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  •  2
  • Twing90  · 技术社区  · 6 年前

    我想实现一个方法,它允许我实现一个listview,它有两个不同的string数组和strings.xml。 我的代码有效,但我的手机只能显示前10项。我的问题在哪里?如果我尝试在虚拟设备上运行代码,它就会正常工作。

    这是我的代码,只有一个文本视图。(这个只显示前10项)

    Button btt_backHome;
    ListView lV_titoli;
    EditText eT_search;
    private ArrayAdapter<CharSequence> adapter , adapter_testi;
    ImageView img_titoli;
    List<RowData> rowData;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_titoli);
    
        img_titoli = (ImageView) findViewById(R.id.img_titoli); // Create an icon
        Picasso.get().load(R.drawable.sfondo).resize(2048, 1356).centerInside().into(img_titoli);
    
        btt_backHome = (Button) findViewById(R.id.btt_backHome);
        lV_titoli = (ListView) findViewById(R.id.lV_titoli);
        eT_search = (EditText) findViewById(R.id.eT_search);
    
        //serve per nascondere la tastiera
        this.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_HIDDEN);
    
    
        adapter = ArrayAdapter.createFromResource(this, R.array.titoli, android.R.layout.simple_list_item_1);
        lV_titoli.setAdapter(adapter);
        adapter.getFilter().filter("");
    
        final Intent refresh = new Intent(this, activity_titoli.class);
        final Intent to_Home = new Intent (this , Activity_Main.class);
        final Intent to_Canzone_from_titoli = new Intent (this , activity_canzone.class);
    
        eT_search.addTextChangedListener(new TextWatcher() {
    
            @Override
            public void afterTextChanged(Editable arg0) {
                // TODO Auto-generated method stub
    
            }
    
            @Override
            public void beforeTextChanged(CharSequence arg0, int arg1,
                                          int arg2, int arg3) {
                // TODO Auto-generated method stub
            }
    
            @Override
            public void onTextChanged(CharSequence arg0, int arg1, int arg2,
                                      int arg3) {
                (activity_titoli.this).adapter.getFilter().filter(arg0);
            }
        });
    
        btt_backHome.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                startActivity(to_Home);
            }
        });
    
        lV_titoli.setOnItemClickListener(new AdapterView.OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
    
                Resources res = getResources();
                List<String> list = Arrays.asList(res.getStringArray(R.array.titoli));
    
                to_Canzone_from_titoli.putExtra("riga", list.indexOf(adapter.getItem(i)));
                startActivity(to_Canzone_from_titoli);
    
            }
        });
    }
    

    这是我的XML代码:

    <ImageView
            android:id="@+id/img_titoli"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:alpha="1"
            android:scaleType="fitXY"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    
        <Button
            android:id="@+id/btt_backHome"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="16dp"
            android:layout_marginTop="8dp"
            android:text="indietro"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    
        <android.support.constraint.Guideline
            android:id="@+id/guideline2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            app:layout_constraintGuide_begin="20dp" />
    
        <EditText
            android:id="@+id/eT_search"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="64dp"
            android:ems="10"
            android:hint="Ricerca..."
            android:inputType="textPersonName"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />
    
        <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="128dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent">
    
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical">
    
                <ListView
                    android:id="@+id/lV_titoli"
                    android:layout_width="match_parent"
                    android:layout_height="500dp"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />
            </LinearLayout>
        </ScrollView>
    
    2 回复  |  直到 6 年前
        1
  •  2
  •   Tomer Shemesh    6 年前
    <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="128dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent">
    
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:orientation="vertical">
    
                <ListView
                    android:id="@+id/lV_titoli"
                    android:layout_width="match_parent"
                    android:layout_height="500dp"
                    app:layout_constraintBottom_toBottomOf="parent"
                    app:layout_constraintEnd_toEndOf="parent"
                    app:layout_constraintLeft_toLeftOf="parent"
                    app:layout_constraintRight_toRightOf="parent"
                    app:layout_constraintStart_toStartOf="parent"
                    app:layout_constraintTop_toTopOf="parent" />
            </LinearLayout>
        </ScrollView>
    

    <ListView
                android:id="@+id/lV_titoli"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:layout_marginTop="128dp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintTop_toTopOf="parent">
    
    
            </ListView>
    
        2
  •  0
  •   khalid3e    6 年前

    <ScrollView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_marginTop="128dp"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintLeft_toLeftOf="parent"
            app:layout_constraintRight_toRightOf="parent"
            app:layout_constraintTop_toTopOf="parent">        
    </ScrollView>
    

     <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">
    
            <ListView
                android:id="@+id/lV_titoli"
                android:layout_width="match_parent"
                android:layout_height="500dp"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintLeft_toLeftOf="parent"
                app:layout_constraintRight_toRightOf="parent"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent" />
     </LinearLayout>
    

    ListView inside ScrollView is not scrolling on Android