自定义dialog样式，自动弹出软件盘

开发中android自带dialog样式有时候不能满足我们的需求，这时候就需要自定义样式了，调用dialog的setView方法可以自定义布局，代码如下

final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(context);

        View alertDialogView = View.inflate(context, R.layout.comment_input_layout, null);
        final AlertDialog alertDialog = alertDialogBuilder.create();
        alertDialog.setView(alertDialogView, 0, 0, 0, 0);

        final EditText editText = (EditText) alertDialogView.findViewById(R.id.etContent);

        alertDialog.show();

//      设置dialog从底部出现动画
        Window window = alertDialog.getWindow();
        window.setContentView(R.layout.comment_input_layout);
        window.setGravity(Gravity.BOTTOM);
        window.setWindowAnimations(R.style.comment_input_dilog_anim_style);
        WindowManager windowManager = ((Activity) context).getWindowManager();
        Display display = windowManager.getDefaultDisplay();
        WindowManager.LayoutParams lp = alertDialog.getWindow().getAttributes();
        lp.width = (int) (display.getWidth()); //设置宽度
        window.setAttributes(lp);
        });

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