【Android】AlertDialog的使用

【要求】

读取的hdr图片，增加按钮去实现动态元数据参数的设置

【代码】

//XXXactivity.java调用
@Override
protected void onCreate(Bundle savedInstanceState) {
    ……
   binding.btMetaUp.setOnClickListener(v -> {
            ContentView.showAlertDialog();
        });
    ……

}


//XXXview.java实现
    private AlertDialog mAlertDialogMetadataPoints;

    public void showAlertDialog() {
        final String[] items = {"50.0f", "125.0f", "500.0f", "1000.0f", "2000.0f"};
        AlertDialog.Builder alertBuilder = new AlertDialog.Builder(mContext);
        alertBuilder.setTitle("元数据参数");
        alertBuilder.setItems(items, (dialogInterface, i) -> {
            float metaDataPoint = Float.parseFloat(items[i]);
            setMetaDataWhitePoint(metaDataPoint);  //设置动态元数据参数
            this.invalidate();
            Toast.makeText(mContext, String.valueOf(metaDataPoint), Toast.LENGTH_SHORT).show();
            mAlertDialogMetadataPoints.dismiss();
        });
        mAlertDialogMetadataPoints = alertBuilder.create();
        mAlertDialogMetadataPoints.show();
    }

【效果】

参考：Android之AlertDialog的基础使用