使用Android实现跨页面悬浮窗效果
更新时间:2024年11月08日 10:09:00 作者:xiaoerbuyu1233
这篇文章主要为大家详细介绍了如何使用Android实现跨页面悬浮窗效果,文中的示例代码讲解详细,感兴趣的小伙伴可以跟随小编一起学习一下
实现效果
在 Application#onCreate初始化
FloatingWindowManager .getInstance(App.this).setImg(R.drawable.ic_test).setWidthHeight(280,280) .setOnFloatingClickListener(new FloatingWindowManager.OnFloatingClickListener() { @Override public void onClick(FrameLayout floatingView) { Toast.makeText(floatingView.getContext(), "测试点击悬浮窗", Toast.LENGTH_SHORT).show(); } });
完整代码
import android.app.Activity; import android.app.Application; import android.content.ClipData; import android.content.ClipboardManager; import android.content.Context; import android.os.Bundle; import android.util.Log; import android.view.Gravity; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.Toast; import androidx.appcompat.app.AlertDialog; import java.util.List; /** * https://blog.csdn.net/xiaoerbuyu1233/article/details/143595475 * <p> * 跨页面悬浮窗 Application#onCreate 初始化 * <p> * FloatingWindowManager * .getInstance(App.this).setImg(R.drawable.ic_test).setWidthHeight(280,280) * .setOnFloatingClickListener(new FloatingWindowManager.OnFloatingClickListener() { * * @Override public void onClick(FrameLayout floatingView) { * Toast.makeText(floatingView.getContext(), "测试点击悬浮窗", Toast.LENGTH_SHORT).show(); * } * }); */ public class FloatingWindowManager { private static FloatingWindowManager instance; private final Context context; private FrameLayout floatingView; private ViewGroup rootView; private OnFloatingClickListener listener; private int width = 200, height = 200; private Application.ActivityLifecycleCallbacks activityLifecycleCallbacks; private FloatingWindowManager(Context context) { this.context = context; initFloatingView(); registerActivityLifecycleCallbacks(); } public static synchronized FloatingWindowManager getInstance(Context context) { if (instance == null) { instance = new FloatingWindowManager(context); } return instance; } private void registerActivityLifecycleCallbacks() { Application application = (Application) context.getApplicationContext(); activityLifecycleCallbacks = new Application.ActivityLifecycleCallbacks() { @Override public void onActivityCreated(Activity activity, Bundle savedInstanceState) { Log.d("FloatingWindowManager", "onActivityCreated: " + activity.getLocalClassName()); // 可以在这里附加悬浮窗口到新创建的 Activity attachToActivity(activity); } @Override public void onActivityStarted(Activity activity) { Log.d("FloatingWindowManager", "onActivityStarted: " + activity.getLocalClassName()); } @Override public void onActivityResumed(Activity activity) { Log.d("FloatingWindowManager", "onActivityResumed: " + activity.getLocalClassName()); attachToActivity(activity); } @Override public void onActivityPaused(Activity activity) { detachFromActivity(); Log.d("FloatingWindowManager", "onActivityPaused: " + activity.getLocalClassName()); } @Override public void onActivityStopped(Activity activity) { Log.d("FloatingWindowManager", "onActivityStopped: " + activity.getLocalClassName()); } @Override public void onActivitySaveInstanceState(Activity activity, Bundle outState) { Log.d("FloatingWindowManager", "onActivitySaveInstanceState: " + activity.getLocalClassName()); } @Override public void onActivityDestroyed(Activity activity) { Log.d("FloatingWindowManager", "onActivityDestroyed: " + activity.getLocalClassName()); } }; // 注册 Activity 生命周期回调 application.registerActivityLifecycleCallbacks(activityLifecycleCallbacks); } public FloatingWindowManager setImg(int icon) { // 使用资源ID直接设置背景 if (floatingView != null) { floatingView.setBackgroundResource(icon); } // // 获取Drawable对象 // Drawable drawable = ContextCompat.getDrawable(context, R.drawable.ic_test); // // // 设置背景 // if (drawable != null) { // floatingView.setBackground(drawable); // } return this; } public FloatingWindowManager setWidthHeight(int width, int height) { this.width = width; this.height = height; // 设置布局参数 FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(width, height); // 宽度和高度 layoutParams.gravity = Gravity.TOP | Gravity.START; floatingView.setLayoutParams(layoutParams); return this; } private void initFloatingView() { // 初始化悬浮窗视图 floatingView = new FrameLayout(context) { @Override public boolean performClick() { if (super.performClick()) { return true; } if (listener != null) { floatingView.getHandler().post(() -> listener.onClick(floatingView)); } return true; } }; floatingView.setOnTouchListener(new View.OnTouchListener() { private int initialX, initialY; private float startX, startY; private static final int CLICK_DRAG_TOLERANCE = 40; // 点击和拖动之间的容差距离 @Override public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN: initialX = (int) (event.getRawX() - v.getX()); initialY = (int) (event.getRawY() - v.getY()); startX = event.getRawX(); startY = event.getRawY(); break; case MotionEvent.ACTION_MOVE: int newX = (int) (event.getRawX() - initialX); int newY = (int) (event.getRawY() - initialY); if (rootView != null) { v.setX(newX); v.setY(newY); } break; case MotionEvent.ACTION_UP: float endX = event.getRawX(); float endY = event.getRawY(); float distanceX = Math.abs(endX - startX); float distanceY = Math.abs(endY - startY); if (distanceX < CLICK_DRAG_TOLERANCE && distanceY < CLICK_DRAG_TOLERANCE) { // 如果移动的距离小于容差,那么我们认为这是一个点击 if (floatingView.performClick()) { return true; // 点击已被处理 } } else { // 如果移动的距离大于容差,那么我们认为这是一个拖动 snapToEdge(); } break; default: break; } return true; // 消耗事件 } }); // 设置布局参数 FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(width, height); // 宽度和高度 layoutParams.gravity = Gravity.TOP | Gravity.START; floatingView.setLayoutParams(layoutParams); } public void attachToActivity(Activity activity) { if (activity == null || floatingView == null) return; rootView = (ViewGroup) activity.findViewById(android.R.id.content); if (rootView != null && floatingView.getParent() == null) { rootView.addView(floatingView); } } public void detachFromActivity() { if (rootView != null && floatingView != null && floatingView.getParent() != null) { rootView.removeView(floatingView); } } public void setOnFloatingClickListener(OnFloatingClickListener listener) { this.listener = listener; } private void snapToEdge() { // 实现贴边功能 // 这里只是一个简单的例子,你可以根据自己的需求调整贴边的具体实现 int[] location = new int[2]; floatingView.getLocationOnScreen(location); int x = location[0]; int y = location[1]; int screenWidth = rootView.getWidth(); int screenHeight = rootView.getHeight(); int halfScreenWidth = screenWidth / 4; // 假设屏幕宽度的3/4处作为贴边判断点 if (x < halfScreenWidth) { floatingView.setX(0); } else { floatingView.setX(screenWidth - floatingView.getWidth()); } } public interface OnFloatingClickListener { void onClick(FrameLayout floatingView); } /** * 显示一个列表对话框,用户点击列表项后会将该项内容复制到剪贴板 * * @param context 上下文 * @param items 列表项数据 */ public static void showListDialogCopy(Context context, String title, List<String> items) { // 创建一个AlertDialog.Builder对象 AlertDialog.Builder builder = new AlertDialog.Builder(context); // 设置对话框标题 builder.setTitle(title); // 设置列表项 builder.setItems(items.toArray(new CharSequence[0]), (dialog, which) -> { // 获取用户选择的项 String selectedItem = items.get(which); // 复制文本到剪贴板 ClipboardManager clipboard = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE); ClipData clip = ClipData.newPlainText("label", selectedItem); clipboard.setPrimaryClip(clip); // 可选: 提示用户已成功复制 Toast.makeText(context, "已复制: " + selectedItem, Toast.LENGTH_SHORT).show(); // 关闭对话框 dialog.dismiss(); }); // 创建并显示对话框 AlertDialog dialog = builder.create(); dialog.show(); } }
代码很简单不多解释 无非是添加隐藏
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