如何在通过 ArrayAdapter 放置 ArrayList 的 ListView 上设置字体

Question

我想在下面的代码中将字体设置为列表视图。附上所有相关文件。

SearchClient.java

Toolbar mToolbar;
EditText search;
ListView listView;
ArrayAdapter<String> adapter;
ArrayList<HashMap<String, String>> productList;
Typeface typeface;
DatabaseHelper databaseHelper;
//Clients List
List<String> client_name = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_search_client);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);

    mToolbar = (Toolbar) findViewById(R.id.toolbar_search_client);
    setSupportActionBar(mToolbar);

    typeface = Typeface.createFromAsset(getAssets(),"fonts/ProductSans-Regular.ttf");
    init();

    search.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            search.setBackgroundTintList(ColorStateList.valueOf(Color.parseColor("#ffffff")));
        }
    });

    databaseHelper = new DatabaseHelper(this);

    Cursor res = databaseHelper.TABLE_CLIENTS_view();
    while (res.moveToNext()) {
        client_name.add(res.getString(1));
    }

    adapter = new ArrayAdapter<String>(this, R.layout.search_list_item, R.id.search_client_name, client_name);
    listView.setAdapter(adapter);

    search.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
            // When user changed the Text
            SearchClient.this.adapter.getFilter().filter(cs);
        }

        @Override
        public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                                      int arg3) {
            // TODO Auto-generated method stub

        }

        @Override
        public void afterTextChanged(Editable arg0) {
            // TODO Auto-generated method stub
        }
    });

}

public void init(){
    search = (EditText) findViewById(R.id.search_client);
    search.setTypeface(typeface);
    listView = (ListView) findViewById(R.id.listView_search_client);
}

activity_search_client.xml

<?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:layout_width="match_parent"
    android:layout_height="match_parent"
    android:focusableInTouchMode="true"
    android:focusable="true"
    android:id="@+id/rel_lay_client_search"
    tools:context="com.example.monilandharia.invoice.SearchClient">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <LinearLayout
            android:id="@+id/container_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <include
                android:id="@+id/toolbar_search_client"
                layout="@layout/toolbar_search" />
        </LinearLayout>

        <ListView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="10dp"
            android:id="@+id/listView_search_client" />


    </LinearLayout>

</RelativeLayout>

search_list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView android:id="@+id/search_client_name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:padding="10dip"
        android:textSize="16dip"
        android:textStyle="bold"/>

</LinearLayout>

提前非常感谢您的帮助！！

Answer 1

您可以创建一个如下所示的自定义文本视图，并在自定义文本视图类中设置所需的字体，如下所示。

    public class CustomTextView extends TextView {

        public CustomTextView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        private void init(Context context, AttributeSet attrs) {
            Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/ProductSans-Regular.ttf");
            this.setTypeface(typeface);
        }
    }

并在您的 xml (search_list_item.xml) 文件中进行以下更改。

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <com.example.CustomTextView android:id="@+id/search_client_name"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:padding="10dip"
        android:textSize="16dip"
        android:textStyle="bold"/>

</LinearLayout>

现在字体将应用于文本视图。

Answer 2

1- 在main 目录中创建一个目录assets

2- 从互联网上下载所需的字体并将文件复制到资产中

3- 在你的适配器中

Typeface name_For_Typeface;

name_For_Typeface= Typeface.createFromAsset(getContext().getAssets(), "yourfont.ttf");

textview.setTypeface(name_For_Typeface);

Answer 3

哦，谢谢，但你犯了一个错误，但我改了。看看这个：

您的代码：

    /* Constructor */ public CustomTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    private void init(Context context, AttributeSet attrs) {
        Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/ProductSans-Regular.ttf");
        this.setTypeface(typeface);
    }

你忘了调用 init() 所以它没有做任何改变。你可以像init(context,attrs)一样在init中传递上下文和属性。你也可以像下面那样做，而不是我做了：

/* Constructor */ public CustomTextView(Context context, AttributeSet attrs) {
    super(context, attrs);
    Typeface typeface = Typeface.createFromAsset(context.getAssets(), "fonts/ProductSans-Regular.ttf");
    this.setTypeface(typeface);
}