我在布局xml中有以下代码。我想让fab在用户单击后消失,并在sendData()中指定的操作后再次出现
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout 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="org.toto.test.RecordAction">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="37dp"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#40f4b8"
app:popupTheme="@style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_record_action" />
<ImageView
android:id="@+id/imageView"
android:layout_marginTop="35dp"
android:layout_width="match_parent"
android:layout_height="567dp"
app:srcCompat="@drawable/sahasrakshi"
tools:layout_editor_absoluteY="0dp" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
app:backgroundTint="@color/colorPrimary"
app:srcCompat="@drawable/ic_send_white_18dp" />
</android.support.design.widget.CoordinatorLayout>
并尝试更改晶圆厂的可见性。它不起作用。调用的代码是
CoordinatorLayout.LayoutParams p = (CoordinatorLayout.LayoutParams) fab.getLayoutParams();
p.setAnchorId(View.NO_ID);
fab.setLayoutParams(p);
fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (checkValidation())
//fab.setBackgroundColor(Color.parseColor("#ffffff"));
//fab.hide();
fab.setVisibility(View.INVISIBLE);
sendData();
//fab.setBackgroundColor(Color.parseColor("#e7ffcc"));
//fab.show();
//fab.setEnabled(true);
fab.setVisibility(View.VISIBLE);
}
});
试图更改颜色,使用了show()和hide(),但无法这样做。有人可以指导我吗?
Adding sendData()
protected void sendData() {
amtInWords = convertNumberToWords(Amount);
if (ContextCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS)
!= PackageManager.PERMISSION_GRANTED) {
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.SEND_SMS)) {
} else {
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.SEND_SMS},
MY_PERMISSIONS_REQUEST_SEND_SMS);
}
} else {
sendSMS();
}
getDeviceName();
editInvisibleFocusHolder.setInputType(InputType.TYPE_NULL);
editInvisibleFocusHolder.requestFocus();
captureScreen();
sendEmail();
onFabVisible(true);
quit();
}
}
答案 0 :(得分:0)
使用自定义方法
public void onFabVisible(boolean visible) {
if (fab!= null) {
fab.setVisibility(visible ? View.VISIBLE : View.GONE);
fab.setAlpha(visible ? 1f : 0f);
fab.setScaleY(visible ? 1f : 0f);
fab.setScaleX(visible ? 1f : 0f);
}
}
如果sendData()是异步请求,则在回调中使用onFabVisible(true)
更新
您需要创建一个在完成所有这些方法之后将要调用的方法。将检查是否已发送所有内容。
示例:
boolean smsSent = false;
boolean emailSant = false;
private void chackAllSent() {
if (havePermission && smsSent && emailSant) {
onFabVisible(true);
}
}
发送每个信息后调用此方法。
然后更改OnClickListener
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (checkValidation())
onFabVisible(false);
sendData();
}
});
并在sendData()方法中删除onFabVisible(true)
。