Android自定义键盘布局，侧面留有白色边距 [英] Android custom keyboard layout leaving a margin of white at the side

问题描述

我正在为Android使用自定义键盘，但遇到了一个问题，即键盘似乎在右侧留了一个白线/空格，而不是填充了父视图...(不要请注意图标，暂时只是占位符图形)

I'm working on a custom keyboard for Android, and I've run in to an issue where the keyboard seems to leave a white line/space at right, instead of filling the parent view... (don't mind the icons, it's simply placeholder graphic for now)

在下面您可以看到我的布局...

Below you can see my layout...

<Keyboard xmlns:android="http://schemas.android.com/apk/res/android"
    android:keyWidth="14%p"
    android:horizontalGap="0px"
    android:verticalGap="0px"
    android:keyHeight="60dp"
    >
    <Row>
        <Key android:codes="49" android:keyIcon="@drawable/rsz_emoji" android:horizontalGap="1%p" android:keyEdgeFlags="left"/>
        <Key android:codes="50" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="51" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="52" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="53" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="54" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="48" android:keyIcon="@drawable/rsz_emoji" android:keyEdgeFlags="right"/>
    </Row>
    <Row>
        <Key android:codes="113" android:keyIcon="@drawable/rsz_emoji" android:horizontalGap="8%p" android:keyEdgeFlags="left"/>
        <Key android:codes="114" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="116" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="121" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="111" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="112" android:keyIcon="@drawable/rsz_emoji" android:keyEdgeFlags="right"/>
    </Row>
    <Row>
        <Key android:codes="1" android:keyIcon="@drawable/rsz_emoji" android:keyWidth="28%p" android:horizontalGap="8%p" android:keyEdgeFlags="left"/>
        <Key android:codes="46" android:keyIcon="@drawable/rsz_emoji" android:keyWidth="28%p"/>
        <Key android:codes="58" android:keyIcon="@drawable/rsz_emoji" android:keyWidth="28%p" android:keyEdgeFlags="right"/>
    </Row>
    <Row android:rowEdgeFlags="bottom">
        <Key android:codes="44" android:keyIcon="@drawable/globe" android:horizontalGap="8%p" android:keyEdgeFlags="left"/>
        <Key android:codes="47" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="32" android:keyIcon="@drawable/rsz_emoji" android:keyWidth="28%p"/>
        <Key android:codes="1" android:keyIcon="@drawable/rsz_emoji"/>
        <Key android:codes="-5" android:keyIcon="@drawable/backspace" android:keyEdgeFlags="right"/>
    </Row>
</Keyboard>

据我所知，这是1%p的问题...但是我有点不确定如何填充它而不弄乱我的对齐方式.将第一行的间距更改为2可以解决该问题，但会弄乱对齐方式.

As far as I can see, it's a matter of 1%p... But I'm a bit unsure how to fill it without messing up my alignments... E.g. changing the gap in the first row to 2 would fix it, but mess up the alignment.

根据要求为您添加了额外的代码...

Added extra code for you as requested...

我的课程扩展了InputMethodService:

    private KeyboardView kv;
    private Keyboard keyboard;

    @Override
    public View onCreateInputView() {
        kv = (KeyboardView)getLayoutInflater().inflate(R.layout.keyboard, null);
        keyboard = new Keyboard(this, R.xml.custom_keyboard);
        kv.setPreviewEnabled(false);
        kv.setKeyboard(keyboard);
        kv.setOnKeyboardActionListener(this);
        return kv;
    }

    @Override
    public void onPress(int primaryCode) {

    }

    @Override
    public void onRelease(int primaryCode) {

    }

    @Override
    public void onKey(int primaryCode, int[] keyCodes) {
        InputConnection ic = getCurrentInputConnection();

        if (primaryCode == Keyboard.KEYCODE_DELETE) {
            ic.deleteSurroundingText(1, 0);
        } else {
            Drawable mDrawable = ResourcesCompat.getDrawable(getResources(), R.drawable.rsz_emoji, null);
            Bitmap mBitmap = ((BitmapDrawable)mDrawable).getBitmap();
            String path = MediaStore.Images.Media.insertImage(getContentResolver(), mBitmap, "Emoticon", null);
            Uri fileUri = Uri.parse(path);

            Intent picMessageIntent = new Intent(Intent.ACTION_SEND);
            picMessageIntent.setPackage("com.android.mms");
            picMessageIntent.putExtra(Intent.EXTRA_STREAM, fileUri);
            picMessageIntent.setType("image/png");
            picMessageIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(picMessageIntent);
        }
    }

    @Override
    public void onText(CharSequence text) {

    }

    @Override
    public void swipeLeft() {

    }

    @Override
    public void swipeRight() {

    }

    @Override
    public void swipeDown() {

    }

    @Override
    public void swipeUp() {

    }

我的Keyboard.xml

My Keyboard.xml

<?xml version="1.0" encoding="utf-8"?>
<android.inputmethodservice.KeyboardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/keyboard"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    />

Styles.xml

Styles.xml

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
</resources>

清单:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="CENSORED" >

    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <!-- Declares the input method service -->
        <service android:name=".CENSORED"
            android:label="@string/keyboard_name"
            android:permission="android.permission.BIND_INPUT_METHOD">
            <intent-filter>
                <action android:name="android.view.InputMethod" />
            </intent-filter>
            <meta-data android:name="android.view.im"
                android:resource="@xml/method" />
        </service>
    </application>

    <uses-permission android:name="android.permission.INTERNET" />
</manifest>

推荐答案

我无法重现该错误，我提供了一个屏幕截图，其中包含浅色背景应用程序和所有相关代码.我不确定在哪里出错了，而没有看到整个项目和目录，所以我发布了相关的xml.还有一个服务类，我没有包含(因为您显然可以使用它).

I cannot reproduce the error, I have provided a screenshot, with a light background app and all my relevant code. I am not sure exactly where you are going wrong without seeing the whole project and directories, so I've posted the relevant xml. There is a service class also, I haven't included (as you obviously have it working).

<Keyboard>代码位于resources/xml文件夹中名为qwerty.xml的文件中，带有名为method.xml的文件:

The <Keyboard> code is in a file called qwerty.xml in the resources/xml folder, with a file called method.xml:

除了替换图像外，我在qwerty.xml中使用了所有键盘尺寸.

I used all your keyboard dimensions in the qwerty.xml, except I replaced the image.

method.xml

<?xml version="1.0" encoding="utf-8"?>
<input-method xmlns:android="http://schemas.android.com/apk/res/android">
<subtype
    android:label="@string/subtype_en_US"
    android:imeSubtypeLocale="en_US"
    android:imeSubtypeMode="keyboard" />
</input-method>

两个布局文件:

keyboard.xml

<?xml version="1.0" encoding="UTF-8"?>
<android.inputmethodservice.KeyboardView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/keyboard"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:keyPreviewLayout ="@layout/preview"
/>

preview.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ffff00"
    android:gravity="center"
    android:textSize="30sp
    android:textStyle="bold">
</TextView>

样式:

<resources>
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
</resources>

在清单中的应用程序中:

In the manifest, within application:

<service
    android:name=".SimpleIME"
    android:label="@string/simple_ime"
    android:permission="android.permission.BIND_INPUT_METHOD"
    >
    <meta-data
        android:name="android.view.im"
        android:resource="@xml/method"/>
    <intent-filter>
        <action android:name="android.view.InputMethod"/>
    </intent-filter>
</service>

我把图像留得太大了，所以您可以清楚地看到没有缝隙.

I've left the image so large so you can clearly see there is no gap.

此链接也将逐步介绍以下代码:

This link here also steps through this code:

http://code. tutsplus.com/tutorials/create-a-custom-keyboard-on-android--cms-22615

修改1

在评论中进行讨论之后，我建议您检查您的背景样式，因为键盘窗口可能会显示默认背景颜色的问题/更改.此答案 https://stackoverflow.com/a/33052648/3956566 中对此问题进行了详细解决.我不会重申细节，因为该链接不太可能被腐烂，因此被贴为SO帖子.

After discussion in the comments, I would suggest checking your background style as there are issues/changes with the default background color may be showing for the keyboard window. This is addressed in detail issue in this answer https://stackoverflow.com/a/33052648/3956566. I won't reiterate the details, as the link is unlikely to rot, being an upvoted SO post.

修改2

确定在输入法服务中添加差异:

Ok Adding the difference in the input method service:

@Override
public void onKey(int primaryCode, int[] keyCodes) {
    InputConnection ic = getCurrentInputConnection();

    switch(primaryCode){
        case Keyboard.KEYCODE_DELETE :
            ic.deleteSurroundingText(1, 0);
            break;
        case Keyboard.KEYCODE_SHIFT:
            caps = !caps;
            keyboard.setShifted(caps);
            kv.invalidateAllKeys();
            break;
        case Keyboard.KEYCODE_DONE:
            ic.sendKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER));
            break;
        default:
            char code = (char)primaryCode;
            if(Character.isLetter(code) && caps){
                code = Character.toUpperCase(code);
            }
            ic.commitText(String.valueOf(code),1);
    }
}

修改3

创建一个空白项目(键盘没有任何活动)来测试并将其作为单独的应用程序运行.您在启动器活动中使用android:theme="@style/AppTheme.NoActionBar"，并且背景不透明度和Windows/视图可能存在问题.

Create a blank project, no activity for your keyboard, to test and run it as a separate app. You are using android:theme="@style/AppTheme.NoActionBar" In your launcher activity and there may be an issue with background opacity and your windows/views.

这篇关于Android自定义键盘布局，侧面留有白色边距的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！