Android Toast 工具 调用

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对应的一个工具类

public class ToastUtils {
    private static Toast sToast;
    private static Handler handler = new Handler(Looper.getMainLooper());

    public static void showToast(final Context context, final String msg) {

        if (sToast == null) {
            if (Looper.getMainLooper()==Looper.myLooper()){
                initToast(context, msg);
            }else {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        initToast(context, msg);
                    }
                });
            }
        }
        //判断当前代码是否是主线程
        if (Looper.myLooper() == Looper.getMainLooper()) {
            sToast.setText(msg);
            sToast.show();
        } else {
            handler.post(new Runnable() {
                @Override
                public void run() {
                    sToast.setText(msg);
                    sToast.show();
                }
            });
        }
    }

    private static void initToast(Context context, String msg) {
        sToast = Toast.makeText(context.getApplicationContext(), msg, Toast.LENGTH_SHORT);
        sToast.setText(msg);
    }

}

接下来 就是自己在封装的基类  或者activity里面调用  道理都一样

     //对应一个点击事件toast一下
        tv_apply_selled_submit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

         showMsg("格式错误");
            }
        });



下面的方法是自己定义的方法 里面对应的msg 就是toast的内容

  public void showMsg(String msg) {
        ToastUtils.showToast(ApplyjyActivity.this,msg);
    }

showMSG