1
我試圖爲我的音樂播放器實現控件。Android視圖不可見
這裏是我的XML:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:clickable="true"
android:fitsSystemWindows="true"
app:behavior_hideable="true"
app:layout_behavior="android.support.design.widget.BottomSheetBehavior">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:baselineAligned="false"
android:orientation="vertical">
...
<LinearLayout
android:id="@+id/control_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:gravity="bottom"
android:orientation="horizontal"
android:weightSum="4">
<!-- This is volume control Button -->
<RelativeLayout
android:id="@+id/bottom_sheet_control_volume_container"
android:layout_width="wrap_content"
android:layout_height="56dp"
android:layout_weight="1"
android:gravity="center">
<ImageButton
android:id="@+id/bottom_sheet_control_volume"
android:layout_width="48dp"
android:layout_height="48dp"
android:background="@drawable/item_bg_transparent"
android:src="@drawable/ic_volume_up_black_24dp" />
</RelativeLayout>
<!-- Other Buttons -->
...
</LinearLayout>
<!-- Layout with volume control SeekBar -->
<io.codetail.widget.RevealFrameLayout
android:id="@+id/reveal_seek_bar_volume"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:focusable="true"
android:focusableInTouchMode="true"
android:visibility="visible">
<LinearLayout
android:id="@+id/container_seek_bar_volume"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/white"
android:focusable="true"
android:focusableInTouchMode="true"
android:gravity="center_vertical"
android:orientation="horizontal"
android:visibility="gone">
<ImageButton
android:id="@+id/container_seek_bar_volume_close"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginLeft="16dp"
android:layout_marginStart="16dp"
android:background="@drawable/item_bg_transparent"
android:src="@drawable/ic_close_black_24dp" />
<android.support.v7.widget.AppCompatSeekBar
android:id="@+id/seek_bar_volume"
android:layout_width="match_parent"
android:layout_height="30dp"
android:layout_margin="16dp"
android:max="100"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:paddingTop="0dp"
android:progress="100"
app:theme="@style/AppTheme.SeekBar.Accent" />
</LinearLayout>
</io.codetail.widget.RevealFrameLayout>
</RelativeLayout>
</LinearLayout>
</FrameLayout>
而且我的代碼:
LLcontainerSBvolume = (LinearLayout) findViewById(R.id.container_seek_bar_volume);
IBcontrolVolume = (ImageButton) findViewById(R.id.bottom_sheet_control_volume);
IBcontrolVolume.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
LLcontainerSBvolume.setVisibility(View.VISIBLE);
}
});
我也試圖要求重點ImageButton
和其他Views
:
IBcontrolVolume.requestFocus();
LLcontainerSBvolume.requestFocus();
LLcontainerSBvolume.requestLayout();
問題
的問題是下一:
當我開始我的Activity
,點擊歌曲,開放BottomSheet
和點擊量控制ImageButton
,Seekbar
不會成爲VISIBLE
。我應該點擊其他View
,然後卷ImageButton
也適用。
爲什麼你做相反,它適用於只是整個'container_seek_bar_volume'視圖不見了, 'seek_bar_volume' –
@ShreeKrishna,是的,因爲'SeekBar'附近還有一個'ImageButton'靠近' –
'你希望它們在第一次啓動時就不可見,並且可以實現可見。那麼這兩個變得可見或只有一個變得可見? –