Android封装吐司Toast

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为了在今后的项目中避免toast写多次，一下子出现多个toast的时候避免阻塞，这边就干脆将其封装之后再用。

首先需要创建一个MyToast工具类：

public class MyToast {
    private static Handler handler = new Handler(Looper.getMainLooper());
    private static Toast toast = null;
    private static Object synObj = new Object();
    public static void showMessage(final String msg) {
        showMessage(msg, Toast.LENGTH_SHORT);
    }
    /**
     * 根据设置的文本显示
     * @param msg
     */
    public static void showMessage(final int msg) {
        showMessage(msg, Toast.LENGTH_SHORT);
    }
    /**
     * 显示一个文本并且设置时长
     * @param msg
     * @param duration
     */
    public static void showMessage(final CharSequence msg, final int duration) {
        if (TextUtils.isEmpty(msg)) {
            MyLog.d("[ToastUtil] response message is null.");
            return;
        }
        handler.post(new Runnable() {
            @Override
            public void run() {
                synchronized (synObj) { 

                   //加上同步是为了每个toast只要有机会显示出来
                    if (toast != null) {
                        toast.setText(msg);
                        toast.setDuration(duration);
                    } else {
                        toast = Toast.makeText(BaseApplication.getInstance().getApplicationContext(), msg, duration);
                        TextView view = (TextView) toast.getView().findViewById(android.R.id.message);
                        if (view != null) {
                            view.setGravity(Gravity.CENTER);

                        }
                    }
                    toast.show();
                }
            }
        });
    }
    /**
     * 资源文件方式显示文本
     * @param id
     * @param duration
     */
    public static void showMessage(final int id, final int duration) {
        handler.post(new Runnable() {
            @Override
            public void run() {
                synchronized (synObj) {
                    if (toast != null) {
                        toast.setText(id);
                        toast.setDuration(duration);
                    } else {
                        toast = Toast.makeText(BaseApplication.getInstance().getApplicationContext(), id, duration);
                    }
                    toast.show();
                }
            }
        });
    }
}

将写好的工具类应用在实际项目中：

MyToast.showMessage("我是吐司！");

学以致用，谢谢~