我找不到位置来显示我的项目的确切值。
data.json
{
"interactions":
[
{
"MDT1": "Un",
"MDT2": "One",
"CI": "",
"AD": "",
"PE": "",
"PC": "OnePc"
},
{
"MDT1": "Un",
"MDT2": "One2",
"CI": "",
"AD": "One2AD",
"PE": "",
"PC": ""
},
{
"MDT1": "Trois",
"MDT2": "Three",
"CI": "",
"AD": "",
"PE": "ThreePE",
"PC": ""
},
]
}
MainActivity.java
public class MainActivity extends AppCompatActivity {
JSONObject jsonobject;
JSONArray jsonarray;
private SearchableSpinner mySpinner1;
private SearchableSpinner mySpinner2;
private TextView txtMDT1;
private TextView txtMDT2;
private TextView txtT;
private SimpleListAdapter myAdapter1;
private SimpleListAdapter myAdapter2;
private final ArrayList<Interactions> world = new ArrayList<>();
private final ArrayList<String> mStrings = new ArrayList<>();
private final ArrayList<String> m1Strings = new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
new DownloadJSON().execute();
mySpinner1 = (SearchableSpinner) findViewById(R.id.mySpinner1);
myAdapter1 = new SimpleListAdapter(this, mStrings);
mySpinner1.setOnItemSelectedListener(mOnItemSelectedListener1);
mySpinner1.setAdapter(myAdapter1);
mySpinner2 = (SearchableSpinner) findViewById(R.id.mySpinner2);
myAdapter2 = new SimpleListAdapter(this, m1Strings);
mySpinner2.setOnItemSelectedListener(mOnItemSelectedListener2);
mySpinner2.setAdapter(myAdapter2);
txtMDT1 = (TextView) findViewById(R.id.MDT1);
txtMDT2 = (TextView) findViewById(R.id.MDT2);
txtT = (TextView) findViewById(R.id.T);
}
private class DownloadJSON extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... params) {
jsonobject = JSONfunctions
.getJSONfromURL("https://rabah.000webhostapp.com/data.txt");
try {
jsonarray = jsonobject.getJSONArray("interactions");
for (int j = 0; j < jsonarray.length(); j++ ) {
jsonobject = jsonarray.getJSONObject(j);
Interactions worldpop = new Interactions();
worldpop.setMDT1(jsonobject.getString("MDT1"));
worldpop.setMDT2(jsonobject.getString("MDT2"));
worldpop.setPE(jsonobject.getString("PE"));
worldpop.setCI(jsonobject.getString("CI"));
worldpop.setAD(jsonobject.getString("AD"));
worldpop.setPC(jsonobject.getString("PC"));
world.add(worldpop);
mStrings.add(jsonobject.getString("MDT1"));
m1Strings.add(jsonobject.getString("MDT2"));
}
} catch (Exception e) {
Log.e("Error", e.getMessage());
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Void args) {
}
}
private OnItemSelectedListener mOnItemSelectedListener1 = new OnItemSelectedListener() {
@Override
public void onItemSelected(View view, int position, long id) {
txtMDT1.setText(String.format("MDT1 : %s", myAdapter1.getItem(position)));
txtMDT2.setText("");
txtT.setText("");
String mdt2 = world.get(position).getMDT2();
for (int j = 0; j < mStrings.size(); j++ ) {
m1Strings.clear();
m1Strings.add(mdt2);
myAdapter2.notifyDataSetChanged();
}
Toast.makeText(MainActivity.this, "Item on position " + position + " : "
+ myAdapter1.getItem(position) + " Selected", Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected() {
Toast.makeText(MainActivity.this, "Nothing Selected", Toast.LENGTH_SHORT).show();
}
};
private OnItemSelectedListener mOnItemSelectedListener2 = new OnItemSelectedListener() {
@Override
public void onItemSelected(View view, int position, long id) {
txtMDT2.setText(String.format("MDT2 : %s", myAdapter2.getItem(position)));
String PC = world.get(position).getPC();
String AD = world.get(position).getAD();
String PE = world.get(position).getPE();
for (int j = 0; j < m1Strings.size(); j++ ) {
if (!Objects.equals(PC, "")) {
txtT.setText(String.format("PC : %s", PC));
} else if (!Objects.equals(AD, "")) {
txtT.setText(String.format("AD : %s", AD));
} else if (!Objects.equals(PE, "")) {
txtT.setText(String.format("PE : %s", PE));
}
Toast.makeText(MainActivity.this, "Item on position " + position + " : "
+ myAdapter2.getItem(position) + " Selected", Toast.LENGTH_SHORT).show();
}
}
@Override
public void onNothingSelected() {
Toast.makeText(MainActivity.this, "Nothing Selected", Toast.LENGTH_SHORT).show();
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_reset) {
mySpinner1.setSelectedItem("");
mySpinner2.setSelectedItem("");
return true;
}
return super.onOptionsItemSelected(item);
}
}
content_main.xml
<gr.escsoft.michaelprimez.searchablespinner.SearchableSpinner
android:id="@+id/mySpinner1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:layout_marginStart="24dp"
android:layout_marginEnd="24dp"
android:gravity="center_horizontal"
app:StartSearchTintColor="@android:color/white"
app:DoneSearchTintColor="@android:color/holo_purple"
app:RevealViewBackgroundColor="@android:color/holo_purple"
app:SearchViewBackgroundColor="@android:color/secondary_text_dark"
app:ShowBorders="false"
app:RevealEmptyText="Touch to select"
app:SpinnerExpandHeight="300dp"/>
<gr.escsoft.michaelprimez.searchablespinner.SearchableSpinner
android:id="@+id/mySpinner2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:layout_marginStart="24dp"
android:layout_marginEnd="24dp"
android:gravity="center_horizontal"
app:StartSearchTintColor="@android:color/white"
app:DoneSearchTintColor="@android:color/holo_purple"
app:RevealViewBackgroundColor="@android:color/holo_purple"
app:SearchViewBackgroundColor="@android:color/secondary_text_dark"
app:ShowBorders="false"
app:RevealEmptyText="Touch to select"
app:SpinnerExpandHeight="300dp"
android:layout_below="@+id/mySpinner1"
/>
<TextView
android:id="@+id/MDT1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:layout_marginStart="24dp"
android:layout_marginTop="10dp"
android:layout_below="@+id/mySpinner2" />
<TextView
android:id="@+id/MDT2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:layout_marginStart="24dp"
android:layout_marginTop="10dp"
android:layout_below="@+id/MDT1" />
<TextView
android:id="@+id/T"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="24dp"
android:layout_marginRight="24dp"
android:layout_marginStart="24dp"
android:layout_marginTop="10dp"
android:layout_below="@+id/MDT2" />
</RelativeLayout>
结果mOnItemSelectedListener2：
必须如此：
而不是：
