5
Tôi có thể biết tại sao bộ điều hợp danh sách tùy chỉnh của tôi trông như thế này?Bộ điều hợp ListView tùy chỉnh Android
Ảnh:
Codes:
MainActivity.java
public class MainActivity extends AppCompatActivity {
CurrencyRatesDetails crd = new CurrencyRatesDetails();
TextView inputCurrTV, convertedAmtTV;
ListView currencyLV;
EditText inputAmtET;
ArrayAdapter<String> adapter;
String[] currNameArr = crd.getNames();
String[] currCodeArr = crd.getCodes();
String[] currRateArr = crd.getRates();
Context context;
int index = 0;
//String[] rateCurrArr = {"AUD", "BGN", "BRL", "CAD", "CHF", "CNY"};
//double[] rateArr = {0.944, 1.2824, 2.2842, 0.96158, 0.70946, 4.8624}
Menu myMenu = null;
double rate, amtInput, finalConversion;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = this;
inputAmtET = (EditText) findViewById(R.id.inputAmtET);
convertedAmtTV = (TextView) findViewById(R.id.convertedAmtTV);
inputCurrTV = (TextView) findViewById(R.id.inputCurrTV);
currencyLV = (ListView) findViewById(R.id.currencyLV);
//Resources myRes = this.getResources();
//currArr = myRes.getStringArray(R.array.currencyList);
//adapter = ArrayAdapter.createFromResource(this, R.array.currencyList, android.R.layout.simple_selectable_list_item);
//adapter = new ArrayAdapter<String>(this, android.R.layout.simple_selectable_list_item, currNameArr);
//currencyLV.setAdapter(adapter);
currencyLV.setAdapter(new CustomAdapterLV(this, currNameArr, currCodeArr, currRateArr));
currencyLV.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
inputCurrTV.setText(currCodeArr[i]);
index = i;
//Getting rate based on selected currency code
//rate = rateArr[i];
}
});
}
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
this.myMenu = menu;
addMenuItems(menu);
getMenuInflater().inflate(R.menu.mainmenu, menu);
return true;
}
private void addMenuItems(Menu menu) {
int index = 200;
menu.add(index, index, index, "Settings");
menu.add(index, index + 1, index + 1, "Add Custom Rate");
menu.add(index, index + 2, index + 2, "Load Default Rates");
}
public boolean onOptionsItemSelected(MenuItem item) {
//getOrder() to get Menu Item at this specific orderId
if (item.getOrder() == 123) {
amtInput = Double.parseDouble(inputAmtET.getText().toString());
//finalConversion = amtInput/rate;
finalConversion = crd.conversion(amtInput, index);
//Formatting converted value to 2d.p
String finalValue = String.format("%.2f", finalConversion);
convertedAmtTV.setText(finalValue);
} else if (item.getItemId() == 201) {
Intent myIntent = new Intent(MainActivity.this, CustomXchangeRate.class);
startActivity(myIntent);
}
return true;
}
Tuỳ chỉnh LV Adaptor Layout.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/activity_custom_lvadapter"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:weightSum="1"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="0.0dp"
android:weightSum="1"
android:layout_weight="0.13"
android:orientation="horizontal" >
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="0.7"
android:orientation="vertical" >
<TextView
android:id="@+id/currencyNameTV"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="15dp"
android:text="text"/>
<TextView
android:id="@+id/currencyCodeTV"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="15px"
android:textSize="18dp"
android:text="text"/>
</LinearLayout>
<LinearLayout
android:layout_width="0.0dp"
android:layout_height="wrap_content"
android:layout_weight="0.3"
android:orientation="vertical"
android:layout_gravity="center_horizontal" >
<TextView
android:id="@+id/currencyRateTV"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:text="text"
android:textSize="30dp"
android:layout_marginLeft="15px"
android:layout_marginTop="15px"
android:gravity="center_horizontal" />
</LinearLayout>
</LinearLayout>
Tuỳ chỉnh LV Adaptor Class.java
public class CustomAdapterLV extends BaseAdapter{
String[] resultNames;
String[] resultCodes;
String[] resultRates;
Context context;
private static LayoutInflater inflater = null;
public CustomAdapterLV(MainActivity mainActivity, String[] names, String[]codes, String[] rates) {
resultNames = names;
resultCodes = codes;
resultRates = rates;
context = mainActivity;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public int getCount() {
return resultNames.length;
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
public class ViewHolder{
TextView tvName;
TextView tvCode;
TextView tvRate;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder vh = new ViewHolder();
View rowView;
rowView = inflater.inflate(R.layout.activity_custom_lvadapter, null);
vh.tvName = (TextView) rowView.findViewById(R.id.currencyNameTV);
vh.tvCode = (TextView) rowView.findViewById(R.id.currencyCodeTV);
vh.tvRate = (TextView) rowView.findViewById(R.id.currencyRateTV);
vh.tvName.setText(resultNames[position]);
vh.tvCode.setText(resultCodes[position]);
vh.tvRate.setText(resultRates[position]);
return rowView;
}
currNameArr, currCodeArr, currRateArr được mã hóa trong một lớp khác, không thể dường như để thêm nó vào.
Thanks guys ..
Nó trông giống như một vấn đề thiết kế, Liệu nó trông giống nhau trong cửa sổ xem trước? –
có đó là những gì tôi nhận được khi tôi chạy activity_main.xml của mình – domster