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1.修改style.xml文件 增加

2.在代码中使用 R.style.CustomAlertDialogBackground这是引用方法

this.setSpeedDialog = new AlertDialog.Builder(getContext(),R.style.CustomAlertDialogBackground)        .setView(viewSetSpeed)        .setTitle("挤出倍率设置")        .setMessage((getActivity().getResources().getString(R.string.yi_wai_qing_kuang)))        .setCancelable(false)        .setNegativeButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();                ((ViewGroup) viewSetSpeed.getParent()).removeView(viewSetSpeed);            }        }).show();

this.setSpeedDialog = new AlertDialog.Builder(getContext(),R.style.CustomAlertDialogBackground)        .setView(viewSetSpeed)        .setTitle("挤压倍率设置")        .setMessage((getActivity().getResources().getString(R.string.yi_wai_qing_kuang)))        .setCancelable(false)        .setNegativeButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                dialog.dismiss();                ((ViewGroup) viewSetSpeed.getParent()).removeView(viewSetSpeed);            }        }).show();

 

3.最后是效果

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