Zi 字媒體

TextView text;//宣告 text = (TextView)findViewById(R.id.text);   text.setText("裡面放置文字");//設置文字 text.setTextColor(Color.RED);//設置文字顏色 text.setTextColor(Color.rgb(255,255,255));//設置文字顏色 text.setTextSize(10);//設置文字字體大小   範例 XML xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> <TextView android:id="@+id/text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="8dp" android:layout_marginStart="8dp" android:layout_marginTop="8dp" android:text="text1" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> <TextView android:id="@+id/text2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="8dp" android:layout_marginStart="8dp" android:layout_marginTop="8dp" android:text="text2" app:layout_constraintStart_toEndOf="@+id/text" app:layout_constraintTop_toTopOf="parent" /> android.support.constraint.ConstraintLayout> JAVA public class MainActivity extends AppCompatActivity { TextView text,text2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); text = (TextView)findViewById(R.id.text); text2 = (TextView)findViewById(R.id.text2); text.setText("987654321"); text2.setText("123456789"); text.setTextColor(Color.RED); text2.setTextColor(Color.rgb(255,0,0)); text.setTextSize(10); text2.setTextSize(30); } }