Я просто хочу добавить метод onClick в мою кнопку Image, но кнопка image просто не видна, но в моем макете. Моя кнопка почему-то была видна, но мой метод onclick не работал. По какой-то причине кнопка с изображением видна в моем макете, но опять же не при запуске приложения.
MainActivity.java
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toast.makeText(this, "Welcome to Basic IPTV !", Toast.LENGTH_SHORT).show();
final Toolbar toolbar = findViewById(R.id.main_toolbar);
setSupportActionBar(toolbar);
isPreparing = false;
pauseisclicked = true;
imgbuttonisclicked = false;
isUp = false;
IsDisabled = false;
if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE)
!= PackageManager.PERMISSION_GRANTED){
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 1001);
}
//For now we just picked an arbitrary item to play
imgbutton = (ImageButton) findViewById(R.id.imageButton7);
txt = (TextView) findViewById(R.id.textView);
mainlist = (ListView) findViewById(R.id.mainlistview);
noresults = (TextView) findViewById(R.id.noresults);
noresults.setVisibility(View.INVISIBLE);
imgbutton.setVisibility(View.VISIBLE);
imgbutton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
new MaterialFilePicker()
.withActivity(MainActivity.this)
.withRequestCode(1000)
.withFilter(Pattern.compile(".*\\.m3u$")) // Filtering files and directories by file name using regexp
.withHiddenFiles(true) // Show hidden files and folders
.start();
}
});
}
макет, но текст:
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<ImageButton
android:id="@+id/imageButton7"
android:layout_width="80dp"
android:layout_height="0dp"
android:layout_marginStart="100dp"
android:layout_marginEnd="102dp"
android:layout_marginBottom="319dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="@+id/noresults"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="@+id/textView"
app:layout_constraintTop_toBottomOf="@+id/appBarLayout4"
app:srcCompat="@drawable/ic_add" />
<TextView
android:id="@+id/textView"
android:layout_width="338dp"
android:layout_height="99dp"
android:layout_marginTop="176dp"
android:layout_marginEnd="8dp"
android:text="First, add a m3u playlist from your M3U-Subscribtion by clicking the button below or click on the three dots and then on open m3u..."
app:layout_constraintEnd_toEndOf="@+id/mainlistview"
app:layout_constraintHorizontal_bias="0.723"
app:layout_constraintStart_toStartOf="@+id/mainlistview"
app:layout_constraintTop_toTopOf="@+id/mainlistview" />
<ListView
android:id="@+id/mainlistview"
android:layout_width="0dp"
android:layout_height="0dp"
android:gravity="right"
android:textSize="2dp"
app:layout_behavior="com.google.android.material.appbar.AppBarLayout$ScrollingViewBehavior"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/appBarLayout4">
</ListView>
<TextView
android:id="@+id/noresults"
android:layout_width="248dp"
android:layout_height="51dp"
android:layout_marginStart="8dp"
android:layout_marginTop="104dp"
android:layout_marginEnd="8dp"
android:text="No channel found"
android:textSize="30sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.496"
app:layout_constraintStart_toStartOf="@+id/mainlistview"
app:layout_constraintTop_toTopOf="@+id/mainlistview" />
<com.google.android.material.appbar.AppBarLayout
android:id="@+id/appBarLayout4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginBottom="278dp"
app:layout_constraintBottom_toTopOf="@+id/imageButton7"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<androidx.appcompat.widget.Toolbar
android:id="@+id/main_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="@style/Theme.AppCompat" />
</com.google.android.material.appbar.AppBarLayout>
Это мой макет:
Здесь: скриншот моего устройства (оно реально)
