diff --git a/src/Notes/app/src/main/java/net/micode/notes/ui/WelcomeActivity.java b/src/Notes/app/src/main/java/net/micode/notes/ui/WelcomeActivity.java new file mode 100644 index 0000000..b709333 --- /dev/null +++ b/src/Notes/app/src/main/java/net/micode/notes/ui/WelcomeActivity.java @@ -0,0 +1,187 @@ +package net.micode.notes.ui; + +import android.annotation.SuppressLint; +import android.support.v7.app.ActionBar; +import android.support.v7.app.AppCompatActivity; +import android.os.Build; +import android.os.Bundle; +import android.os.Handler; +import android.os.Looper; +import android.view.MotionEvent; +import android.view.View; +import android.view.WindowInsets; + +import net.micode.notes.databinding.ActivityWelcomeBinding; +import net.micode.notes.R; + +/** + * An example full-screen activity that shows and hides the system UI (i.e. + * status bar and navigation/system bar) with user interaction. + */ +public class WelcomeActivity extends AppCompatActivity { + /** + * Whether or not the system UI should be auto-hidden after + * {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds. + */ + private static final boolean AUTO_HIDE = true; + + /** + * If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after + * user interaction before hiding the system UI. + */ + private static final int AUTO_HIDE_DELAY_MILLIS = 3000; + + /** + * Some older devices needs a small delay between UI widget updates + * and a change of the status and navigation bar. + */ + private static final int UI_ANIMATION_DELAY = 300; + private final Handler mHideHandler = new Handler(Looper.myLooper()); + private View mContentView; + private final Runnable mHidePart2Runnable = new Runnable() { + @SuppressLint("InlinedApi") + @Override + public void run() { + // Delayed removal of status and navigation bar + if (Build.VERSION.SDK_INT >= 30) { + mContentView.getWindowInsetsController().hide( + WindowInsets.Type.statusBars() | WindowInsets.Type.navigationBars()); + } else { + // Note that some of these constants are new as of API 16 (Jelly Bean) + // and API 19 (KitKat). It is safe to use them, as they are inlined + // at compile-time and do nothing on earlier devices. + mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE + | View.SYSTEM_UI_FLAG_FULLSCREEN + | View.SYSTEM_UI_FLAG_LAYOUT_STABLE + | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY + | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION + | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION); + } + } + }; + private View mControlsView; + private final Runnable mShowPart2Runnable = new Runnable() { + @Override + public void run() { + // Delayed display of UI elements + ActionBar actionBar = getSupportActionBar(); + if (actionBar != null) { + actionBar.show(); + } + mControlsView.setVisibility(View.VISIBLE); + } + }; + private boolean mVisible; + private final Runnable mHideRunnable = new Runnable() { + @Override + public void run() { + hide(); + } + }; + /** + * Touch listener to use for in-layout UI controls to delay hiding the + * system UI. This is to prevent the jarring behavior of controls going away + * while interacting with activity UI. + */ + private final View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() { + @Override + public boolean onTouch(View view, MotionEvent motionEvent) { + switch (motionEvent.getAction()) { + case MotionEvent.ACTION_DOWN: + if (AUTO_HIDE) { + delayedHide(AUTO_HIDE_DELAY_MILLIS); + } + break; + case MotionEvent.ACTION_UP: + view.performClick(); + break; + default: + break; + } + return false; + } + }; + private ActivityWelcomeBinding binding; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + binding = ActivityWelcomeBinding.inflate(getLayoutInflater()); + setContentView(binding.getRoot()); + + mVisible = true; + mControlsView = binding.fullscreenContentControls; + mContentView = binding.fullscreenContent; + + // Set up the user interaction to manually show or hide the system UI. + mContentView.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View view) { + toggle(); + } + }); + + // Upon interacting with UI controls, delay any scheduled hide() + // operations to prevent the jarring behavior of controls going away + // while interacting with the UI. + binding.dummyButton.setOnTouchListener(mDelayHideTouchListener); + } + + @Override + protected void onPostCreate(Bundle savedInstanceState) { + super.onPostCreate(savedInstanceState); + + // Trigger the initial hide() shortly after the activity has been + // created, to briefly hint to the user that UI controls + // are available. + delayedHide(100); + } + + private void toggle() { + if (mVisible) { + hide(); + } else { + show(); + } + } + + private void hide() { + // Hide UI first + ActionBar actionBar = getSupportActionBar(); + if (actionBar != null) { + actionBar.hide(); + } + mControlsView.setVisibility(View.GONE); + mVisible = false; + + // Schedule a runnable to remove the status and navigation bar after a delay + mHideHandler.removeCallbacks(mShowPart2Runnable); + mHideHandler.postDelayed(mHidePart2Runnable, UI_ANIMATION_DELAY); + } + + private void show() { + // Show the system bar + if (Build.VERSION.SDK_INT >= 30) { + mContentView.getWindowInsetsController().show( + WindowInsets.Type.statusBars() | WindowInsets.Type.navigationBars()); + } else { + mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN + | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION); + } + mVisible = true; + + // Schedule a runnable to display UI elements after a delay + mHideHandler.removeCallbacks(mHidePart2Runnable); + mHideHandler.postDelayed(mShowPart2Runnable, UI_ANIMATION_DELAY); + } + + /** + * Schedules a call to hide() in delay milliseconds, canceling any + * previously scheduled calls. + */ + private void delayedHide(int delayMillis) { + mHideHandler.removeCallbacks(mHideRunnable); + mHideHandler.postDelayed(mHideRunnable, delayMillis); + } +} \ No newline at end of file diff --git a/src/Notes/app/src/main/res/drawable-hdpi/welcome.png b/src/Notes/app/src/main/res/drawable-hdpi/welcome.png new file mode 100644 index 0000000..2d6d825 Binary files /dev/null and b/src/Notes/app/src/main/res/drawable-hdpi/welcome.png differ diff --git a/src/Notes/app/src/main/res/layout/activity_welcome.xml b/src/Notes/app/src/main/res/layout/activity_welcome.xml new file mode 100644 index 0000000..5477945 --- /dev/null +++ b/src/Notes/app/src/main/res/layout/activity_welcome.xml @@ -0,0 +1,51 @@ + + + + + + + + + + + +