Question

回答here：

Intent i=new Intent(android.content.Intent.ACTION_SEND);
i.setType("text/plain");
i.putExtra(android.content.Intent.EXTRA_SUBJECT,"Subject test");
i.putExtra(android.content.Intent.EXTRA_TEXT, "extra text that you want to put");
startActivity(Intent.createChooser(i,"Share via"));

在Lollipop上它给了我类似this（一个垂直列表）的东西。

但有时我会看到像this这样的网格布局。例如：Youtube App的“分享视频”。

为什么布局不同？如何获取共享对话框的网格布局？

Answer 1

您必须像这样创建自定义选择器。

public class ShareAdapter extends BaseAdapter {

    protected static final String TAG = "ShareAdapter";
    Intent sendIntent = new Intent(Intent.ACTION_SEND);
    protected Context context;
    protected List<ResolveInfo> list = new ArrayList<>();
    protected PackageManager pm;

    public ShareAdapter(Context context) {
        Log.d(TAG, "ShareAdapter");
        this.context = context;
        pm = context.getPackageManager();
        sendIntent.setType("image/*");
        list = pm.queryIntentActivities(sendIntent, 0);
    }

    public void updateList(@NonNull List<ResolveInfo> list) {
        this.list = list;
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public ResolveInfo getItem(int position) {
        return list.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.item_chooser, parent, false);

            holder = new ViewHolder();
            holder.icon = (ImageView) convertView.findViewById(R.id.icon);
            holder.name = (TextView) convertView.findViewById(R.id.name);
            convertView.setTag(holder);
        } else
            holder = (ViewHolder) convertView.getTag();

        holder.icon.setImageDrawable(getItem(position).loadIcon(pm));
        holder.name.setText(getItem(position).loadLabel(pm));
        return convertView;
    }

    static class ViewHolder {
        ImageView icon;
        TextView name;
    }
}


 public void showCustomChooser(final Uri uri) {
        ShareAdapter shareAdapter = new ShareAdapter(context);
        dialog = new Dialog(ShareActivity.this);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        WindowManager.LayoutParams WMLP = dialog.getWindow().getAttributes();
        WMLP.gravity = Gravity.CENTER;
        dialog.getWindow().setAttributes(WMLP);
        dialog.getWindow().setGravity(Gravity.BOTTOM);
        dialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
        dialog.getWindow().getAttributes().windowAnimations = R.style.DialogAnimationBottom;
        dialog.setCanceledOnTouchOutside(true);
        dialog.setContentView(R.layout.popup_chooser);
        dialog.setCancelable(true);
        ListView lv = (ListView) dialog.findViewById(R.id.listView);
        ImageButton cancel = (ImageButton) dialog.findViewById(R.id.cancel);
        cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();
            }
        });

        lv.setAdapter(shareAdapter);
        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) {
                ResolveInfo launchable = shareAdapter.getItem(position);
                ActivityInfo activity = launchable.activityInfo;
                ComponentName name = new ComponentName(activity.applicationInfo.packageName, activity.name);
                Intent sendIntent = new Intent(Intent.ACTION_SEND);
                sendIntent.addCategory(Intent.CATEGORY_LAUNCHER);
                sendIntent.setType("image/*");
                sendIntent.putExtra(Intent.EXTRA_STREAM, uri);
                sendIntent.putExtra(Intent.EXTRA_TEXT, "some text");
                sendIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                sendIntent.setComponent(name);
                context.startActivity(sendIntent);
                dialog.dismiss();
            }
        });
        dialog.show();
    }

popup_chooser

<?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="350dp"
    android:layout_margin="0dp"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@color/white"
        android:gravity="center_horizontal"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="48dp"
            android:layout_gravity="center"
            android:background="@color/white"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/textView1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:layout_marginLeft="12dp"
                android:gravity="center"
                android:text="@string/share_via"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="@color/black_transparent_50" />

            <View
                android:layout_width="0dp"
                android:layout_height="match_parent"
                android:layout_weight="1" />


            <ImageButton
                android:id="@+id/cancel"
                android:layout_width="48dp"
                android:layout_height="48dp"
                android:background="@drawable/transparent_button_selector"
                android:src="@android:drawable/btn_dialog"
                android:visibility="gone" />
        </LinearLayout>

        <View
            android:layout_width="match_parent"
            android:layout_height="1dp"
            android:background="@color/black_transparent_12" />

        <ListView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:dividerHeight="1dp"
            android:fadeScrollbars="false"></ListView>

    </LinearLayout>

</LinearLayout>

Item_chooser

<?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="wrap_content"
    android:orientation="horizontal"
    android:padding="4dp">

    <ImageView
        android:id="@+id/icon"
        android:layout_width="48dp"
        android:layout_height="48dp"
        android:layout_marginLeft="8dp"
        android:scaleType="centerCrop" />

    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginLeft="12dp"
        android:textColor="@color/black"
        android:textSize="20dp" />


</LinearLayout>

Answer 2

无论该特定手机的用户界面安装了什么。这基于Android版本，OEM，甚至可能是启动器应用程序。除非您想编写自己的选择器活动，否则无法控制它。

Android - “分享通过”对话框有不同的布局？

2 个答案: