String s1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_converter);
et2=(EditText) findViewById(R.id.et2);
tv=(TextView) findViewById(R.id.tv);
spr2=(Spinner) findViewById(R.id.spr2);
spr3=(Spinner) findViewById(R.id.spr3);
btn2=(Button) findViewById(R.id.btn2);
Bundle b=getIntent().getExtras();
et2.setText(b.getString("Value1"));
s1=b.getString("SpinnerValue");
adap2=adap3=new ArrayAdapter(this,android.R.layout.simple_dropdown_item_1line);
if(s1 == "height") {
spr_2 = spr_3 = getResources().getStringArray(R.array.height);
adap2 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_2);
adap3 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_3);
spr2.setAdapter(adap2);
spr3.setAdapter(adap3);
}
if(s1 == "weight") {
spr_2 = spr_3 = getResources().getStringArray(R.array.weight);
adap2 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_2);
adap3 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_3);
spr2.setAdapter(adap2);
spr3.setAdapter(adap3);
}
if(s1 == "distance") {
spr_2 = spr_3 = getResources().getStringArray(R.array.distance);
adap2 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_2);
adap3 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_3);
spr2.setAdapter(adap2);
spr3.setAdapter(adap3);
}
if(s1 == "currency") {
spr_2 = spr_3 = getResources().getStringArray(R.array.height);
adap2 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_2);
adap3 = new ArrayAdapter(this, android.R.layout.simple_dropdown_item_1line, spr_3);
spr2.setAdapter(adap2);
spr3.setAdapter(adap3);
}
}
}
的可能的複製[安卓:填寫微調從Java代碼編程(https://stackoverflow.com/questions/11920754/android-fill-spinner-from-java-代碼編程) –
但我已經做了適配器,但沒有做出更改。我確實嘗試了上述問題的答案。 –