GridView.FATAL 예외 : main android.content.res.Resources $ NotFoundException : 문자열 리소스 ID # 0x0

Question

내가 쓴 GridView 요소를 클릭했을 때 표시됩니다. 하지만 처음에는 요소의 위치를 ​​원할 때 오류가 발생했습니다. 내가 올바르게 이해했다면, gridview는 textview를 보지 못했지만 나는 이유를 모른다.

오류 :

5312-5312/standandroid.ru.words E/AndroidRuntime﹕ FATAL EXCEPTION: main 
android.content.res.Resources$NotFoundException: String resource ID #0x0 
     at android.content.res.Resources.getText(Resources.java:240) 
     at android.content.res.MiuiResources.getText(MiuiResources.java:131) 
     at android.widget.Toast.makeText(Toast.java:273) 
     at standandroid.ru.words.MainActivity$1$1.onItemClick(MainActivity.java:70) 
     at android.widget.AdapterView.performItemClick(AdapterView.java:298) 
     at android.widget.AbsListView.performItemClick(AbsListView.java:1130) 
     at android.widget.AbsListView$PerformClick.run(AbsListView.java:2818) 
     at android.widget.AbsListView$1.run(AbsListView.java:3498) 
     at android.os.Handler.handleCallback(Handler.java:730) 
     at android.os.Handler.dispatchMessage(Handler.java:92) 
     at android.os.Looper.loop(Looper.java:137) 
     at android.app.ActivityThread.main(ActivityThread.java:5137) 
     at java.lang.reflect.Method.invokeNative(Native Method) 
     at java.lang.reflect.Method.invoke(Method.java:525) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:756) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:572) 
     at miui.dexspy.DexspyInstaller.main(DexspyInstaller.java:171) 
     at dalvik.system.NativeStart.main(Native Method) 

MainActivity.java :

public class MainActivity extends Activity { 
TextView txt, textTV; 
EditText etxt; 
Button btn; 
ArrayAdapter<String> adapter; 
GridView gridView; 
String name; 

char c; 
ArrayList arrayList=new ArrayList(); 

int i; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    txt = (TextView) findViewById(R.id.textView); 
    etxt = (EditText) findViewById(R.id.editText); 
    btn = (Button) findViewById(R.id.button); 
    textTV = (TextView) findViewById(R.id.tv); 

    btn.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 

      name = etxt.getText().toString(); 
      TreeSet list = new TreeSet(); 
      for (i = 0; i < name.length(); i++) { 
       c = name.charAt(i); 
       list.add(c); 

      } 
      arrayList = new ArrayList(list); 

      adapter = new ArrayAdapter<String>(MainActivity.this, R.layout.item, R.id.tv, arrayList); 
      gridView = (GridView) findViewById(R.id.gridmain); 
      gridView.setAdapter(adapter); 
      ViewGrid(); 
      gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
       @Override 
       public void onItemClick(AdapterView<?> parent, View view, int position, long id) { 

        Toast.makeText(MainActivity.this, position,Toast.LENGTH_LONG).show(); 
       } 
      }); 
     } 

    });} 
    private void ViewGrid(){ 
    gridView.setNumColumns(4); 
    gridView.setStretchMode(GridView.STRETCH_COLUMN_WIDTH); }} 

activity_main.xml :

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:paddingLeft="@dimen/activity_horizontal_margin" 
android:paddingRight="@dimen/activity_horizontal_margin" 
android:paddingTop="@dimen/activity_vertical_margin" 
android:paddingBottom="@dimen/activity_vertical_margin" 
tools:context=".MainActivity"> 



<TextView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:textAppearance="?android:attr/textAppearanceLarge" 
    android:id="@+id/textView" 
    android:layout_alignParentBottom="true" 
    android:layout_centerHorizontal="true" 
    android:layout_marginBottom="175dp" /> 

<EditText 

    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:id="@+id/editText" 
    android:singleLine="true" 
    android:layout_alignParentTop="true" 
    android:layout_alignParentRight="true" 
    android:layout_alignParentEnd="true" 
    android:layout_marginTop="48dp" /> 

<Button 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:text="New Button" 
    android:id="@+id/button" 
    android:layout_below="@+id/editText" 
    android:layout_centerHorizontal="true" 
    android:layout_marginTop="44dp" /> 
<GridView 
    android:id="@+id/gridmain" 
    android:layout_width="match_parent" 
    android:layout_height="wrap_content" 
    android:layout_marginTop="44dp" 
    android:layout_alignTop="@+id/textView" 
    android:layout_alignParentLeft="true" 
    android:layout_alignParentStart="true"></GridView> 

</RelativeLayout> 

item.xml :

<?xml version="1.0" encoding="utf-8"?> 

<LinearLayout 
xmlns:android="http://schemas.android.com/apk/res/android" 
android:orientation="vertical" 
android:layout_width="match_parent" 
android:layout_height="match_parent"> 

<TextView 
    android:id="@+id/tv" 
    android:textSize="40sp" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" /> 
</LinearLayout> 

http://i.stack.imgur.com/j5S93.png

Answer 1

오! 알겠습니다. 문제는 Toast은 position을 resourceID으로 생각하고 있습니다. 여기에 Toast 사양이 표시되면 resourceId 또는 CharSequence을 정의 할 수 있습니다. 따라서 위치를 String으로 전달하고 있는지 확인하십시오. 다음과 같음 :

Toast.makeText(MainActivity.this, String.valueOf(position),Toast.LENGTH_LONG).show();