如何使当点击AlertDialog中的按钮时,AlertDialog不被dismiss掉

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//通过反射来实现
@Override
    protected Dialog onCreateDialog(int id) {
        final AlertDialog.Builder builder=new AlertDialog.Builder(this);
        if(id==1){
            builder.setTitle("标题");
            builder.setMessage("消息");
            final EditText et = new EditText(this);
            et.setWidth(LayoutParams.FILL_PARENT);
            et.setPadding(5, 5 ,5, 5);
            et.setTextSize(18);
            et.setHeight(160);
            et.setGravity(Gravity.TOP);
            builder.setView(et);
            final AlertDialog ad = builder.create();
            ad.setButton("确定", new DialogInterface.OnClickListener(){
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    if(et.getText().toString().trim().length()==0){
                        try {
                            Field field = ad.getClass().getSuperclass()
                                    .getDeclaredField("mShowing");
                            field.setAccessible(true);
                            field.set(ad, false);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                }});
            ad.setButton2("取消",new DialogInterface.OnClickListener(){
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    try {
                        Field field = ad.getClass().getSuperclass()
                                .getDeclaredField("mShowing");
                        field.setAccessible(true);
                        field.set(ad, true);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }});
 
            return ad;
        }
        return super.onCreateDialog(id);
    }
posted @   ihou  阅读(3520)  评论(0编辑  收藏  举报
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