一、效果图
title_dialog.png
二、思路
首先它是一个弹框，只是弹框的布局做些处理，布局占满屏幕，只有需要白色的布局的背景设为白色。其他没设置背景颜色，自然用dialog的style的windowBackground
三、案例关键代码
dialog的xml
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">
android:id="@+id/cl_dialog_content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="50dp"
android:background="@color/m_white"
app:layout_constraintTop_toTopOf="parent">
android:id="@+id/iv_select_active"
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:scaleType="centerCrop"
android:src="@mipmap/icon_sel_l"
android:visibility="invisible"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toTopOf="parent" />
android:id="@+id/tv_select_active"
style="@style/tv_w_w_s16_c_33_bold"
android:layout_width="0dp"
android:layout_height="0dp"
android:gravity="center_vertical"
android:paddingLeft="16dp"
android:text="@string/active"
app:layout_constraintBottom_toTopOf="@id/view_line"
app:layout_constraintLeft_toRightOf="@id/iv_select_active"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
android:id="@+id/view_line"
android:layout_width="0dp"
android:layout_height="1px"
android:layout_marginTop="16dp"
android:background="@color/c_f2efef"
app:layout_constraintLeft_toLeftOf="@id/iv_select_active"
app:layout_constraintTop_toBottomOf="@id/iv_select_active" />
android:id="@+id/iv_select_task"
android:layout_width="24dp"
android:layout_height="24dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:scaleType="centerCrop"
android:src="@mipmap/icon_sel_l"
android:visibility="invisible"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintTop_toBottomOf="@id/view_line" />
android:id="@+id/tv_select_task"
style="@style/tv_w_w_s16_c_33_bold"
android:layout_width="0dp"
android:layout_height="0dp"
android:gravity="center_vertical"
android:paddingLeft="16dp"
android:text="@string/task"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toRightOf="@id/iv_select_task"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@id/view_line" />
android:id="@+id/view_empty"
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="@id/cl_dialog_content"
app:layout_constraintBottom_toBottomOf="parent"
/>
java代码：
fun showSelectActiveOrTask(context:Context,currentSelect:String,listener: DialogClickBackListener?){
var dialog = getCancelDialog(context)
val window = dialog.window
window.setGravity(Gravity.TOP)
window.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
window.setContentView(R.layout.dialog_active_task_select)
val ivSelectActive = window.findViewById(R.id.iv_select_active)
val tvSelectActive = window.findViewById(R.id.tv_select_active)
val ivSelectTask = window.findViewById(R.id.iv_select_task)
val tvSelectTask = window.findViewById(R.id.tv_select_task)
val view_empty = window.findViewById(R.id.view_empty)
if (currentSelect == "活动"){
ivSelectActive.visibility = View.VISIBLE
} else {
ivSelectTask.visibility = View.VISIBLE
}
view_empty.setOnClickListener {
listener?.onClickBack(currentSelect)
dialog.dismiss()
}
//活动
ivSelectActive.setOnClickListener {
listener?.onClickBack("活动")
dialog.dismiss()
}
tvSelectActive.setOnClickListener {
listener?.onClickBack("活动")
dialog.dismiss()
}
//任务
ivSelectTask.setOnClickListener {
listener?.onClickBack("任务")
dialog.dismiss()
}
tvSelectTask.setOnClickListener {
listener?.onClickBack("任务")
dialog.dismiss()
}
}
其中：
private fun getCancelDialog(context:Context): Dialog {
return AlertDialog.Builder(context, R.style.mydialog).setCancelable(true).show()
}
@null
true
false
true
@android:color/transparent
true
0.6
四、总结
关键是布局，dialog的style
