Android TextView文本控件介绍_Android

    <TextView
        android:id="@+id/tView1"
        android:layout_width="200dp"
        android:layout_height="wrap_content"
        android:text="修改"
        android:textColor="@color/white"
        android:textSize="90dp"
        android:textStyle="bold"
        android:gravity="center"
        android:background="@color/black"/>

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        TextView tv = findViewById(R.id.tView1);
        tv.setText("TextView1");
    }