Android 分享控件的实现代码
2018-03-29 09:15
627 查看
如今很多应用都提供向外分享信息的功能,在进行分享操作时,一般是从屏幕底部弹出所有具备分享功能的应用列表,再由用户进行选择
现在我就来模仿实现这种效果,不仅使分享控件从屏幕底部弹出,还要使分享控件能够上下拖动,这就需要使用到 design 包提供的 BottomSheetDialog 控件了
首先,声明
BottomSheetDialog对话框的主布局
dialog_bottom_sheet.xml
当中,RecyclerView 用于展示提供分享功能的应用列表
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="14dp" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="14dp" android:text="进一步的说明 -> leavesC" android:textAppearance="@style/TextAppearance.AppCompat" android:textSize="16sp"/> <View android:layout_width="match_parent" android:layout_height="0.6dp" android:background="#ddd"/> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:padding="12dp" android:paddingStart="14dp" android:text="分享文本信息到..." android:textAppearance="@style/TextAppearance.AppCompat" android:textSize="14sp"/> <android.support.v7.widget.RecyclerView android:id="@+id/rv_appList" android:layout_width="match_parent" android:layout_height="match_parent"/> </LinearLayout>
RecyclerView 单个子项使用的布局
item_app.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="wrap_content" android:paddingBottom="8dp" android:paddingLeft="16dp" android:paddingRight="16dp" android:paddingTop="8dp"> <ImageView android:id="@+id/iv_appIcon" android:layout_width="50dp" android:layout_height="50dp" android:scaleType="centerCrop" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toTopOf="parent" tools:src="@mipmap/ic_launcher"/> <TextView android:id="@+id/tv_appName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="3dp" android:ellipsize="end" android:maxLength="6" android:textSize="12sp" app:layout_constraintEnd_toEndOf="parent" app:layout_constraintStart_toStartOf="parent" app:layout_constraintTop_toBottomOf="@id/iv_appIcon" tools:text="之乎者也"/> </android.support.constraint.ConstraintLayout>
RecyclerView 配套使用的 Adapter :
AppShareAdapter
/** * 作者:叶应是叶 * 时间:2018/3/28 20:30 * 描述:https://github.com/leavesC */ public class AppShareAdapter extends RecyclerView.Adapter<AppShareAdapter.ViewHolder> { public interface OnClickListener { void onClick(int position); } public interface OnLongClickListener { void onLongClick(int position); } private List<App> appList; private LayoutInflater layoutInflater; private OnClickListener clickListener; private OnLongClickListener longClickListener; AppShareAdapter(Context context, List<App> appList) { this.layoutInflater = LayoutInflater.from(context); this.appList = appList; } @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = layoutInflater.inflate(R.layout.item_app, parent, false); return new AppShareAdapter.ViewHolder(view); } @Override public void onBindViewHolder(final ViewHolder holder, int position) { holder.iv_appIcon.setBackground(appList.get(position).getAppIcon()); holder.tv_appName.setText(appList.get(position).getAppName()); holder.itemView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (clickListener != null) { clickListener.onClick(holder.getAdapterPosition()); } } }); holder.itemView.setOnLongClickListener(new View.OnLongClickListener() { @Override public boolean onLongClick(View v) { if (longClickListener != null) { longClickListener.onLongClick(holder.getAdapterPosition()); } return true; } }); } @Override public int getItemCount() { return appList.size(); } void setClickListener(OnClickListener clickListener) { this.clickListener = clickListener; } void setLongClickListener(OnLongClickListener longClickListener) { this.longClickListener = longClickListener; } class ViewHolder extends RecyclerView.ViewHolder { private ImageView iv_appIcon; private TextView tv_appName; ViewHolder(View itemView) { super(itemView); iv_appIcon = itemView.findViewById(R.id.iv_appIcon); tv_appName = itemView.findViewById(R.id.tv_appName); } } }
利用 Intent 找出所有提供分享功能的应用,初始化 BottomSheetDialog 即可
/** * 作者:叶应是叶 * 时间:2018/3/28 20:30 * 描述:https://github.com/leavesC */ public class MainActivity extends AppCompatActivity { private List<App> appList; private BottomSheetDialog bottomSheetDialog; private Intent shareIntent; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); shareIntent = new Intent(Intent.ACTION_SEND); shareIntent.setType("text/plain"); shareIntent.putExtra(Intent.EXTRA_TEXT, "https://github.com/leavesC"); } public void originalShare(View view) { Intent intent = Intent.createChooser(shareIntent, "分享一段文本信息"); if (shareIntent.resolveActivity(getPackageManager()) != null) { startActivity(intent); } } public void customizedShare(View view) { if (bottomSheetDialog == null) { bottomSheetDialog = new BottomSheetDialog(this); bottomSheetDialog.setContentView(R.layout.dialog_bottom_sheet); initBottomDialog(); } bottomSheetDialog.show(); } private void initBottomDialog() { appList = getShareAppList(this, shareIntent); AppShareAdapter appShareAdapter = new AppShareAdapter(this, appList); appShareAdapter.setClickListener(new AppShareAdapter.OnClickListener() { @Override public void onClick(int position) { Intent intent = new Intent(Intent.ACTION_SEND); intent.setComponent(new ComponentName(appList.get(position).getPackageName(), appList.get(position).getMainClassName())); intent.setType("text/plain"); intent.putExtra(Intent.EXTRA_TEXT, "https://github.com/leavesC"); startActivity(intent); } }); appShareAdapter.setLongClickListener(new AppShareAdapter.OnLongClickListener() { @Override public void onLongClick(int position) { Intent intent = new Intent(); intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS); intent.setData(Uri.parse("package:" + appList.get(position).getPackageName())); startActivity(intent); } }); RecyclerView rv_appList = bottomSheetDialog.findViewById(R.id.rv_appList); if (rv_appList != null) { rv_appList.setLayoutManager(new GridLayoutManager(this, 4)); rv_appList.setAdapter(appShareAdapter); } } public static List<App> getShareAppList(Context context, Intent intent) { List<App> appList = new ArrayList<>(); PackageManager packageManager = context.getPackageManager(); List<ResolveInfo> resolveInfoList = packageManager.queryIntentActivities(intent, PackageManager.COMPONENT_ENABLED_STATE_DEFAULT); if (resolveInfoList == null || resolveInfoList.size() == 0) { return null; } else { for (ResolveInfo resolveInfo : resolveInfoList) { App appInfo = new App(resolveInfo.loadLabel(packageManager).toString(), resolveInfo.activityInfo.packageName, resolveInfo.activityInfo.name, resolveInfo.loadIcon(packageManager)); appList.add(appInfo); } } return appList; } }
这里提供上述示例代码: ShareDialog_Demo
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。
您可能感兴趣的文章:
相关文章推荐
- 用HTML+JS实现Android闹钟功能,附带Alarm代码分享
- 【源码】实现Android闹钟功能使用HTML+JS,并附带Alarm代码分享
- Cocos2d-x3.3RC0通过JNI调用Android的Java层代码,实现分享功能
- Android 自定义圆圈进度并显示百分比例控件(纯代码实现)
- android完美实现 拍照 选择图片 剪裁等代码分享
- 在android中利用多线程实现对控件的更新(动态修改文本框中的值)。简述原理并上传代码。 .
- javascript实现WEB打印(用window.open()实现).不用安装任何控件.(含代码)分享
- Android自定义控件之圆形/圆角的实现代码
- 安卓(Android)聊天机器人实现代码分享
- Android开发中实现用户注册和登陆的代码实例分享
- 基于KO+BootStrap+MVC实现的分页控件代码分享
- Android 拖拽效果实现代码分享 - ORIETech
- Android控件Spinner实现下拉列表测试代码
- android完美实现 拍照 选择图片 剪裁等代码分享
- Android在OnCreate中获取控件的宽度和高度的实现代码
- Android实现显示电量的控件代码
- android 分享功能,实现分享的程序与进行分享信息的代码
- Android通过自定义ImageView控件实现图片的缩放和拖动的实现代码
- c#打印预览控件中实现用鼠标移动页面功能代码分享
- Android中如何用代码实现打开、卸载和分享其他已安装应用