Android Toolbar Einblenden und Ausblenden
26.09.2018
(๐5994)
Toolbar ein/ausblenden
Die Toolbar kann man รผber die Visibility Attribut
ein-Ausschalten
Es gibt leider keine Expand-/Hide Button.
public void btnToolbar_onClick(View view) {
//------------< btnToolbar_onClick() >------------
//* show or hide toolbar
//< get toolbar >
Toolbar toolbar = findViewById(R.id.toolbar2);
//</ get toolbar >
//< show/hide >
if(toolbar.getVisibility()==View.VISIBLE)
{
toolbar.setVisibility(View.INVISIBLE);
}
else
{
toolbar.setVisibility(View.VISIBLE);
}
//</ show/hide >
//------------</
btnToolbar_onClick() >------------
}
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Example: Java code
package com.codedocu.demo06_toolbar;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toolbar;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
public void btn_Clicked(View
view) {
//------------< btn_Clicked() >------------
//< get_Toolbar_Edit >
EditText tbx=findViewById(R.id.input_textbox);
String
sText=tbx.getText().toString();
//</ get_Toolbar_Edit >
//< output >
TextView lbl=findViewById(R.id.lblTarget);
lbl.setText(sText);
//</ output >
//------------</
btn_Clicked() >------------
}
public void btnToolbar_onClick(View
view) {
//------------< btnToolbar_onClick()
>------------
//* show or hide toolbar
//< get toolbar >
Toolbar toolbar = findViewById(R.id.toolbar2);
//</ get toolbar >
//< show/hide >
if(toolbar.getVisibility()==View.VISIBLE)
{
toolbar.setVisibility(View.INVISIBLE);
}
else
{
toolbar.setVisibility(View.VISIBLE);
}
//</ show/hide >
//------------</
btnToolbar_onClick() >------------
}
}
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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">
<Toolbar
android:id="@+id/toolbar2"
android:layout_width="368dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:background="?attr/colorPrimary"
android:clickable="true"
android:elevation="9dp"
android:minHeight="?attr/actionBarSize"
android:theme="?attr/actionBarTheme"
android:visibility="visible"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<EditText
android:id="@+id/input_textbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ems="10"
android:inputType="textPersonName"
android:text="Name"
tools:layout_editor_absoluteX="76dp"
tools:layout_editor_absoluteY="124dp" />
<Button
android:id="@+id/button"
android:layout_width="81dp"
android:layout_height="55dp"
android:layout_marginStart="16dp"
android:onClick="btn_Clicked"
android:text="Test"
app:layout_constraintStart_toStartOf="parent"
tools:layout_editor_absoluteY="448dp" />
</Toolbar>
<TextView
android:id="@+id/lblTarget"
android:layout_width="120dp"
android:layout_height="101dp"
android:layout_marginStart="84dp"
android:layout_marginTop="84dp"
android:text="empty start"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageButton
android:id="@+id/imageButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="76dp"
android:layout_marginEnd="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="@+id/toolbar2"
app:srcCompat="@android:drawable/ic_menu_manage"
android:onClick="btnToolbar_onClick"
/>
</android.support.constraint.ConstraintLayout>
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