Zi 字媒體

一般來說我們使用到AlertDialog頂多是寫個文字或是改改標題 但如果想往AlertDialog裡面擺放其他的元件該怎麼辦呢? 比如說我想讓對話窗裡面顯示一個小星星之類的，如下圖 我們會使用到LayoutInflater，View來加載外部的布局(layout) 示範 XML 首先新增兩個XML檔案 activity_main.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"> <Button android:id="@+id/btn_Click" android:layout_width="wrap_content" android:layout_height="wrap_content" android:onClick="btn_Click" android:text="Dialog" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" /> android.support.constraint.ConstraintLayout> xll.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"> <ImageView android:id="@+id/ig" android:layout_width="131dp" android:layout_height="148dp" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" app:srcCompat="@android:drawable/btn_star_big_on" /> android.support.constraint.ConstraintLayout> JAVA public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } public void btn_Click(View v) { LayoutInflater layoutInflater = LayoutInflater.from(this); View imageEnterView = layoutInflater.inflate(R.layout.xll, null); ImageView xll_lv = (ImageView) imageEnterView.findViewById(R.id.ig); new AlertDialog.Builder(this) .setView(imageEnterView) .setTitle("視窗") .setPositiveButton("OK", null).show(); } } 相關文章: [Android] Android 程式設計教學