Android 實現抖音頭像底部彈框效果的例項程式碼
阿新 • • 發佈:2020-04-22
佈局檔案
activity_test.xml
<?xml version="1.0" encoding="utf-8"?> <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto"> <LinearLayout android:id="@+id/linearLayout" android:orientation="vertical" app:layout_constraintStart_toStartOf="parent" app:layout_constraintBottom_toBottomOf="parent" android:background="@color/colorAccent" android:layout_width="match_parent" android:layout_height="300dp"> </LinearLayout> <View android:layout_width="match_parent" android:layout_height="100dp" app:layout_constraintTop_toTopOf="@+id/linearLayout" app:layout_constraintBottom_toTopOf="@+id/linearLayout" app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent" android:alpha="0" android:background="@android:color/white" /> <ImageView android:id="@+id/image" android:src="@mipmap/ic_launcher" app:layout_constraintTop_toTopOf="@+id/linearLayout" app:layout_constraintBottom_toTopOf="@+id/linearLayout" app:layout_constraintStart_toStartOf="parent" app:layout_constraintEnd_toEndOf="parent" android:layout_marginTop="100dp" android:layout_width="100dp" android:layout_height="100dp"/> </androidx.constraintlayout.widget.ConstraintLayout>
MainActivity.java
點選事件
View contentView = LayoutInflater.from(MainActivity.this).inflate(R.layout.activity_test,null); PopupWindow popWnd = new PopupWindow(MainActivity.this); popWnd.setContentView(contentView); popWnd.setWidth(ViewGroup.LayoutParams.MATCH_PARENT); popWnd.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT); popWnd.setBackgroundDrawable(new ColorDrawable(0x00000000)); popWnd.setOutsideTouchable(false); popWnd.setFocusable(true); //相對於父控制元件的底部顯示 無任何偏移 popWnd.showAtLocation(v,Gravity.BOTTOM,0);
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