chatbackgroundmaker.java

来自「Android平台上即时通讯聊天工具源代码。 支持手机聊天。」· Java 代码 · 共 63 行

/*
 * Copyright (C) 2008 Esmertec AG.
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.im.app;

import com.android.im.R;

import android.content.Context;
import android.content.res.Resources;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.provider.Im;
import android.view.View;

public class ChatBackgroundMaker {
    private final Drawable mIncomingBg;
    private final Drawable mDivider;
    private final Rect mPadding;

    public ChatBackgroundMaker(Context context) {
        Resources res = context.getResources();
        mIncomingBg = res.getDrawable(R.drawable.textfield_im_received);
        mDivider = res.getDrawable(R.drawable.text_divider_horizontal);
        mPadding = new Rect();
        mIncomingBg.getPadding(mPadding);
    }

    public void setBackground(MessageView view, String contact, int type) {
        View msgText = view.findViewById(R.id.message);

        switch (type) {
            case Im.MessageType.INCOMING:
                // TODO: set color according different contact
                msgText.setBackgroundDrawable(mIncomingBg);
                break;

            case Im.MessageType.OUTGOING:
            case Im.MessageType.POSTPONED:
                msgText.setBackgroundDrawable(null);
                msgText.setPadding(mPadding.left, mPadding.top, mPadding.right,
                      mPadding.bottom);
                break;

            default:
                msgText.setBackgroundDrawable(mDivider);
        }
    }
}