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W1ll
Asked: 2020-02-27 07:25:13 +0800 CST 2020-02-27 07:25:13 +0800 CST

Two color ListView text

  • 772

I am making an app that sends and receives data and this data is displayed in one ListViewbut I would like to change the color of the text so that the received texts (RX...) are colored and the texts (TX...) are of a different color, can this be done? What?.

Here is my code, I have tried to use Html.fromHtmlbut it doesn't work.

//* Aqui Transmite datos
send.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
    String message = editText.getText().toString();
    arrayList.add("TX: " + message);                        
    //arrayList.add( Html.fromHtml( redB +  "TX: " + message + colorEnd ) );
    if (mTcpClient != null) {
        mTcpClient.sendMessage(message);                    
    }
    mAdapter.notifyDataSetChanged();                        
    editText.setText("");
  }
});
.
.

//* Aqui Recibe datos
@Override
   protected void onProgressUpdate(String... values) {
   super.onProgressUpdate(values);
   arrayList.add("RX: " + values[0]);                
   mAdapter.notifyDataSetChanged();                  
}

enter image description here

android

2 Answers

  1. Best Answer

    If reviewing a question you previously asked:

    Two color text in TextView Android

    you must add the html containers where the color is defined, when you add the values ​​in the ArrayListfor the "stream" texts:

     // arrayList.add("TX: " + message); 
 //Color Rojo
  arrayList.add("<font color=#FF0000>TX: " + message + "</font>");

    and for "receive" texts

      //arrayList.add("RX: " + values[0]);       
  //Color azul
  arrayList.add("<font color=#0000FF>RX: " + values[0] + "</font>");

    When you add the texts in your TextViewuses Html.fromHtml():

     myTextView.setText(Html.fromHtml(valorArralist));
    • 3

  2. The solution to this is simple, you must create an adapter to which you enter itemns/components and not just text. To do this you must first create your layout (UI_component)

    <!-- Definis el texto y proximamente el color-->
<TextView
    android:id="@+id/list_content"
    android:textColor="#000000"
    android:gravity="center"
    android:text="ejemplo"
    android:layout_margin="4dip"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
/>

    Then it only remains to add the adapter to your ListView

    ArrayAdapter<String> adapter=new ArrayAdapter<String>(
            this, android.R.layout.itemListView, listItems){

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View view =super.getView(position, convertView, parent);

            TextView textView=(TextView) view.findViewById(android.R.id.text1);

            /*ELEJIS EL COLOR APLICANDO LA LOGICA QUE NECESITES*/
            textView.setTextColor(Color.BLUE);

            return view;
        }
    };

    /*SETEAS EL ADAPTER*/
    setListAdapter(adapter);
    • 1