wie man auto texview scroll wie Google Übersetzer hinzufügen

Question

wie man HorizontalScrollView hinzufügen: Auto-Bildlauf, um zu beenden, wenn neue Ansichten in textview wie dieses Bild hinzugefügt werden möchte ich diese Art von textview es scroll erstellen, wenn ich Text eingeben PLZ jemand helfen mir ?

.

mein Layout

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/activity_main" 
    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" 
    tools:context="com.textviewdemo.MainActivity"> 


    <EditText 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:inputType="textPersonName" 
     android:text="Name" 
     android:ems="10" 
     android:layout_alignParentTop="true" 
     android:id="@+id/editText" 
     android:layout_alignParentRight="true" 
     android:layout_alignParentEnd="true" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentStart="true" /> 


    <TextView 
     android:text="TextView" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_below="@+id/editText" 
     android:gravity="right|center_vertical" 
     android:layout_gravity="right|center_vertical" 
     android:scrollHorizontally="true" 
     android:textSize="30dp" 
     android:layout_marginTop="8dp" 
     android:id="@+id/textView" /> 

</RelativeLayout> 

Meine Hauptaktivität

public class MainActivity extends AppCompatActivity { 

    EditText editText; 
    TextView textView; 
    HorizontalScrollView horizontalScrollView; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     editText = (EditText) findViewById(R.id.editText); 
     textView = (TextView) findViewById(R.id.textView); 
     editText.addTextChangedListener(new TextWatcher() { 
      @Override 
      public void beforeTextChanged(CharSequence s, int start, int count, int after) { 
      } 

      @Override 
      public void onTextChanged(CharSequence s, int start, int before, int count) { 
       textView.setText(s); 
      } 

      @Override 
      public void afterTextChanged(Editable s) { 
      } 
     }); 

    } 
} 

Answer 1

Wrap Ihre TextView mit einem HorizontalScrollView wie unten und entfernen android:scrollHorizontally="true"

<HorizontalScrollView 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:layout_below="@+id/editText" 
    android:id="@+id/horizontalScrollView" > 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:textAppearance="?android:attr/textAppearanceLarge" 
     android:textSize="30dp" 
     android:layout_marginTop="8dp" 
     android:id="@+id/textView" /> 

</HorizontalScrollView> 

Ändern Ihre onCreate() wie folgt:

EditText editText; 
TextView textView; 
HorizontalScrollView horizontalScrollView; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     editText =(EditText)findViewById(R.id.editText); 
     textView =(TextView)findViewById(R.id.textView); 
     horizontalScrollView =(HorizontalScrollView)findViewById(R.id.horizontalScrollView); 

     editText.addTextChangedListener(new TextWatcher() { 
      @Override 
      public void beforeTextChanged(CharSequence s, int start, int count, int after) { 
      } 

      @Override 
      public void onTextChanged(CharSequence s, int start, int before, int count) { 
       textView.setText(s); 
       horizontalScrollView.post(new Runnable() { 
        public void run() { 
         horizontalScrollView.fullScroll(HorizontalScrollView.FOCUS_RIGHT); 
        } 
       }); 
      } 

      @Override 
      public void afterTextChanged(Editable s) { 
      } 
     });    

    }