莱姆在这里拍我的代码...
public class Index extends AppCompatActivity implements GoogleMap.OnMyLocationButtonClickListener, GoogleMap.OnMyLocationClickListener, OnMapReadyCallback, ActivityCompat.OnRequestPermissionsResultCallback {
public static String[] account;
private static final int LOCATION_PERMISSION_REQUEST_CODE = 1;
private boolean mPermissionDenied = false;
private GoogleMap mMap;
String[][] mobileArray = {
new String[] {"150 Goyeau St, Windsor, ON N9A 6J5","Product 1","N/A","3:30pm"},
new String[] {"2000 Talbot Road West, Windsor, ON N9A 6S4","Product 2","N/A","4:00pm"},
new String[] {"350 City Hall Square W, Windsor, ON N9A 6S1","Product 3","N/A","4:30pm"}
};
@Override
public void onWindowFocusChanged(boolean hasFocus) {
super.onWindowFocusChanged(hasFocus);
if (hasFocus) {
hideSystemUI();
}
}
private void hideSystemUI() {
View decorView = getWindow().getDecorView();
decorView.setSystemUiVisibility(
View.SYSTEM_UI_FLAG_IMMERSIVE
| View.SYSTEM_UI_FLAG_LAYOUT_STABLE
| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
| View.SYSTEM_UI_FLAG_FULLSCREEN);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView tVDriver = (TextView)findViewById(R.id.tVDriver);
tVDriver.setText(account[0]);
final TextView tVSpecial = (TextView)findViewById(R.id.tVSpecial);
final TextView tVProduct = (TextView)findViewById(R.id.tVProduct);
ArrayAdapter adapter = new ArrayAdapter<String>(this, R.layout.listview, mobileArray[0]);
ListView listView = (ListView) findViewById(R.id.lVDelivery);
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<?>adapter, View v, int position, long id){
tVSpecial.setText(mobileArray[position][2]);
tVProduct.setText(mobileArray[position][1]);
}
});
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap map) {
mMap = map;
mMap.setOnMyLocationButtonClickListener(this);
mMap.setOnMyLocationClickListener(this);
enableMyLocation();
}
private void enableMyLocation() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
PermissionUtils.requestPermission(this, LOCATION_PERMISSION_REQUEST_CODE,
Manifest.permission.ACCESS_FINE_LOCATION, true);
} else if (mMap != null) {
mMap.setMyLocationEnabled(true);
}
}
@Override
public boolean onMyLocationButtonClick() {
Toast.makeText(this, "MyLocation button clicked", Toast.LENGTH_SHORT).show();
return false;
}
@Override
public void onMyLocationClick(@NonNull Location location) {
Toast.makeText(this, "Current location:\n" + location, Toast.LENGTH_LONG).show();
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
if (requestCode != LOCATION_PERMISSION_REQUEST_CODE) {
return;
}
if (PermissionUtils.isPermissionGranted(permissions, grantResults,
Manifest.permission.ACCESS_FINE_LOCATION)) {
enableMyLocation();
} else {
mPermissionDenied = true;
}
}
@Override
protected void onResumeFragments() {
super.onResumeFragments();
if (mPermissionDenied) {
showMissingPermissionError();
mPermissionDenied = false;
}
}
private void showMissingPermissionError() {
PermissionUtils.PermissionDeniedDialog
.newInstance(true).show(getSupportFragmentManager(), "dialog");
}
}
我试图通过点击数组中的项目来在Google地图上绘制路径（并在加载活动时自动放大我的位置。）
问题是arrayadapter列出了第一个数组项。以编程方式，这是有道理的，但不是我想要的。我想为所有第一个数组显示第二个数组中的第一项。这意味着我只希望将地址显示在arrayadapter中。
我知道问题就在这里。
ArrayAdapter adapter = new ArrayAdapter<String>(this, R.layout.listview, mobileArray[0]);
但是我需要调用数组的哪一部分才能正确显示这些内容？
第二个问题是，加载此活动后如何放大我的位置？如何绘制路径？我尝试了两种不同的方法，其中一种出现了错误，使其无法正常工作，而另一种根本没有显示它。
这是我的布局
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:background="@drawable/in_the_weeds"
android:layout_height="match_parent">
<include
layout="@layout/map"
android:layout_width="match_parent"
android:layout_height="350dp"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:layout_marginStart="0dp"
android:layout_marginBottom="0dp" />
<TextView
android:id="@+id/tVNull"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="20dp"
android:layout_marginTop="25dp"
android:background="#80FFFFFF"
android:text="Driver"
android:textSize="24sp" />
<TextView
android:id="@+id/tVDriver"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginTop="25dp"
android:layout_marginEnd="20dp"
android:background="#80FFFFFF"
android:text="No Driver"
android:textSize="24sp"/>
<ListView
android:id="@+id/lVDelivery"
android:layout_width="200dp"
android:layout_height="200dp"
android:background="#80FFFFFF"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="20dp"
android:layout_marginTop="90dp" />
<TextView
android:id="@+id/tVProductNull"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="10dp"
android:layout_marginTop="90dp"
android:layout_marginEnd="20dp"
android:layout_toRightOf="@+id/lVDelivery"
android:background="#80FFFFFF"
android:text="Product"
android:textSize="16sp" />
<TextView
android:id="@+id/tVProduct"
android:layout_width="160dp"
android:layout_height="165dp"
android:layout_alignParentTop="true"
android:layout_alignParentEnd="true"
android:layout_marginStart="10dp"
android:layout_marginLeft="10dp"
android:layout_marginTop="125dp"
android:layout_marginEnd="20dp"
android:layout_toRightOf="@+id/lVDelivery"
android:background="#80FFFFFF"
android:textSize="24sp"
android:text="1g - Bubba Hash" />
<TextView
android:id="@+id/tVSpecial"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginStart="20dp"
android:layout_marginEnd="20dp"
android:layout_marginTop="300dp"
android:layout_toRightOf="@+id/tVProductNull"
android:background="#80FFFFFF"
android:textSize="24sp"
android:text="TextView" />
</RelativeLayout>
答案 0 :(得分：0)
您可以创建一个仅包含地址的新数组。但是更好的方法是创建一个自定义类（将其称为findNewRoomID），该类仅包含getter和setter。然后，将Product更改为ArrayAdapter<String>。自定义ArrayAdapter非常简单：
https://www.journaldev.com/10416/android-listview-with-custom-adapter-example-tutorial
编辑：这是我提到的错误解决方案。另一个要我花很长时间才能输入（但是您应该真正学习它，因为这是Android中的超级常见任务）：
ArrayAdapter<Product>}